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Produkte (39.000+)

MAX4063ETE+ - Diff Mic Preamp, 2-Ch, 2.4-5.5V, TQFN-16 | Maxim
MAX4063ETE+

MAX4063ETE+ - Diff Mic Preamp, 2-Ch, 2.4-5.5V, TQFN-16 | Maxim

The Maxim Integrated (Analog Devices) MAX4063ETE+ is a 2-channel differential-input microphone preamplifier optimized for high-performance portable applications, integrating two selectable inputs, differential outputs, adjustable gain, an integrated low-noise microphone bias source, and a low-power shutdown mode. Housed in a 16-pin TQFN (4x4 mm) package, it operates from a single 2.4 V to 5.5 V supply, drawing only a few milliamps and dropping to sub-microamp shutdown current for battery-friendly operation. What is a microphone preamplifier? A microphone preamplifier is an analog front-end IC that boosts the very low-amplitude signal produced by an electret or MEMS microphone (typically 10-100 mV) up to line level suitable for an ADC or codec. It sits at the bottom of the audio signal chain: microphone capsule -> microphone preamplifier -> ADC or audio codec -> DSP/baseband. The MAX4063 specifically is a differential-input preamplifier, meaning it amplifies the difference between two input signals and rejects common-mode noise - critical for portable devices where ground loops and RF interference corrupt single-ended audio. Key features include differential inputs with high common-mode rejection, an internal low-noise bias voltage for electret microphones (eliminating the need for an external resistor divider), user-adjustable gain set by an external resistor, a complete shutdown mode for power savings, and a 2.4 V to 5.5 V wide single-supply operating range. The integrated bias source removes at least one or two external components compared to discrete designs, simplifying BOM and shrinking PCB area. Technically, the MAX4063 uses a low-noise op-amp topology optimized for audio bandwidth (20 Hz to 20 kHz), with high PSRR to reject supply ripple from upstream DC-DC converters. The differential architecture rejects RF and supply noise that would otherwise corrupt the microphone signal, and the internal bias source provides a clean regulated voltage to the electret capsule. Two selectable input paths allow the system to multiplex between two microphones (e.g., main mic and headset mic). Typical applications include notebook and tablet computer microphone arrays, headset microphones, Bluetooth headsets, digital cameras with audio capture, and any portable audio device requiring differential microphone amplification with EMI/RFI rejection. The shutdown mode extends battery life in always-listening voice-trigger designs. When designing with this device, place the input series resistors and AC-coupling capacitors close to the IC pins to maximize common-mode rejection. Use the internal bias source instead of an external resistor divider to reduce noise pickup and BOM count. The shutdown pin must be driven logic-high for normal operation and logic-low to enter shutdown. This page synthesizes drop-in alternatives, design considerations, and comparison data not found in the standalone manufacturer datasheet, supporting faster component selection for portable audio designs.

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MAX4490AUK+T - 10MHz, 10V/us Rail-to-Rail Op Amp | Analog Devices
MAX4490AUK+T

MAX4490AUK+T - 10MHz, 10V/us Rail-to-Rail Op Amp | Analog Devices

The Analog Devices MAX4490AUK+T is a single, low-cost CMOS operational amplifier featuring a 10 MHz gain-bandwidth product, a 10 V/us slew rate, and rail-to-rail input and output operation in a 5-pin SOT-23 package. It operates from a single +2.7 V to +5.5 V supply or from dual ±1.35 V to ±2.75 V supplies, making it suitable for compact, low-voltage analog and mixed-signal designs. An operational amplifier, or op amp, is an active analog integrated circuit that amplifies the difference between two input voltages. The MAX4490 belongs to the rail-to-rail input/output amplifier family, allowing its input and output voltages to approach the supply rails. This makes it useful when the signal range and output swing requirements exceed the practical limits of conventional amplifier architectures. Key verified features include a 10 MHz gain-bandwidth product and a 10 V/us slew rate. The device can drive 2 kOhm resistive loads to within 55 mV of either supply rail and remains unity-gain stable. Its single 5-pin SOT-23 package supports space-constrained designs, while its low-cost positioning helps reduce BOM cost in production. The MAX4490AUK+T is built around a CMOS operational-amplifier architecture designed for low-voltage operation and broad input/output range. Its 10 MHz bandwidth supports signal conditioning at moderate frequencies, while the 10 V/us slew rate improves large-signal response. Rail-to-rail output capability is especially useful in battery-powered systems, sensor interfaces, and low-voltage audio or control circuits. Typical applications include portable instrumentation, sensor signal conditioning, audio preamplification, low-voltage data acquisition, and general-purpose analog control. The 2.7 V minimum single-supply operation supports designs powered from 3.3 V rails, while the 5.5 V maximum supports common 5 V systems. Designers should verify the exact pinout and package variant, maintain adequate supply bypassing, and account for the 55 mV output headroom specification when driving loads near either rail. Because the MAX4490 is listed by the manufacturer as LAST TIME BUY, sourcing plans and long-term availability should be confirmed before new production commitments.

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MAX4850ETE+ - Dual SPDT Over-Rail Analog Switch | Analog Devices
MAX4850ETE+

MAX4850ETE+ - Dual SPDT Over-Rail Analog Switch | Analog Devices

The Analog Devices MAX4850ETE+ is a dual single-pole double-throw analog switch with over-rail signal handling, supplied in a 16-pin TQFN package measuring 3 mm by 3 mm. The verified distributor data identifies the device as a two-channel SPDT switch intended for audio and USB signal-routing applications. Its defining architecture is a pair of independently controlled analog switches that can route a common terminal to one of two switched terminals. An analog switch is a solid-state semiconductor device used to connect or disconnect signal paths under digital control. The SPDT, or single-pole double-throw, topology provides one common terminal and two selectable throws. This makes an SPDT switch useful for selecting between two sources, sharing one output with two paths, or implementing basic routing and isolation functions. MAX4850 belongs to the broader category of interface ICs and analog switch ICs within semiconductor signal-control devices. The MAX4850ETE+ combines two SPDT channels in one compact 16-TQFN package. Its over-rail signal-handling feature is specifically identified in the verified product descriptions. This feature is important in circuits where the switched voltage may extend beyond the device's normal supply-rail limits, although the exact permitted input and supply ranges were not supplied by the verified data and must be confirmed in the manufacturer datasheet before design release. The MAX4850ETE+ is applicable to audio routing, USB signal switching, and other compact interface systems in which two independent selection functions are useful. Its 3 mm by 3 mm TQFN package reduces board area compared with larger switch packages, while exposed-pad construction can improve heat transfer when the device dissipates appreciable power. Exact contact resistance, bandwidth, leakage, channel capacitance, logic thresholds, supply range, and timing values remain unavailable in the supplied records and therefore are not asserted here. Use the MAX4850ETE+ when a design requires dual SPDT switching in the compact 16-TQFN footprint and when its verified over-rail handling characteristics satisfy the signal levels involved. Designers should confirm the complete electrical limits, control-pin truth table, recommended input circuit, and exposed-pad layout against the official datasheet. The verified distributor records support availability inquiries and quote-based purchasing, but they do not provide a numerical price table or confirmed stock quantity. This page distinguishes directly verified facts from missing technical data, connects the device with appropriate audio, USB, routing, and signal-isolation use cases, and explains what engineers must verify before layout. It also records the absence of verified pin-to-pin substitute MPNs instead of presenting speculative cross-brand parts as drop-in replacements.

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MAX4851HETE - Quad SPST Over-Rail Switch | Analog Devices
MAX4851HETE

MAX4851HETE - Quad SPST Over-Rail Switch | Analog Devices

Analog Devices MAX4851HETE is a quad SPST analog switch with over-rail signal handling, a 2 V to 5.5 V supply range, and a 16-pin TQFN package measuring 3 mm by 3 mm. The device provides four independent single-pole, single-throw switch channels, with a stated on resistance of 4.5 ohm, turn-on time of 100 ns, turn-off time of 60 ns, and isolation of 80 dB. Its extended operating range is -40°C to +85°C. An analog switch is a semiconductor device that routes an electrical signal between external terminals under digital control. The SPST designation means each of the four channels has one signal path, while the quad configuration integrates four switches into one package. In the device hierarchy, MAX4851HETE belongs to the analog-switch, interface-IC, and semiconductor categories. This integration allows one controller to manage several independently switched signal lines on a compact circuit board. Over-rail signal handling is the principal functional distinction of the MAX4851 family. This characteristic allows the switched signal to extend beyond the nominal supply-voltage range, which is useful when a source can present a voltage above or below the switch’s normal operating rails. The 2 V to 5.5 V operating range also supports both lower-voltage and conventional 5 V system environments. The compact 16-pin TQFN package reduces PCB area compared with larger switch packages. The MAX4851HETE is designed for signal routing where rapid transitions and channel isolation matter. Its 100 ns turn-on and 60 ns turn-off times provide substantially faster switching than many mechanical relay implementations. The 80 dB isolation specification helps reduce unwanted coupling between channels, while the 4.5 ohm on resistance suits applications where moderate insertion resistance is acceptable. These characteristics position the device between low-cost mechanical relays and more specialized high-performance switch networks. Typical uses include test and measurement signal routing, industrial control interfaces, communication-line switching, instrumentation multiplexing, and embedded systems that must route external signals under firmware control. It can also support over-rail input conditioning when the controlling system has a different voltage domain. The extended -40°C to +85°C range makes it appropriate for industrial equipment where room-temperature commercial components would be insufficient. Designers should verify every signal’s absolute maximum voltage, logic threshold, and permitted over-rail condition before routing it through the switch. Input and ground connections should have low impedance paths, while unused control pins should be driven to a defined state. Because on resistance contributes insertion loss and consumes power, sensitive high-frequency or precision analog paths should be checked for bandwidth and attenuation rather than relying only on nominal transition time. This product page combines the MAX4851 family specifications, package details, sourcing information, and engineering guidance with same-package replacement analysis. It also highlights the practical distinction between fast semiconductor switching, over-rail operation, channel isolation, and the trade-offs associated with the device’s 4.5 ohm on resistance.

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MAX4852ETE+T - Dual SPDT Over-Rail Switch | Analog Devices
MAX4852ETE+T

MAX4852ETE+T - Dual SPDT Over-Rail Switch | Analog Devices

The Analog Devices MAX4852ETE+T is a dual SPDT analog switch with over-rail signal handling, 4.5 ohm on-resistance, and a 16-pin TQFN package measuring 3 mm by 3 mm. It supports a +2 V to +5.5 V supply range, 1.8 V-compatible logic, 135 MHz -3 dB bandwidth, and signals extending to 5.5 V even beyond the positive supply rail. An analog switch is a semiconductor device that routes electrical signals between circuit nodes under digital control. The MAX4852 belongs to the analog-switch and multiplexer hierarchy, where SPDT means single-pole, double-throw switching. Two independently controlled switches can select one of two signal paths for each pole. Over-rail handling distinguishes this device from conventional rail-to-rail switches by allowing a signal to pass through without distortion when it exceeds the positive supply voltage. The MAX4852 provides low 4.5 ohm on-resistance, 1 microamp low supply current, and a 0.1 ns differential skew specification. Its 135 MHz -3 dB bandwidth supports high-frequency signal routing. The device is also identified as compliant with USB 2.0 full-speed and USB 1.1 signal-switching requirements, making it suitable for low-speed USB signal paths and other data-selection circuits. Internally, each SPDT switch uses CMOS-compatible control inputs and supports over-rail signal passage. According to the Analog Devices product information, the MAX4852 uses the pass-through arrangement in which a signal up to 5.5 V can pass through even when the positive supply rail is exceeded. By contrast, the MAX4852H family places the switch input into a high-impedance state when the input exceeds the supply rail. Typical uses include audio routing, USB signal selection, test and measurement systems, communication interfaces, and industrial control equipment. The two-switch configuration allows a signal source to be routed to one of two destinations or, using suitable wiring, to select between two inputs. This makes the MAX4852 useful where compact routing, low supply current, and signal handling beyond the supply rail are important. Designers should verify control-logic levels, signal amplitude, bandwidth, and on-resistance against the application before finalizing the layout. Keep routed signal traces short, use a continuous ground reference, and place bypass capacitance near the supply pins. Account for the 4.5 ohm on-resistance when calculating insertion loss, especially when driving capacitive or low-impedance downstream loads. This page combines manufacturer specifications, verified sourcing records, same-family drop-in options, application guidance, and design considerations to support faster component evaluation and PCB-level decision-making.

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MAX4852HETE+ Dual SPDT Analog Switch | Analog Devices
MAX4852HETE+

MAX4852HETE+ Dual SPDT Analog Switch | Analog Devices

The Analog Devices MAX4852HETE+ is a dual SPDT analog switch with over-rail signal handling, supplied in a 16-terminal TQFN surface-mount package. The device provides two independent single-pole, double-throw switching functions in one IC, supporting analog signal routing where one input must connect to one of two possible outputs. Its industrial temperature grade and surface-mount construction suit compact signal-conditioning and test equipment designs. An analog switch is a semiconductor-controlled routing component that connects or disconnects signal paths under digital control. A dual SPDT device extends this category by combining two SPDT channels in a single package. The MAX4852 belongs to the broader analog-switch and multiplexer hierarchy, where it sits between passive mechanical switching and more complex multiplexed signal-acquisition systems. Key features include two SPDT analog switches, over-rail signal handling, 16 terminals, and an exposed-pad TQFN package identified by package code HVQCCN. The square surface-mount package supports compact PCB layouts, while the exposed pad provides a thermal and ground connection when the manufacturer land pattern is followed. Analog Devices identifies the MAX4852 as being in production. The MAX4852 combines two separately controlled routing sections in one IC rather than requiring two discrete single-switch packages. Each SPDT section can direct a common signal toward one of two outputs, making the device useful for source selection, polarity routing, measurement-path switching, and signal-path isolation. Over-rail signal handling identifies the intended capability for signals extending beyond the nominal supply range, subject to the operating limits and absolute maximum ratings in the manufacturer datasheet. Typical applications include automated test equipment, data-acquisition modules, instrumentation, communication equipment, and embedded control systems where analog signals must be routed under software control. Integrating both SPDT channels into one package can simplify routing logic and reduce the number of separate switch components, although each board must still provide proper grounding, signal conditioning, and protection appropriate to its external interfaces. Designers should follow the TQFN exposed-pad land pattern and connect the pad as directed in the manufacturer datasheet. Keep sensitive analog traces away from high-current switching paths, provide a low-impedance ground reference, and verify absolute maximum voltage and current limits against the exact operating conditions. The dual architecture is useful only when both switch sections can use the same supply and ground arrangement. This page consolidates the verified MAX4852 device identity, package details, lifecycle information, application guidance, comparison criteria, and sourcing workflow into one engineering-focused reference. Use the Request a Quote form for current availability, lead time, and commercial terms.

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MAX4853ETE - Quad SPST Over-Rail Switch | Analog Devices
MAX4853ETE

MAX4853ETE - Quad SPST Over-Rail Switch | Analog Devices

Analog Devices MAX4853ETE is a quad, single-pole single-throw analog switch with over-rail signal handling, supplied in a 16-pin TQFN exposed-pad package. The verified manufacturer-family description identifies four SPST switches, while the MAX4853 family name and MAX4851/MAX4851H/MAX4853 grouping provide the core functional context. Exact electrical ratings, switch resistance, leakage current, bandwidth, and supply limits are not present in the supplied web extracts and therefore must be confirmed in the manufacturer datasheet before design release. An analog switch is an integrated semiconductor device that connects or discloses signal paths under digital control. In the product hierarchy, MAX4853ETE is an analog switch, also described as a multiplexer or switch IC, and belongs to the broader interface-IC and signal-routing categories. Unlike a mechanical relay, it changes signal paths electronically without moving physical contacts; unlike a simple transistor switch, it can support controlled, bidirectional analog routing and over-rail signal-handling functions. The primary feature of the MAX4853ETE is its quad SPST organization. Four independently controlled switches can route four separate analog signals, reducing the component count in test, measurement, communication, and signal-routing systems. Its over-rail signal-handling characteristic allows the switch to be evaluated for applications where the controlled signal may extend beyond the nominal supply rail. The TQFN-16 exposed-pad package supports compact surface-mount layouts while providing a thermal path through the exposed pad. The MAX4853, MAX4851, and MAX4851H appear together in the verified family description, but the extracts do not provide enough electrical detail to claim that those devices are electrically or pin compatible with MAX4853ETE. In particular, contact configuration, supply topology, control logic, on-resistance, signal range, and absolute maximum ratings must be compared before substitution. The verified search results describe the MAX4853 family as having 3.5/7 dual-supply, quad-SPST over-rail functionality, but the corrupted characters in that snippet prevent safe extraction of further conditions. Typical uses for this device include analog test-point selection, signal-routing in instrumentation, multiplexing between external circuits and a shared analog-processing chain, and controlled connectivity in communications or industrial electronics. A practical design would use the control pins from a microcontroller or logic device, connect the exposed pad to the PCB ground or thermal plane as specified by the datasheet, and provide clean supply bypassing close to the package. Logic levels and timing must be checked against the exact operating supply. The primary design consideration is signal integrity. Because the supplied extracts do not provide verified bandwidth, charge injection, off isolation, on resistance, or capacitance values, engineers should not size termination or filtering from assumptions. Consult the MAX4853 manufacturer datasheet for the complete electrical characteristics, recommended operating conditions, truth tables, and application information. Also verify the exposed-pad connection and reflow profile for the specific TQFN-16-EP package. This product page separates what is confirmed by the supplied search evidence from parameters that remain unverified. It combines the confirmed quad-SPST function, over-rail feature, and TQFN-16-EP package with explicit data gaps, avoiding invented pricing, ratings, pin assignments, or replacement claims. That distinction is particularly important for analog switches, where apparently similar parts can differ in signal range, control thresholds, and channel behavior.

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MAX4853HETE - 3.5/7Ω Quad SPST Analog Switch | Analog Devices
MAX4853HETE

MAX4853HETE - 3.5/7Ω Quad SPST Analog Switch | Analog Devices

The Analog Devices MAX4853HETE is a quad SPST analog switch with over-rail signal handling, 3.5Ω/7Ω on-resistance options, a 2 V to 5.5 V supply range, and a 16-pin TQFN-EP package measuring 3 mm by 3 mm. The HETE ordering code identifies the extended-temperature, enhanced-lead TQFN configuration for industrial systems. Its four independent normally closed or normally open switch paths are designed for precision signal routing where low on-resistance, fast switching, and controlled off leakage are important. An analog switch is a semiconductor device that routes electrical signals between terminals with controlled impedance. A quad SPST switch contains four single-pole, single-throw channels, giving the designer four independently controlled paths on one IC. These devices sit between sensors, test equipment, instrumentation, communications, and industrial control systems. When used as part of a larger signal chain, they contribute less series resistance, faster transitions, and less signal degradation than mechanical switching approaches. The MAX4853 family supports operation from 2 V to 5.5 V and switching times listed as 100 ns for turn-on and 60 ns for turn-off. Its low on-resistance is identified as 3.5Ω or 7Ω depending on the device variant, while the MAX4853HETE also provides over-rail signal handling. Off-isolation is listed as 80 dB, which helps preserve signal integrity when a channel is disconnected. The compact TQFN-16-EP package reduces board area while supporting dense analog and mixed-signal layouts. Typical uses include multimeter and oscilloscope input switching, automated test equipment, signal conditioning, industrial control interfaces, data acquisition, and precision measurement systems. The MAX4853HETE is particularly appropriate when four similar routed signals must be switched under firmware or hardware control while maintaining consistent operation over an extended industrial temperature range. Designers should pay attention to input and output signal levels, supply sequencing, exposed-pad connection, and the maximum voltage applied to switch terminals. The over-rail capability simplifies many routing arrangements, but it does not remove the need to check absolute maximum ratings under power-down, hot-plug, or fault conditions. Place bypass capacitance near the supply pins and route high-frequency switch nodes compactly to minimize parasitic inductance. This product page combines manufacturer specifications, package details, application guidance, and same-footprint comparison considerations. It is intended to help engineers identify whether the MAX4853HETE matches the required voltage, resistance, switching-speed, temperature, and routing performance before committing a board layout to production.

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MAX4854HETE+ - 9Ω Quad SPST Analog Switch | Analog Devices
MAX4854HETE+

MAX4854HETE+ - 9Ω Quad SPST Analog Switch | Analog Devices

The Analog Devices MAX4854HETE+ is a four-circuit, 1:1 analog switch IC with 9Ω on-resistance, 150 MHz bandwidth, and 30 ns switching performance, housed in a 16-pin TQFN package with an exposed pad. It operates from 2 V to 5.5 V and supports over-rail signal handling for industrial signal-routing and protection applications. An analog switch is a semiconductor device that connects or isolates signal paths under digital control. The MAX4854 belongs to the analog switch and multiplexer hierarchy, where each controlled contact provides independently selectable routing for sensors, test equipment, communication interfaces, and mixed-signal systems. Unlike a mechanical relay, it changes state electronically and without mechanical switching delay, although its behavior still depends on the applied control voltage and signal amplitude. The device integrates four SPST switches with a 1:1 signal configuration. Its specified 9Ω on-resistance, 150 MHz bandwidth, and 27.5 pF input capacitance make it suitable for high-speed analog signal paths where capacitive loading must be controlled. Switching characteristics include 30 ns operation in the JLCPCB specification, 40 ns turn-off performance, and 900 ps transition timing in the listed technical data. Over-rail signal handling is the key architectural feature for this product family. It allows the switched signal to operate beyond the normal supply range under the conditions specified by the manufacturer, which is useful in industrial systems where an input can remain active while the control or supply rail changes. The 2 V to 5.5 V supply range supports both lower-voltage portable systems and conventional 5 V industrial equipment. Typical uses include test-and-measurement signal routing, industrial data acquisition, sensor-interface switching, protection isolation, and communication-interface signal conditioning. The four independent channels can reduce the number of discrete switch packages required when a design routes several related signals or provides protected paths for external connections. When laying out the MAX4854HETE+, place the exposed pad on a solid, low-impedance ground plane and keep input and output traces short. Confirm that trace capacitance, connector loading, and downstream input capacitance remain compatible with the 27.5 pF device capacitance. Control signals should be driven with clean levels that satisfy the manufacturer’s input thresholds. This product page combines the manufacturer’s electrical characteristics with package-level engineering guidance, application fit, and verified drop-in alternatives. It helps engineers assess bandwidth, capacitance, voltage range, switching speed, thermal layout, and PCB footprint before integrating the MAX4854HETE+ into a signal-routing design.

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MAX4855ETE+T - Dual SPDT Audio Switch | Maxim Integrated
MAX4855ETE+T

MAX4855ETE+T - Dual SPDT Audio Switch | Maxim Integrated

Maxim Integrated MAX4855ETE+T is a dual SPDT analog audio switch with integrated comparators, featuring 0.75 ohm on-resistance, 2 V to 5.5 V single-supply operation, and rail-to-rail signal handling. The device is packaged in a 16-pin TQFN package with an exposed pad on a compact 3 mm x 3 mm footprint. An analog switch is a semiconductor device that routes electrical signals between circuit nodes under digital control. The MAX4855 belongs to the analog switch hierarchy, within interface ICs and multiplexers. Its single-pole, double-throw configuration allows each of two channels to select between two signal paths. Integrated comparators add decision functions, making the device useful when a system must both route an audio signal and evaluate the selected path. The MAX4855ETE+T provides two independently controlled SPDT switches, 0.75 ohm on-resistance, and operation from 2 V to 5.5 V. Rail-to-rail signal handling permits signals to approach the supply rails, while the extended operating temperature range of -40°C to +85°C supports industrial, communications, portable-device, and audio-routing environments. Lead-free construction and RoHS compliance are identified for the MAX4855ETE+T ordering variant. The TQFN-16 package provides a space-saving implementation for compact audio paths. Its exposed thermal pad conducts heat away from the device and generally requires a properly designed PCB thermal plane. The low on-resistance helps reduce signal attenuation when routing audio signals, although total channel performance also depends on switch capacitance, off-state leakage, source impedance, load impedance, and the surrounding analog layout. Typical uses include audio-signal routing in cellular phones, notebook computers, personal digital assistants, and other handheld equipment. The device is also suited to speaker and headset switching, where two channels can select between audio sources while integrated comparison functions assist signal-path control. Low-voltage operation makes it appropriate for systems using 2 V, 2.5 V, 3 V, 3.3 V, or 5 V rails. For a new layout, place the MAX4855ETE+T near the connected audio nodes to minimize trace resistance and susceptibility to interference. Use a continuous ground plane, connect the exposed pad to ground using the manufacturer land pattern, and avoid routing high-current or switching signals beneath the analog input and output pins. Verify the control logic, comparator polarity, and signal levels before finalizing the application. This product page combines manufacturer specifications, package details, sourcing guidance, and application-oriented engineering notes. It also identifies the verified same-package option and clearly distinguishes the MAX4855ETE+T tape-and-reel order variant from MAX4855ETE+ so engineers can select the correct ordering code without changing the PCB footprint.

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MAX485CPA+ - Low-Power RS-485/RS-422 Transceiver | Analog Devices
MAX485CPA+

MAX485CPA+ - Low-Power RS-485/RS-422 Transceiver | Analog Devices

The Analog Devices MAX485CPA+ is a low-power, slew-rate-limited RS-485/RS-422 interface transceiver with one driver and one receiver in an 8-pin PDIP package. The verified product data identifies it as a half-duplex transceiver designed for RS-485 and RS-422 communication, supporting low-power differential bus communication where controlled edge rates help reduce unwanted reflections and electromagnetic interference. The MAX485CPA+ is suitable for industrial equipment, instrumentation, data acquisition, building controls, and other systems that require robust differential signaling over longer cable runs. An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into differential bus signals and receives differential signals back from the bus. In this product family, the transceiver combines a transmitter and receiver while supporting half-duplex communication, meaning the shared bus can transmit or receive according to the system design. The MAX485CPA+ belongs to the broader interface-IC and RS-485 transceiver hierarchy, linking digital logic equipment to a physical differential communication network. Key verified features include a low-power communication architecture, slew-rate-limited signaling, one driver, one receiver, and compatibility with both RS-485 and RS-422 applications. The verified distributor listings identify the package as an 8-pin PDIP and categorize the part as a half-duplex transceiver. The eight-pin package supports through-hole assembly and provides the standard transceiver connections needed for a board-level industrial interface. The official Analog Devices product page describes the MAX485 family as low-power transceivers for RS-485 and RS-422 communication. The transceiver architecture is important in systems where a controller UART connects to a field bus. The driver presents the outgoing data as a differential signal, while the receiver converts the differential bus state into a logic-level signal for the host. Slew-rate limiting reduces the high-frequency content of transitions, helping control signal integrity on terminated or moderately loaded buses. Designers must still select the correct cable, termination, grounding, and biasing strategy for the installed network. Typical applications include industrial automation links, remote sensor networks, security equipment, test and measurement systems, building automation controllers, and communication links between embedded processors and external transceivers. A microcontroller or programmable controller can use the MAX485CPA+ to communicate over a longer differential bus instead of relying on a single-ended signal. The design must account for bus direction control, driver enable timing, receiver enable timing, and the electrical limits of the connected network. For PCB design, place the transceiver close to the connector and route the differential pair with consistent geometry, minimal stubs, and appropriate grounding. Use termination only where required by the bus topology, and verify the cable length, baud rate, node count, and common-mode environment. This page combines verified product descriptions, distributor sourcing information, cross-reference results, and practical interface guidance for engineers evaluating the MAX485CPA+.

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MAX485CSA+ - 2.5Mbps RS-485/RS-422 Transceiver | Analog Devices
MAX485CSA+

MAX485CSA+ - 2.5Mbps RS-485/RS-422 Transceiver | Analog Devices

Analog Devices MAX485CSA+ is a low-power half-duplex RS-485 and RS-422 transceiver with one driver and one receiver, a maximum data rate of 2.5Mbps, and an 8-pin SOIC package. It is designed for bidirectional serial-data links where a compact interface IC must support both differential transmission and differential reception. Unlike a receiver-only line driver or a transmitter-only RS-485 device, the MAX485CSA+ combines both functions and supports half-duplex communication by coordinating its driver and receiver through DE and /RE control inputs. An RS-485 transceiver is a communications interface IC that converts logic-level signals into differential bus voltages and reconstructs logic data from a differential bus. Within the broader hierarchy, the MAX485CSA+ is an RS-485/RS-422 interface transceiver, also described as a line transceiver or differential communications transceiver. It supports balanced signaling systems intended for longer interconnects and noise-immune industrial communication compared with single-ended logic interfaces. The verified manufacturer description identifies the MAX485 family as low-power transceivers for RS-485 and RS-422 communication. Each device contains one driver and one receiver. The MAX485 driver does not impose slew-rate limiting, allowing the family to transmit at data rates up to 2.5Mbps. The verified distributor listing identifies MAX485CSA+ as a 1/1 half-duplex transceiver in an 8-SOIC package. Typical uses include industrial automation links, building-control networks, instrumentation buses, and other balanced serial-data systems. In a half-duplex design, the system controller enables the driver during transmission and enables the receiver during reception. Because the driver and receiver share the same differential bus pins, the DE and /RE signals should be controlled so that the transmitter is disabled while receiving when echo-free reception is required. A principal design consideration is the unreferenced or referenced bus topology. The MAX485CSA+ supports a multidrop communications arrangement, but cable length, data rate, termination, biasing, and transceiver enable sequencing must be evaluated together. The differential bus should use twisted-pair wiring, with termination placed only at the physical ends of the cable and common-mode biasing provided by the system where required. This page consolidates the verified manufacturer description, distributor package and ordering information, a published starting price of $0.0788 as of 2026-10-28, and web-supported drop-in alternatives. It also identifies temperature-grade and qualification data that require confirmation before production release.

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MAX485CSA+T - 2.5Mbps RS-485 Transceiver | Maxim Integrated
MAX485CSA+T

MAX485CSA+T - 2.5Mbps RS-485 Transceiver | Maxim Integrated

Maxim Integrated MAX485CSA+T is a low-power, half-duplex RS-485 and RS-422 interface transceiver with one driver and one receiver, a maximum data rate of 2.5Mbps, a 4.75V to 5.25V supply range, and an 8-pin SOIC package. It converts logic-level signals into balanced differential bus signals and receives differential bus data back into a logic-level output, allowing reliable communication over longer cable runs than single-ended interfaces. An RS-485 transceiver is a physical-layer interface IC used to connect processors, controllers, meters, sensors, and industrial equipment to a differential communication bus. The MAX485 family supports half-duplex operation because its single driver and receiver share the same bus pins. RS-422 and RS-485 use differential signaling, common-mode rejection, and galvanically isolated cable pairs to reduce sensitivity to noise and ground-potential differences. The MAX485CSA+T operates from a single 4.75V to 5.25V supply and supports data rates up to 2.5Mbps. Its driver includes short-circuit current limiting and thermal protection, while the receiver provides fail-safe behavior for certain bus conditions. The commercial-temperature version is specified for operation from 0°C to 70°C. The SOIC-8 package supports compact, surface-mount PCB layouts, and the +T ordering suffix identifies the tape-and-reel shipping configuration. Technically, the device uses separate active-low receiver-enable and driver-enable control inputs, allowing the driver and receiver to be controlled independently when required. A logic-high DE input activates the transmitter, while a logic-low /RE input enables the receiver. The receiver output provides a usable signal when the bus is idle, helping a system distinguish an inactive network from a valid data state. Component values around the interface should be selected from the bus topology and termination requirements rather than added arbitrarily. Typical applications include industrial RS-485 links between supervisory controllers and remote sensors, building-automation equipment, security and access-control panels, industrial motor controllers, instrumentation links, and embedded data-acquisition systems. The 2.5Mbps capability is suitable for short, high-speed bus segments, while longer installations should use lower data rates to maintain reliable rise-time and signal-integrity performance. The primary layout consideration is the bus network itself. Place termination resistors only at the two physical ends of the bus, use twisted-pair wiring, route the differential pair as a tightly coupled pair, and keep the transceiver close to the connector to minimize reflections and radiated noise. Confirm the logic levels, grounding strategy, cable length, node count, and grounding configuration before releasing a production design. This product overview combines the manufacturer interface description with practical guidance for implementing a robust RS-485 network. It also identifies pin-compatible alternatives, application-level usage, PCB considerations, and the key electrical parameters engineers should review when replacing or sourcing the MAX485CSA+T.

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MAX485CUA+ - 5V RS-485/RS-422 Transceiver, 2.5Mbps | ADI/Maxim
MAX485CUA+

MAX485CUA+ - 5V RS-485/RS-422 Transceiver, 2.5Mbps | ADI/Maxim

The Analog Devices (formerly Maxim Integrated) MAX485CUA+ is a low-power transceiver for RS-485 and RS-422 communication, integrating one driver and one receiver in an 8-pin uMAX/uSOP package. It operates from a single 4.75V to 5.25V supply, supports data rates up to 2.5Mbps with no slew-rate limiting, and delivers typical supply current of 300 uA under quiescent or full-duplex load conditions. An RS-485/RS-422 transceiver is a bus-interface IC that converts between single-ended UART/CMOS logic on the controller side and the differential voltage signaling required for robust long-distance, multi-drop communication over twisted-pair cable. Transceivers such as the MAX485CUA+ sit inside the broader Interface IC family and provide the physical-layer (PHY) bridge for industrial fieldbus networks including Modbus, Profibus DP, DMX512, and BACnet, where common-mode noise immunity and cable lengths up to 1200 m are required. Key features of the MAX485CUA+ include 2.5Mbps maximum data rate, 1/8 unit-load (up to 256 transceivers on a bus), thermal-shutdown protection, short-circuit current limiting on the driver outputs, a low-current shutdown mode (on the MAX481/MAX483/MAX487 variants, not the MAX485 itself), true fail-safe receiver inputs that guarantee a logic-high output when the differential input is open or shorted, and an ESD rating of greater than 15 kV HBM on the bus pins per the MAX485 datasheet family. Architecturally, the MAX485CUA+ uses a differential line driver with slew-rate-limited edges on slower speed grades and an un-limited edge rate here for maximum 2.5Mbps throughput, paired with a differential receiver with internal hysteresis for noise rejection. The wide 4.75V to 5.25V supply range is compatible with 5V TTL logic rails; a 3.3V variant (MAX3485) and isolated versions (MAX1480) exist in the same family for different system-level needs. Typical applications include industrial multi-drop RS-485 networks, building-automation HVAC controllers, point-of-sale terminals, packet-based utility metering, and any embedded system that requires half-duplex differential communication over long cables in electrically noisy environments. When designing with the MAX485CUA+, place a 100 ohm termination resistor at each end of the bus and use a low-ESR 100 nF decoupling capacitor as close to VCC as possible. Select 100 ohm twisted-pair cable (EIA-485 characteristic impedance) and avoid star topologies; daisy-chain is required to prevent reflections. This page synthesizes distributor pricing, verified drop-in alternatives, and practical PCB/layout design notes derived from the MAX485 datasheet family and reference designs not reproduced on distributor product pages.

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MAX485ECPA+ - 1 Mbps RS-485/RS-422 Half-Duplex Transceiver | Maxim
MAX485ECPA+

MAX485ECPA+ - 1 Mbps RS-485/RS-422 Half-Duplex Transceiver | Maxim

The Maxim Integrated MAX485ECPA+ is a single-driver, single-receiver half-duplex RS-485/RS-422 transceiver with low-power operation, slew-rate-limited (limited EMI) driver outputs and ±15 kV ESD protection on every driver output and receiver input, packaged in an 8-pin PDIP (through-hole) DIP-8 package. Key headline parameters are a 5 V single supply (4.5 V to 5.5 V), a 1 Mbps data rate from the limited-slew-rate driver, and ±15 kV ESD ruggedization; the device is a 1/1 transceiver in an 8-pin PDIP-8 package. An RS-485 transceiver is a differential line-interface IC inside the broader hierarchy of interface ICs -> differential line driver/receiver -> communications transceiver -> semiconductor. It converts a logic-level serial signal (DI) into a balanced differential pair on the A and B bus wires, and converts a differential bus voltage back into a logic-level receiver output (RO). Unlike a single-ended RS-232 transceiver, an RS-485 driver drives a balanced, floating differential pair, so common-mode noise is rejected and cables up to about 1200 metres at low data rates can be supported. Key features of the MAX485ECPA+ include a limited-slew-rate driver that minimizes EMI and ground bounce on the bus, allowing operation without external slew-control resistors; short-circuit current limiting on the driver outputs; thermal shutdown for excessive power dissipation; and a low quiescent current design that supports low-power node designs. A shutdown (sleep) input is not present on this device, so the node stays enabled while powered, which simplifies bus management in fixed installations. Technically, the MAX485ECPA+ is a single-channel half-duplink device: DE (driver enable) and /RE (receiver enable) are separate pins, so a design can transmit, receive, or disable the bus independently for fail-safe biasing. The driver is designed for a balanced network so that no additional termination or bias resistors are required on the driver side, although the bus must still be properly terminated at the two physical ends and biased at exactly one point if the transceiver's receiver thresholds require it. Typical applications include industrial RS-485 multidrop buses, building automation and HVAC controllers, energy meters, inverters and solar trackers, security and access-control panels, and instrumentation links to remote sensors. The 8-pin PDIP package is preferred for leaded industrial equipment where through-hole assembly, hand soldering, and field replacement are required. The main design consideration is ESD and surge coupling: although the internal protection is rated at ±15 kV on the bus pins, the ESD paths are only effective if the bus entry point is close to the transceiver, so a multi-layer board with a solid ground plane and short A/B traces is strongly preferred over a long unprotected stub. This page consolidates distributor pricing, verified package and interface details, pin-compatible drop-in alternatives in the same PDIP-8 footprint, and practical RS-485 layout and termination guidance that are not collated on a single manufacturer page.

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MAX485ECSA+ - 2.5 Mbps RS-485 Transceiver | Analog Devices
MAX485ECSA+

MAX485ECSA+ - 2.5 Mbps RS-485 Transceiver | Analog Devices

The Analog Devices MAX485ECSA+ is a low-power RS-485 and RS-422 half-duplex line transceiver packaged in an 8-pin SOIC, operating at up to 2.5 Mbps with 15 kV ESD protection on driver outputs and receiver inputs. It combines one driver and one receiver in a package designed for noisy industrial communication links. According to the manufacturer data summarized by distributor listings, the MAX485E family is intended for low-power RS-485 and RS-422 communications in harsh environments. A half-duplex transceiver is a network interface that transmits and receives data on the same differential bus pair but cannot do both simultaneously. The MAX485ECSA+ supports a multidifferential bus architecture using differential data lines for noise immunity, while its driver and receiver enable inputs allow the host to control bus direction. This device sits within the hierarchy of line transceiver, physical-layer interface IC, communication interface, and semiconductor. Principal features include a maximum data rate of 2.5 Mbps, 15 kV ESD protection, slew-rate-limited driver outputs, and low-power operation. The E version differs from the standard MAX485C family by emphasizing electrostatic-discharge protection for industrial environments. The narrow SOIC-8 package also supports compact PCB layouts in distributed control, building automation, instrumentation, and industrial data-acquisition systems. The transceiver uses separate active-low receiver-enable and driver-enable control inputs, permitting a connected MCU to assert the driver for transmission and release it during reception. Differential signaling improves common-mode noise rejection on long cables, but system performance still depends on correct bus termination, controlled cable characteristics, protective grounding, and an appropriate transceiver slew rate. The receiver converts the A and B differential voltage into a single-ended logic signal at the R pin. Typical uses include industrial supervisory control, factory automation, building automation, security equipment, remote instrumentation, and RS-485 links between microcontrollers or programmable logic controllers. The MAX485ECSA+ is particularly appropriate when ESD exposure is more important than minimizing package size. For low-data-rate meter buses, lower-power or higher-node-count variants may be preferable, so protocol and bus-topology requirements should be confirmed before substitution. The critical design consideration is bus configuration. Place termination resistors of 120 ohm at both physical ends of a standard RS-485 trunk, not at every node, and avoid star topologies with heavy loading. Use a common reference ground, controlled cable routing, and suitable surge protection for cables leaving an enclosure. The MAX485ECSA+ is a line transceiver, not a full RS-232 interface, so the host must use differential-bus-compatible logic and a suitable isolation strategy where required. This page consolidates verified distributor availability, an identified pin-compatible cross-reference, package-level comparison data, and application-specific engineering guidance. It distinguishes the MAX485ECSA+ from related MAX485 variants based on verified package, data-rate, ESD-protection, and interface information rather than treating all similarly named transceivers as interchangeable.

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MAX485ECSA-T - Half-Duplex RS-485/RS-422 Transceiver
MAX485ECSA-T

MAX485ECSA-T - Half-Duplex RS-485/RS-422 Transceiver

Analog Devices MAX485ECSA-T is a low-power, half-duplex RS-485 and RS-422 transceiver with one driver and one receiver, a 4.75V to 5.25V supply range, ±15kV ESD protection, and an 8-pin SOIC package. Its slew-rate-limited driver is designed for reliable, low-power communication over noisy industrial, commercial, and instrumentation networks. An RS-485 transceiver is an interface IC that combines differential line-driver and receiver functions into one package. RS-485 supports balanced, multipoint communication over longer distances than a single-ended interface, while RS-422 provides a compatible differential signaling environment. The MAX485 family belongs to the broader transceiver, interface IC, and semiconductor hierarchy used to connect controllers, sensors, meters, and industrial equipment. The device combines low-power operation with a slew-rate-limited output, ±15kV electrostatic-discharge protection on its driver outputs and receiver inputs, and separate receiver-enable and driver-enable controls. These characteristics suit distributed systems where cable transients and reflected signals are possible. Its 4.75V to 5.25V operating supply supports conventional 5V communications equipment, while the 8-pin SOIC package simplifies assembly into industrial-control and data-acquisition products. Each MAX485ECSA-T contains one driver and one receiver. The receiver can remain active while the driver transmits, allowing full-duplex behavior when two appropriately connected transceivers are used. The driver’s controlled slew rate limits high-frequency harmonic content, although the maximum signaling rate and propagation-delay figures should be confirmed against the manufacturer’s electrical-characteristics table for the selected operating conditions. Typical applications include industrial sensor buses, building-automation controllers, utility metering, laboratory instrumentation, and factory data-acquisition links. The same-package pin arrangement can also support PCB reuse when a qualified alternative has equivalent electrical ratings and protocol behavior. Differential routing, proper grounding, termination, and protection-network design remain essential in long or noisy cable installations. Design the bus around the driver’s current capability, receiver sensitivity, and the maximum data rate permitted by the total cable length and topology. Keep the transceiver and protection components close together, route the differential pair as a tightly coupled pair, and avoid placing sensitive analog signals parallel to the communications conductors. This product page combines exact orderable-part information, structured electrical characteristics, pin-compatible replacement options, a parameter comparison, and practical PCB guidance. It helps engineers assess the MAX485ECSA-T as a 5V, ESD-protected half-duplex interface solution for industrial and commercial RS-485/RS-422 links.

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MAX485EEPA+ - 15kV ESD RS-485 Transceiver | Maxim Integrated
MAX485EEPA+

MAX485EEPA+ - 15kV ESD RS-485 Transceiver | Maxim Integrated

The Maxim Integrated MAX485EEPA+ is a low-power, slew-rate-limited half-duplex RS-485 and RS-422 transceiver with one driver and one receiver, 15 kV ESD protection, and a 4.75 V to 5.25 V supply in an 8-pin PDIP package. It is designed for bidirectional industrial and instrumentation data links where reduced transition rates, overload protection, and reliable differential signaling are important. An RS-485/RS-422 transceiver is an interface IC that converts logic-level signals to and from differential bus voltages. It belongs to the transceiver hierarchy: interface IC -> RS-485/RS-422 transceiver -> differential communication interface. The MAX485EEPA+ combines a transmitter, receiver, driver-enable control, receiver-enable control, and bus pins in one device, reducing the component count required for a bidirectional serial-data link. The MAX485EEPA+ provides one transmit channel and one receive channel. Its 15 kV ESD protection is the principal rugged-environment feature identified in the supplied manufacturer-related data. Slew-rate limiting helps control edge speed and reduce reflected-signal and electromagnetic-interference problems on longer cables. The low-power operating mode also makes the device suitable for equipment where the transceiver remains connected to a bus even when communication is inactive. Communication is established by connecting the differential A and B pins to the twisted-pair bus. The DE input enables the driver, while the active-low RE input enables the receiver. These controls allow the two halves of the transceiver to be disabled independently, supporting point-to-point links, multidrop RS-485 networks, and panel-mounted equipment where a local test loop can be useful. Logic-side signals connect to DI for transmit data and RO for received data. Typical uses include industrial sensor gateways, programmable logic controller interfaces, building-automation equipment, industrial test instruments, and RS-422 links between equipment cabinets. The 5 V supply matches systems that already operate from regulated 5 V rails. Because the device is half-duplex, software or hardware must control bus direction and avoid transmission conflicts when several nodes share the same pair. For reliable operation, route the A and B differential pair as a tightly coupled twisted pair, minimize stub branches, and place termination at physical ends of the bus rather than at every node. Provide local supply decoupling and verify that transceiver-enable timing prevents two drivers from driving the bus simultaneously. Unverified transceiver thresholds, current limits, and exact timing values must be confirmed in the manufacturer datasheet before final release. This product page combines verified distributor descriptions, cross-reference evidence, package and pinout information, replacement guidance, and practical bus-layout considerations. It also distinguishes documented drop-in family options from alternatives that would require a different PCB footprint.

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MAX485EESA+ - ±15kV ESD RS-485/RS-422 Transceiver | Analog Devices
MAX485EESA+

MAX485EESA+ - ±15kV ESD RS-485/RS-422 Transceiver | Analog Devices

The Analog Devices (formerly Maxim Integrated) MAX485EESA+ is a 5V, half-duplex, slew-rate-limited RS-485/RS-422 transceiver in an 8-pin SOIC (SO-8) package, featuring ±15kV ESD protection on the bus pins for harsh industrial environments. It integrates one driver and one receiver, supports data rates up to 2.5 Mbps, and operates from a single 5V supply drawing 1 mA (typical) quiescent current while allowing up to 32 transceivers on the bus. The slew-rate-limited driver minimizes EMI and reflections on improperly terminated cables, enabling error-free transmission over twisted-pair media up to 1200 m. The MAX485EESA+ includes ±15kV HBM ESD protection on the driver output and receiver input pins, making it suitable for hot-swap and field-bus installations where cable discharge events are common. An RS-485/RS-422 transceiver is a differential line driver/receiver IC that converts a single-ended TTL/CMOS logic signal into a balanced differential pair suitable for transmission over twisted-pair cabling. RS-485 supports multi-drop (up to 32 unit loads, 256 with newer parts) half-duplex communication across long distances; RS-422 is a point-to-point full-duplex standard. The MAX485EESA+ belongs to the half-duplex RS-485 transceiver class within the larger interface-IC category of wired communication semiconductors. Key features include ±15kV HBM ESD protection, slew-rate-limited driver for low EMI, 1/2 unit-load input impedance, thermal-shutdown protection, and short-circuit current limiting. The receiver provides fail-safe operation, guaranteeing a logic-high output when the bus inputs are open, shorted, or idle, eliminating the need for external biasing resistors at the ends of the cable. Current limiting and thermal shutdown protect the driver outputs against excessive power dissipation caused by bus contention or output short circuits to ground or supply. Typical applications include industrial field-bus networks (Modbus, Profibus, DMX512), building automation (BACnet, LonWorks), HVAC controls, security systems (access control, alarm panels), and point-of-sale (POS) equipment. The wide operating temperature range (-40 °C to +85 °C for the E grade) and rugged ESD rating make it a drop-in solution for industrial controllers, PLCs, and motor-drive interfaces. When designing with this device, place 100 nF bypass capacitors as close as possible to VCC (pin 8) and provide a 120 Ω termination resistor at each end of the bus when using the highest data rates. Keep the PCB stub length to the connector below one-tenth of the driver rise time to minimize reflection-induced jitter. Use twisted-pair cable with 100 Ω characteristic impedance (e.g., Belden 3106A) and avoid running RS-485 traces parallel to noisy switching rails. This page synthesizes distributor pricing, drop-in same-package alternatives, and application design notes that extend beyond the manufacturer datasheet.

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MAX485EESA+T - 2.5Mbps RS-485 Transceiver | Analog Devices
MAX485EESA+T

MAX485EESA+T - 2.5Mbps RS-485 Transceiver | Analog Devices

Analog Devices MAX485EESA+T is a 5 V, half-duplex RS-485 and RS-422 transceiver with a maximum data rate of 2.5 Mbps, slew-rate-limited driver outputs, and ±15 kV ESD protection, housed in an 8-pin SOIC package. A transceiver IC combines a differential line driver and receiver on one die, allowing a digital UART signal to travel over a balanced, noise-resistant bus. The MAX485 family belongs to the interface IC hierarchy: RS-485 transceiver → differential transceiver → wired-communication interface IC → semiconductor. Its half-duplex architecture supports bidirectional communication by sharing one differential pair and changing direction through the driver-enable and receiver-enable controls. The MAX485EESA+T combines a 4.75 V to 5.25 V supply range with a 2.5 Mbps maximum data rate. Its slew-rate-limited driver reduces unwanted high-frequency energy on the bus, while ±15 kV ESD protection strengthens the interface against electrostatic discharge encountered in industrial environments. The low-power design also supports systems where the transceiver must remain connected to a 5 V control rail. Operationally, the device provides separate receive-enable and driver-enable inputs, allowing the receiver to remain active while transmission is disabled. The receiver converts differential bus voltage into a logic-level output, while the driver converts a logic-level input into differential A and B outputs. This arrangement supports both point-to-point links and multi-drop RS-485 networks when termination and biasing are designed correctly. Typical applications include industrial control networks, building automation, instrumentation links, data acquisition systems, motor controllers, and factory communication equipment. The MAX485EESA+T is especially appropriate for factory environments where ESD exposure, long cable runs, and grounded or ungrounded equipment can create substantial bus-level transients. PCB design should preserve the pinout and provide the decoupling, protection, and termination required by the bus. Place the VCC bypass capacitor close to the supply pin, route the differential pair as a balanced pair, and use a protection network designed for the expected surge and ESD environment. Avoid long unprotected stubs because they can create impedance discontinuities and reflections. This product page combines the manufacturer-datasheet specifications, verified package and cross-reference information, drop-in alternatives, and application-focused engineering guidance. It is structured to support component selection, PCB replacement planning, and RS-485 interface design rather than only basic part identification.

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MAX485EPA+ - 2.5Mbps RS-485/RS-422 Transceiver | Maxim Integrated
MAX485EPA+

MAX485EPA+ - 2.5Mbps RS-485/RS-422 Transceiver | Maxim Integrated

The Analog Devices Inc./Maxim Integrated MAX485EPA+ is a low-power RS-485/RS-422 interface transceiver with one driver and one receiver, a 2.5 Mbps maximum signaling rate, and an 8-pin PDIP package. It is designed for industrial, instrumentation, and distributed-control links that require reliable differential data transmission over longer cable runs. The verified listing identifies the device as a half-duplex RS-422/RS-485 transceiver with a 4.75 V to 5.25 V supply range. An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into differential bus signals and converts received differential signals back into CMOS-compatible logic. RS-422 and RS-485 use differential signaling to improve noise immunity and allow communication across cables in electrically noisy environments. The MAX485EPA+ supports one driver and one receiver, making it suitable for point-to-point, multidrop, and half-duplex bus arrangements when the system includes the required enable control, termination, biasing, and transceiver-direction logic. The MAX485EPA+ is specified as a low-power transceiver with driver short-circuit current limiting and protection. The verified product data states that the output slew rate is not limited and that the device can transmit up to 2.5 Mbps. This speed capability makes it useful for factory automation, industrial control, building automation, and embedded communications where the bus must carry bursts of digital data while maintaining a compact, widely available 8-pin through-hole package. The device is suitable for RS-485 networks connected to microcontrollers, sensors, motor controllers, data converters, and remote I/O modules. The system designer must account for bus topology, cable length, termination resistors, common-mode limits, grounding, and the direction-control interface. The MAX485EPA+ does not by itself provide galvanic isolation; applications requiring isolation between high-energy bus wiring and control electronics should add suitable isolation components and protection devices. Because the MAX485EPA+ uses a PDIP package, it is particularly useful for prototypes, serviceable equipment, and industrial products assembled through-hole rather than high-density automated surface-mount processes. The 8-pin package simplifies inspection and rework. The plus suffix identifies the leaded product ordering code shown in the verified distributor records; package, temperature, and qualification requirements should still be checked against the exact manufacturer ordering information before production release. This page combines verified distributor listings, manufacturer-family information, pricing context, and practical interface design guidance. It is intended to help engineers identify whether the MAX485EPA+ fits an existing RS-485 or RS-422 PCB and to distinguish it from alternatives with different package, speed, supply, or protection characteristics.

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MAX485ESA+ - 5V RS-485/RS-422 Transceiver, 2.5Mbps, SOIC-8
MAX485ESA+

MAX485ESA+ - 5V RS-485/RS-422 Transceiver, 2.5Mbps, SOIC-8

The Analog Devices (formerly Maxim Integrated) MAX485ESA+ is a low-power, slew-rate-limited RS-485/RS-422 transceiver housed in an 8-pin SOIC package. The device contains one driver and one receiver, operates from a single 5 V supply, and supports data rates up to 2.5 Mbps with half-duplex communication. It draws between 120 µA and 500 µA of supply current when unloaded or fully loaded with disabled drivers, making it well suited for power-sensitive industrial networks. What is an RS-485/RS-422 transceiver? An RS-485 transceiver (TIA/EIA-485) is a differential line driver/receiver IC that converts a single-ended TTL/CMOS logic signal into a balanced differential signal suitable for transmission over twisted-pair cabling. RS-485 transceivers belong to the broader physical-layer IC family inside Interface ICs, which also includes RS-232, CAN, and I2C transceivers. The half-duplex variant shares one differential pair between driver and receiver, reducing cable cost for bidirectional buses such as Profibus, Modbus RTU, and DMX512. Key features of the MAX485ESA+ include a 1/8 unit-load input impedance (allowing up to 256 transceivers on a single bus), driver short-circuit current limiting, and thermal-shutdown protection that places the driver outputs into a high-impedance state. The receiver includes a fail-safe function that guarantees a logic-high output when the differential input is floating, shorted, or terminated but idle. Industry-standard SOIC-8 pinout and 5 V operation make the part a drop-in upgrade or replacement for legacy Maxim/Intersil RS-485 designs. Internally, the driver uses a slew-rate-limited output stage to reduce EMI and reflections on unterminated cables, while the receiver incorporates hysteresis and an input filter to reject common-mode noise. The common-mode input voltage range extends from -7 V to +12 V relative to ground, supporting long cable runs with significant ground potential differences between nodes. Typical applications include industrial field-bus networks (Modbus, Profibus, BACnet), building automation, HVAC controllers, motor-control command links, point-of-sale terminals, and multidrop RS-485 utility metering. Designers select the MAX485ESA+ when they need a proven, second-source-friendly 5 V half-duplex transceiver with long-term availability. When designing with this part, place 120 Ω termination resistors only at the two physical ends of the bus to avoid loading the drivers. Use a 100 nF decoupling capacitor placed within 5 mm of the VCC pin, and route the A/B differential traces with controlled 100 Ω differential impedance and ground-referenced return paths. This page synthesizes distributor pricing, drop-in compatible alternatives (including the SN75176B and SP485EN-L/TR families), and practical design notes that go beyond the bare datasheet, helping engineers select and source the right transceiver faster.

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MAX485ESA+T - 2.5Mbps RS-485/RS-422 Transceiver | ADI
MAX485ESA+T

MAX485ESA+T - 2.5Mbps RS-485/RS-422 Transceiver | ADI

Analog Devices MAX485ESA+T is a low-power half-duplex RS-485/RS-422 interface transceiver with one driver and one receiver, a maximum data rate of 2.5Mbps, and a 4.75V to 5.25V supply range. The device is supplied in an 8-pin SOIC package and is intended for industrial bidirectional serial-data links. An RS-485 transceiver is an interface IC that combines a differential line driver and differential receiver. These transceivers connect a host controller, PLC, sensor, or industrial endpoint to a balanced communication bus. The RS-485 standard hierarchy supports longer, noise-resistant interconnects than single-ended interfaces, while RS-422 compatibility allows the same device family to serve point-to-point links. Driver enable and receiver-enable inputs provide local control over bus direction and reception. The MAX485ESA+T uses a 4.75V to 5.25V supply and supports data rates up to 2.5Mbps. Its driver is short-circuit-current limited and protected, an important feature when a bus fault drives a line into a low-impedance condition. The integrated receiver converts differential bus voltage into a logic-level output, while the driver converts logic-level data into differential output. This combination supports half-duplex operation, in which the same pair of conductors carries transmitted and received data at different times. The 8-pin SOIC package keeps the implementation compact and familiar to industrial-control board designers. Because the MAX485ESA+T does not limit its slew rate, it can transmit at up to 2.5Mbps according to the provided manufacturer and distributor documentation. That speed is useful for factory automation, instrumentation, and embedded control networks, although cable length, termination, topology, and signal integrity become increasingly restrictive as data rate rises. Typical uses include RS-485 fieldbus connections, motor-control diagnostics, industrial sensor gateways, building-control equipment, and communications between a microcontroller and remote peripheral. In a typical circuit, the transceiver sits between a UART-capable controller and a protected, twisted-pair bus. A termination resistor is placed at each end of the bus, while common-mode protection and chassis-grounding practices may be needed in electrically noisy installations. Designers should verify that the selected cable length and topology can support the intended 2.5Mbps rate, connect the receiver and driver enables for the required half-duplex behavior, and maintain compatible logic levels across the system. The 5V supply requirement also requires a 4.75V to 5.25V regulator rather than a 3.3V rail. This page combines the verified manufacturer and distributor information with package-level engineering guidance, practical interface considerations, pricing context, and pin-compatible replacement analysis to support faster component selection and PCB migration.

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MAX485MJA - 2.5 Mb/s RS-485/RS-422 Transceiver, 8-CERDIP | Analog Devices
MAX485MJA

MAX485MJA - 2.5 Mb/s RS-485/RS-422 Transceiver, 8-CERDIP | Analog Devices

The Analog Devices MAX485MJA is a 1/1 half-duplex RS-485/RS-422 interface transceiver rated for 2.5 Mb/s data rate, packaged in an 8-pin CERDIP military-grade ceramic dual-inline package. Each device contains one driver and one receiver, providing a complete differential bus interface on a single die. An RS-485 transceiver is the physical-layer bridge between a logic-level UART or microcontroller and a balanced, multi-drop cable bus. RS-485 belongs to the differential signaling family of interface ICs, sitting between the transceiver category and the wider Interface ICs > Drivers/Receivers/Transceivers hierarchy. Because differential signaling sends a signal and its complement over a twisted pair, it rejects common-mode noise, allows long cable runs, and supports multiple nodes on one bus, making it the de facto standard for industrial automation, building controls and instrumentation networks. Key features of the MAX485MJA include a low-power slew-rate-limited driver that reduces EMI and ringing on slow edges, one driver and one receiver per package, and a 2.5 Mb/s data rate as listed by distributors for the MAX485 series. The /RE and DE pins give the designer independent control over driver enable and receiver enable, allowing half-duplex bus turnaround control from a single microcontroller pin. Operating over the extended industrial temperature range, the CERDIP-8 mechanical format gives long-term availability for rugged and legacy industrial platforms. The device implements a classic current-mode differential driver with a failsafe bias network so that an unpowered or disconnected node does not clamp the bus, plus a fail-safe receiver stage that interprets an open or shorted bus as a defined logic state. The 8-pin pinout (RO, /RE, DE, DI, GND, A, B, VCC) is shared across the entire MAX48x family, which simplifies cross-referencing and second sourcing across ceramic, plastic and surface-mount variants. Typical applications include industrial RS-485 field buses such as Modbus RTU networks, building HVAC and lighting controllers, PLC and data-acquisition module interfaces, POS terminals and industrial instrumentation, and retrofit of legacy 2.5 Mb/s RS-485 equipment where a ceramic military-temperature package is required. When designing with the MAX485MJA, note that the 8-pin package leaves no dedicated fail-safe bias resistor footprint; many designs add 100 ohm to 220 ohm termination resistors and a fail-safe bias network externally. Because the CERDIP-8 body is larger than a standard PDIP-8, check board mechanicals and pin-hole spacing, and keep the A and B differential pair away from switching nodes and high-current returns to preserve common-mode margin. This page consolidates verified distributor pricing, a drop-in cross-reference set, pin-level detail and applied design guidance that is not available from a single manufacturer datasheet, helping engineers qualify this part quickly for both new and legacy industrial designs.

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