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MAX354EWE+ 8:1 Fault-Protected Analog Multiplexer | Analog Devices
MAX354EWE+

MAX354EWE+ 8:1 Fault-Protected Analog Multiplexer | Analog Devices

The Analog Devices MAX354EWE+ is a single 8:1 analog multiplexer with a 350 ohm on-resistance, fault protection to 40 V beyond the supply rails, and a 16-pin SOIC package. It routes one of eight single-ended analog inputs to a common output while protecting sensitive downstream circuitry during power-up, power-down, and fault conditions. An analog multiplexer is an interface IC that connects multiple signal paths to a shared processing or measurement resource. The MAX354 belongs to the broader switch and multiplexer hierarchy, where multiplexing reduces the number of input channels, converters, amplifiers, or external connectors required by an electronic system. Its fault-protected architecture is especially useful when external signals can exceed the nominal supply range during startup or abnormal operating conditions. The MAX354EWE+ provides eight channels, a 350 ohm on-resistance, and protection against overvoltage up to 40 V beyond the supply rails. These characteristics make the device relevant to data acquisition, instrumentation, test systems, industrial control, and battery-powered equipment. The MAX354/MAX355 family uses a series N-channel, P-channel, N-channel structure that isolates protected downstream components from excessive input voltage. The device is specified as a single-ended multiplexer in a 16-SOIC surface-mount package. Its industrial temperature grade suits equipment expected to operate across demanding environmental conditions. Because on-resistance and protection behavior influence signal fidelity and system reliability, designers should account for the complete source impedance, selected channel, supply state, and external signal amplitude rather than treating the switch as an ideal conductor. Typical uses include eight-channel sensor selection, industrial measurement front ends, automated test equipment, and embedded control systems that need to share an analog-to-digital converter or signal-conditioning channel. In these systems, the multiplexer reduces channel count while the fault-protected structure provides additional tolerance for externally driven signals. The final input range must remain compatible with the complete signal chain and device operating limits. A key design consideration is the relationship between the multiplexer, the protected signal source, and downstream circuitry. Keep sensitive return paths compact, observe the manufacturer’s pin configuration when assigning inputs and enables, and evaluate the switch resistance in the source impedance of the selected channel. The 350 ohm on-resistance is especially important for high-impedance sensors and low-amplitude measurements. This product page combines the manufacturer’s multiplex function, protection characteristics, package details, application analysis, and parameter-level comparison. It also distinguishes device-family options from true pin-compatible drop-in replacements so that PCB changes are not mistaken for a straightforward substitution.

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MAX368CPN+ - 8:1 Fault-Protected Analog Mux, 1.8kOhm | Maxim
MAX368CPN+

MAX368CPN+ - 8:1 Fault-Protected Analog Mux, 1.8kOhm | Maxim

The Analog Devices (Maxim Integrated) MAX368CPN+ is a fault-protected 8-channel (8:1) analog multiplexer with internal data latches and a 1.8 kOhm on-resistance, housed in an 18-pin PDIP (0.300 in / 7.62 mm) package. An analog multiplexer is a switch network that selects one of several analog input signals and routes it to a single output under digital control. Within the signal-chain hierarchy, the analog multiplexer sits between sensors or signal sources and amplifiers or ADCs, and is itself a member of the broader analog switch IC family. Fault-protected multiplexers add a critical layer: their inputs tolerate fault voltages far beyond the supply rails, and outputs are forced to a high-impedance state when power is removed, protecting downstream circuitry. Key features of the MAX368 include overvoltage protection up to plus or minus 35V at the analog inputs, channels automatically turned off when power is lost, all digital inputs TTL and CMOS compatible, and internal data latches for channel selection so the addressed channel is held without continuous drive of the address lines. Technical depth: the device operates from plus or minus 15V supplies with 5 nA typical leakage, and switches in approximately 1.5 microseconds on-time and 1 microsecond off-time with break-before-make switching action, ensuring the selected channels never short together during transitions. The C-grade temperature specification covers commercial ranges; E and M grades exist for extended and military environments. Typical applications include industrial data acquisition front ends where wiring faults or misconnection would otherwise destroy a standard CMOS mux, test and measurement input selector stages, and ATE (automated test equipment) channel routing where inputs may exceed supply rails. Design consideration: the 1.8 kOhm on-resistance must be accounted for in settling-time budgets when driving sample-and-hold or ADC inputs, particularly at higher source capacitance. This page synthesizes distributor pricing, verified drop-in grade variants, and practical design notes beyond the summary on the manufacturer datasheet.

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MAX392CSE+ - Quad SPST Analog Switch, 20 Ohm, 16-SOIC | Analog Devices
MAX392CSE+

MAX392CSE+ - Quad SPST Analog Switch, 20 Ohm, 16-SOIC | Analog Devices

The Analog Devices MAX392CSE+ is a precision quad SPST analog switch with 20 Ω typical on-resistance, 4 pC maximum charge injection and less than 1 µW of power consumption, packaged in a 16-pin SOIC (CSE) package. An analog switch, also called an analog multiplexer or solid-state relay, is a semiconductor device that routes a signal from one node to another under digital control without moving the signal physically. The MAX392 belongs to the product hierarchy analog switch > multiplexer > interface IC > integrated circuit. Each of the four independent switches in the MAX392 is a single-pole single-throw (SPST) type, so it provides a simple on/off path for analog signals rather than a multi-channel selection function. Key features of the MAX392 family include guaranteed on-resistance matching between channels below 2 Ω, on-resistance flatness over the signal range below 4 Ω, charge injection limited to 4 pC maximum, and improved off leakage of less than 2.5 nA at +85 °C. The part operates from a single +3 V to +15 V supply or from dual bipolar supplies of ±3 V to ±8 V, which allows it to sit alongside both modern low-voltage digital rails and legacy ±5 V analog instrumentation. Internally the device uses MOSFET pass elements switched by CMOS control logic, which keeps the control input compatible with standard TTL and CMOS levels. The very low power consumption of less than 1 µW per switch makes the MAX392 attractive for battery-powered and portable measurement systems where leakage and standby draw dominate the power budget. Electrostatic discharge withstand above 2000 V per Method 3015.7 protects the pins during handling and board assembly. Typical applications include precision test and measurement multiplexing, audio and low-level signal routing in instrumentation, industrial process control module switching, and general-purpose analog signal isolation in data acquisition systems. The quad SPST arrangement lets one package handle four separate signal paths, which reduces both board area and the number of control lines needed. When designing with the MAX392CSE+, pay attention to the negative rail requirement in dual-supply operation and to off-state leakage when the switched node sits near the supply rails. Place the device close to the source and destination so that trace capacitance does not degrade the small charge-injection and switching-glitch performance that make this switch precise in the first place. This page brings together parametric detail, package information, drop-in alternatives and practical design notes so that engineers can qualify the MAX392CSE+ for a precision analog switching requirement without having to piece the data together from several documents.

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MAX395EAG+ - 8-Channel Serial SPST Switch | Analog Devices
MAX395EAG+

MAX395EAG+ - 8-Channel Serial SPST Switch | Analog Devices

The Analog Devices MAX395EAG+ is a serially controlled, 8-channel single-pole single-throw analog switch with a maximum on-resistance of 100 ohm, operating from 2.7 V to 16 V and housed in a 24-pin SSOP package. Each of its eight switches can be controlled independently through a serial shift-register interface compatible with SPI, QSPI, and MICROWIRE protocols. An analog switch is a semiconductor device that routes analog or digital signals between circuit nodes under electronic control. The MAX395 combines eight SPST switches with a serial control register, placing it in the hierarchy of analog switch, multiplexer or demultiplexer, interface IC, and semiconductor. It is useful where a microcontroller or test system must address multiple signal paths while minimizing the number of dedicated control pins. The device supports single-supply operation from 2.7 V to 16 V as well as dual-supply operation from ±2.7 V to ±8 V. Its maximum on-resistance is 100 ohm, and switching times are specified at up to 400 ns. Off leakage is 0.1 nA at +25°C and 5 nA at +85°C, helping preserve the integrity of high-impedance analog nodes during disconnected intervals. The internal serial interface shifts command data into the device on the rising edge of SCLK. Data presented at DIN is clocked into the internal shift register, where it controls the states of the eight SPST channels. According to the Analog Devices product page, the MAX395 is electrically equivalent to two MAX391 quad switches and is pin compatible with the MAX335. Typical uses include battery-powered measurement systems, automated test equipment, audio routing, industrial control interfaces, and general-purpose signal multiplexing. The serial interface reduces control-logic wiring, while the eight independently controlled channels provide flexible routing across a compact PCB footprint. Designers should account for the 100 ohm channel resistance when driving the switched nodes, especially with long PCB traces or high-frequency signals. Supply bypassing, grounded return paths, and careful routing of the serial clock and data lines are necessary to limit coupling into the analog channels. The power-up state leaves all switches off and resets the internal shift registers to zero. This page summarizes the device function, operating limits, pin-compatible family relationships, selection trade-offs, and practical integration guidance. It also organizes manufacturer information and technical alternatives to support faster component evaluation and board-level sourcing decisions.

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MAX396EQI - 16:1 Precision CMOS Analog Multiplexer | Maxim
MAX396EQI

MAX396EQI - 16:1 Precision CMOS Analog Multiplexer | Maxim

The Maxim Integrated (Analog Devices) MAX396EQI is a precision 16-channel/dual 8-channel low-voltage CMOS analog multiplexer housed in a 28-pin PLCC (11.51 x 11.51 mm) package, specified over the industrial -40C to +85C temperature range. The device is built on Maxim's low-voltage CMOS process and integrates a single 16:1 mux (or two 8:1 muxes in parallel mode) with parallel address logic, making it a classic Maxim precision signal-routing building block. It is the original E-series (extended-industrial) part of the MAX396 family. What is an analog multiplexer? An analog multiplexer (mux) is a switch network that routes one of N analog input signals to a single output line under digital control. Muxes are the foundational building block of analog signal chains, sitting between sensors, test points, instrumentation amplifiers, and an ADC. The MAX396EQI specifically belongs to the CMOS analog mux family, characterized by low on-resistance, low leakage, and rail-to-rail analog signal handling - critical for instrumentation and data-acquisition front-ends. Key specifications include 100 ohm maximum on-resistance (matched within 6 ohm between channels), on-resistance flatness of 10 ohm maximum across the specified analog signal range, transition time under 250 ns, and input off-leakage current below 1 nA at +85C. These characteristics make the MAX396EQI well suited for low-distortion multiplexing of precision signals without the channel-mismatch errors that plague generic muxes. The device operates from a single +2.7V to +16V supply (or split +/- supplies), draws a low quiescent current, and provides ESD-rated inputs with TTL/CMOS-compatible address logic. Architecturally it uses charge-pump driven CMOS analog switches that keep the on-resistance flat over the analog signal range - a hallmark of Maxim's precision muxes versus competing JFET or DMOS parts. Typical applications include data-acquisition front-ends, automated test equipment (ATE) signal routing, audio signal routing, instrumentation multiplexing, and process-control analog input boards. Engineers typically pair the MAX396EQI with a precision op-amp buffer and a successive-approximation ADC to build a 16-channel low-noise analog front-end. When designing with the MAX396EQI, observe the absolute maximum analog signal range of V+ and V- rails; exceeding these destroys the switches. Use a low-ESR bypass capacitor of 0.1 uF close to the supply pin and reserve a small RC network on the address lines to suppress digital switching transients that couple into the analog path. Compared with modern pin-compatible successors, the MAX396EQI delivers superior channel matching but consumes more supply current and occupies a larger PLCC footprint than today's TSSOP muxes. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not typically consolidated on the manufacturer datasheet, helping engineers select, source, and implement the MAX396EQI more confidently.

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MAX4061EUA+ Differential Microphone Preamplifier | Maxim
MAX4061EUA+

MAX4061EUA+ Differential Microphone Preamplifier | Maxim

The Maxim Integrated MAX4061EUA+ is a 1-channel Class AB differential microphone preamplifier with adjustable gain, internal microphone bias, and complete shutdown, housed in an 8-uMAX/uSOP package. The verified distributor listing identifies it as an Amplifier IC, while the manufacturer-family description identifies the MAX4060/MAX4061/MAX4062 family as differential-input microphone preamplifiers optimized for notebook and PDA audio systems. The device is intended for portable audio signal chains where a small microphone signal must be amplified while rejecting supply and common-mode noise. A microphone preamplifier is an audio amplifier IC that receives a small differential signal from an electret or differential microphone and raises it to a level suitable for downstream audio processing. In the broader electronics hierarchy, this component belongs to amplifier ICs, audio amplifiers, microphone preamplifiers, and portable audio signal-chain devices. Its differential-input architecture helps reject noise that appears equally on both microphone inputs, while adjustable gain allows the circuit to accommodate different microphone sensitivities. The verified family description specifically highlights internal bias, excellent power-supply rejection and common-mode rejection ratios, and low-noise operation. The MAX4061EUA+ additionally includes complete shutdown according to the listed family description, supporting power management in portable equipment. The distributor result identifies the amplifier as a mono, single-channel Class AB device, which is appropriate when the system processes one microphone channel rather than a stereo pair. The MAX4061EUA+ is supplied in an 8-uMAX/uSOP package according to the verified distributor result. The verified snippets do not provide the complete electrical parameter table, gain range, supply-voltage range, input impedance, noise density, or exact pin mapping. Those values must therefore be checked against the manufacturer datasheet before final circuit design. In particular, microphone bias voltage, gain-network design, supply sequencing, and shutdown control should be validated against the specific MAX4061EUA+ datasheet rather than inferred from similar family members. Typical applications include notebook microphones, PDA audio systems, portable audio devices, differential electret-microphone front ends, and compact microphone signal conditioning. The device's internal bias can simplify microphone front-end design compared with a discrete bias network, while its differential input arrangement can improve immunity to common-mode disturbance in a compact PCB. Complete shutdown can help reduce power consumption when the audio path is inactive, although the exact shutdown timing and current values are not present in the provided web data. For implementation, place the microphone input and amplifier compensation network close to the device, keep high-impedance microphone traces short, and provide local supply decoupling. Confirm the actual pinout and exposed-pad requirements from the manufacturer datasheet before layout release. This page combines the verified distributor identification, family-level manufacturer description, package information, pricing source, and application guidance while clearly identifying unavailable technical parameters rather than guessing them.

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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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MAX458CPL - 8x4 Video Crosspoint Switch | Maxim Integrated
MAX458CPL

MAX458CPL - 8x4 Video Crosspoint Switch | Maxim Integrated

The Maxim Integrated MAX458CPL is an 8x4 video crosspoint switch with four high-speed, buffered output channels, supplied in a 40-pin plastic DIP package. It is designed for routing multiple video input signals to selectable output channels in video distribution, monitoring, and signal-routing systems. The device provides an 8-by-4 crosspoint architecture, with eight input channels and four buffered outputs, allowing several sources to be connected to the appropriate output in a controlled system. A video crosspoint switch is a routing semiconductor used to direct video signals between multiple sources and destinations. In the broader hierarchy, the MAX458CPL belongs to the interface IC family and provides a configurable signal-routing function between video sources and downstream display, processing, or monitoring equipment. Its buffered outputs are intended to preserve signal integrity when signals are routed through the switching matrix. The MAX458CPL is identified in manufacturer-related listings as the MAX458/MAX459 8x4 video crosspoint-switch family with buffers. The MAX458CPL ordering code specifies the commercial temperature grade and a 40-pin DIP package. The product is intended for through-hole PCB assembly rather than surface-mount reflow assembly. Its rectangular DIP outline provides a straightforward connection pattern for equipment with sufficient board space and a suitable through-hole footprint. Typical uses include video surveillance systems, video walls, broadcast and professional video test equipment, monitor routing, and embedded video distribution platforms. The switching matrix allows a controller to select which of eight video inputs feeds one of four buffered outputs. Designers should account for the device's legacy through-hole package, required bypassing, signal routing, grounding, and any video-level or timing constraints defined in the manufacturer datasheet. For a new design, the MAX458CPL is most appropriate when an existing 40-pin DIP footprint and an 8x4 buffered-video architecture are required. For compact or modern equipment, a surface-mount implementation may simplify board layout, but any functional substitute must be verified for pin compatibility, video bandwidth, output drive, supply requirements, control logic, and operating temperature before use. This page summarizes the available product information, package characteristics, functional architecture, sourcing details, and engineering considerations for engineers evaluating the MAX458CPL. Use the manufacturer datasheet and its pin-description table to verify signal assignments, timing, electrical limits, decoupling, and board-layout requirements before releasing a production design.

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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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