آیسیهای رابط
زیردستهها
محصولات (3,000+)
MAX3490CSA+ - 3.3V 10Mbps RS-422/RS-485 | Analog Devices
The Analog Devices MAX3490CSA+ is a 3.3V-powered, 10Mbps RS-422/RS-485 interface transceiver in an 8-pin SOIC package. It combines one driver and one receiver for bidirectional differential data links and supports the low-voltage supply range stated in the manufacturer datasheet. The MAX3490 family is intended for industrial, instrumentation, and embedded communication systems where a compact differential interface is required. An RS-422/RS-485 transceiver is an interface IC that converts between logic-level digital signals and balanced differential signals on a communication bus. RS-422 commonly supports point-to-point, full-duplex links, while RS-485 commonly supports multipoint, half-duplex networks. The MAX3490 combines both interface standards in one device, with separate driver and receiver sections and direction control handled by the host logic. The MAX3490CSA+ is identified as a 3.3V-powered, 10Mbps, slew-rate-limited, true RS-485/RS-422 transceiver. Its low-power 3.3V operation suits modern controller platforms and reduces supply demand compared with legacy 5V interface designs. The 10Mbps capability makes it relevant for factory equipment, data acquisition, industrial controllers, and other systems requiring a higher-speed differential serial interface. The device uses one driver and one receiver, allowing a compact implementation of a full-duplex RS-422 connection or a half-duplex RS-485 connection with external direction control. Differential signaling improves noise immunity over single-ended links and helps support reliable communication over longer cables when the bus is properly terminated and laid out. For RS-485 networks, place termination resistors at the physical ends of the bus, bias the idle differential state appropriately, and keep transceiver stub branches short. For RS-422 links, use the receiver and driver pins associated with the intended full-duplex topology and confirm the manufacturer pin configuration before PCB release. Designers should verify supply voltage, driver enable polarity, receiver enable polarity, common-mode limits, cable length, termination, and transceiver direction timing against the MAX3490 datasheet. This page combines verified manufacturer and distributor information, commercial sourcing context, and practical interface-design guidance for evaluating the MAX3490CSA+.
MAX3490CSA+T 3.3V 10Mbps RS-485/RS-422 Transceiver | Analog Devices
The Analog Devices MAX3490CSA+T is a 3.3V-powered, half-duplex RS-485/RS-422 transceiver with one driver and one receiver, supporting data rates up to 10Mbps in an 8-pin SOIC package. Its low-power architecture is designed for industrial communication links where a compact interface is required for bidirectional serial data. An RS-485/RS-422 transceiver is an interface IC that converts logic-level signals into balanced differential line signals and converts received differential signals back into logic levels. RS-485 supports multipoint buses with bidirectional communication, while RS-422 provides a point-to-point differential link. The MAX3490CSA+T belongs to the interface IC family within the broader semiconductor and industrial-control hierarchy. Key features include operation from a 3.0V to 3.6V supply, a maximum data rate of 10Mbps, one driver and one receiver, and slew-rate-limited operation for reduced EMI and reflection control. The device also includes short-circuit protection and thermal shutdown according to the manufacturer product information. Its 8-SOIC package supports conventional surface-mount PCB assembly. The MAX3490CSA+T uses true differential RS-485/RS-422 signaling, allowing communication over longer cable runs than single-ended interfaces while improving noise immunity. The receiver supports fail-safe operation when the bus is idle, and the driver places its output in a high-impedance state during thermal shutdown. These characteristics suit industrial controllers, instrumentation, data acquisition systems, and factory automation equipment. Typical applications include industrial sensor networks, RS-485 motor-control links, building automation equipment, test and measurement instruments, and embedded control systems. The 3.3V supply is convenient for systems built around modern low-voltage processors, while the 10Mbps capability supports higher-speed factory and data-acquisition links. For PCB design, place the transceiver close to the connector and route the balanced differential pair as a controlled-impedance pair. Connect the bus termination and biasing components according to the system topology, and keep the ground reference continuous between the transceiver and cable interface. Verify the supply voltage, idle-bus behavior, and cable length before releasing the design. This product page combines the manufacturer’s MAX3490 technical information with practical selection guidance, application positioning, and package-level design considerations. It is intended to help engineers identify the correct transceiver for low-voltage, high-speed RS-485 and RS-422 interfaces without conflating protocol requirements, electrical termination, and PCB layout decisions.
MAX3490ECPA - 12Mbps RS-485 Transceiver | Maxim Integrated
The Maxim Integrated MAX3490ECPA is a 3.3 V-powered, ±15 kV ESD-protected RS-485/RS-422 transceiver that supports data rates up to 12 Mbps and uses an 8-pin PDIP package. The device combines one driver and one receiver in a single package, with slew-rate-limited operation intended to reduce unwanted signal transitions on unbalanced communication lines. An RS-485/RS-422 transceiver is an interface IC that converts logic-level signals into differential bus voltages and converts received differential voltages back into digital logic. The MAX3490ECPA belongs to the MAX3483E family of low-power transceivers designed for industrial, instrumentation, and data-communication links where both long-distance noise immunity and compact integration are important. The principal operating characteristics include a 3.3 V supply, ±15 kV ESD protection, operation at up to 12 Mbps, and slew-rate-limited true RS-485/RS-422 operation. Its one-driver/one-receiver configuration supports point-to-point and multidrop network arrangements when the bus topology, termination, and grounding strategy are designed correctly. The 8-pin PDIP package also supports conventional through-hole PCB assembly and prototyping. Slew-rate limiting reduces the rate at which the differential driver changes state, limiting high-frequency energy that can couple into adjacent circuitry. This behavior is particularly useful on long cables or in systems where reducing edge-related ringing and crosstalk is more important than maximizing data rate. The device should still be evaluated with the intended cable length, topology, termination network, and grounding arrangement. Typical applications include industrial control networks, instrumentation links, data acquisition systems, building automation equipment, and point-to-point data communications. The MAX3490ECPA is appropriate when the system uses 3.3 V logic, requires integrated transmit and receive functions, and can tolerate the operating-speed limitations of a through-hole PDIP package. For a new design, confirm the exact driver-enable and receiver-enable polarity, supply decoupling, bus termination, and fail-safe behavior against the manufacturer pin description and datasheet before fabrication. Place the device near the bus connector when practical to minimize unprotected trace length and reduce ESD exposure. This product record combines the manufacturer’s family-level functional information, package details, operating characteristics, and practical interface design guidance. It also provides drop-in family alternatives, comparison parameters, and application-focused engineering context to support component selection before schematic capture.
MAX3490EEPA+ - 12Mbps RS-485 Transceiver | Analog Devices
Analog Devices MAX3490EEPA+ is a 3.3 V-powered, slew-rate-limited RS-485/RS-422 transceiver with a maximum data rate of 12 Mbps and ±15 kV ESD protection, packaged in an 8-pin PDIP. It is designed for industrial, instrumentation, communications, and data-acquisition systems that require a true differential transceiver rather than a single-ended RS-232 interface. An RS-485 transceiver is an interface IC that combines a differential line driver with a differential receiver, allowing information to be transmitted reliably over longer cable runs than a single-ended interface. The MAX3490EEPA+ belongs to the broader hierarchy of interface ICs, communication transceivers, physical-layer devices, and semiconductors. Its differential signaling supports noise-resistant communication between equipment located at different ground potentials. The principal operating characteristics are a 3.3 V supply, a 12 Mbps maximum data rate, ±15 kV ESD protection, and slew-rate-limited outputs. The 12 Mbps capability permits the device to handle high-speed command, control, data, and instrumentation links. Slew-rate limiting reduces the high-frequency content of driver transitions, which helps limit electromagnetic interference and reduces the potential for reflections and data errors on suitable bus layouts. This device supports both RS-485 and RS-422 communication modes. RS-485 is commonly used for multidrop buses connecting multiple nodes, while RS-422 is commonly used for point-to-point or limited-driver configurations. The MAX3490EEPA+ combines these functions in one transceiver package, allowing the same physical interface circuit to be configured according to the system’s grounding and bus topology. Typical uses include industrial control systems, test and measurement equipment, building automation, data-acquisition units, motor-control systems, and industrial communications adapters. The 8-pin PDIP package is also convenient for prototyping and systems assembled through through-hole insertion rather than surface-mount automation. PCB implementation should preserve the transceiver’s high-speed signal integrity. Route the differential bus as a closely coupled pair, terminate the line at appropriate physical endpoints, and avoid adding unnecessary stubs. Place the transceiver close to the connector and keep ground returns short. The manufacturer datasheet remains the controlling reference for pin assignments, supply decoupling, driver enable behavior, receiver enable behavior, and absolute maximum ratings. This product page combines the exact manufacturer and distributor identifiers, separates functionally useful alternatives by package and data rate, and adds implementation guidance for evaluating the MAX3490EEPA+ in a new RS-485 or RS-422 design.
MAX3490EESA+ - 12Mbps RS-485/RS-422 Transceiver | Analog Devices
The Analog Devices MAX3490EESA+ is a 3.3 V, single-channel RS-485/RS-422 transceiver with one driver, one receiver, 12 Mbps maximum data rate, and ±15 kV ESD protection in an 8-pin SOIC package. Its slew-rate-limited driver supports reliable point-to-point and multidrop industrial communication while helping reduce cable reflections and electromagnetic interference. The MAX3490EESA+ is identified as a production part by the manufacturer. An RS-485/RS-422 transceiver is an interface IC that converts logic-level signals into balanced differential bus signals and converts received differential signals back into logic levels. It belongs to the communication-interface hierarchy: transceiver → RS-485/RS-422 interface IC → interface IC → integrated circuit. These transceivers are designed for longer-distance, noise-resistant data links than single-ended interfaces, making them suitable for industrial equipment, building controls, instrumentation, and long cable runs. The MAX3490EESA+ combines 12 Mbps operation with 3.3 V power operation. Its one-driver, one-receiver arrangement allows a node to transmit and receive data, although the driver and receiver enable functions determine the operating direction. The manufacturer describes the MAX3490E family as slew-rate-limited, true RS-485/RS-422 devices with ±15 kV ESD protection. The 8-pin SOIC package supports compact surface-mount layouts while exposing the standard transceiver functions needed for balanced bus implementations. At the system level, the MAX3490EESA+ bridges a host controller or programmable logic and a differential communication bus. The receiver evaluates the difference between the two bus conductors, providing common-mode rejection for a noise-affected industrial environment. The differential bus also enables ground-potential differences between connected equipment to be tolerated within the interface's specified operating limits. The exact common-mode range, receiver thresholds, and electrical limits must be confirmed in the manufacturer datasheet before final sign-off. Typical uses include industrial control links, factory automation equipment, building-automation nodes, test and measurement systems, and embedded data acquisition. The 12 Mbps capability is useful when a design must transfer short, high-volume data bursts over a modest cable distance rather than operate as a slow long-distance field bus. The part can also pair with isolation or interface components when a design requires galvanic separation, surge protection, or additional bus transceivers. Designers should verify the differential-impedance-controlled trace and cable geometry, provide the bus termination specified by the system architecture, and connect the transceiver reference or common-mode network according to the manufacturer application guidance. Placement near the connector can reduce exposure of sensitive receive paths to radiated and conducted noise. Decoupling should also follow the datasheet recommendations, while ESD protection should be evaluated at the connector rather than assumed to replace an external protection network. This product page consolidates the verified manufacturer, distributor, and cross-reference information with practical selection guidance, packaging details, interface comparisons, and application notes. It is intended to help engineers identify the correct 8-SOIC transceiver while separating documented parameters from values that still require datasheet confirmation.
MAX3490EPA+ - 10Mbps RS-485/RS-422 Transceiver | Analog Devices
The Analog Devices MAX3490EPA+ is a 3.3V-powered, full-duplex RS-485/RS-422 transceiver with one driver and one receiver, a maximum data rate of 10Mbps, and an 8-pin PDIP package. It operates from a 3V to 3.6V supply and is designed for low-power industrial communication links. According to the verified product data, the device supports RS-485 and RS-422 interfaces, uses slew-rate-limited signaling, and includes short-circuit and thermal protection on the driver. An RS-485/RS-422 transceiver is an interface IC that converts digital logic-level signals into differential bus signals and converts received differential signals back into CMOS-compatible data. These differential links are used in industrial automation, instrumentation, building controls, and data communications because they are more resistant to common-mode noise than single-ended interfaces. The MAX3490EPA+ belongs to the transceiver class within interface ICs and supports point-to-point or multipoint differential communication architectures. The principal verified features include one driver and one receiver, full duplex operation, a 3V to 3.6V supply range, and operation up to 10Mbps. The MAX3490EPA+ is identified as a true RS-485/RS-422 transceiver, while the slew-rate-limited driver helps control edge rates and reduce unwanted reflections and EMI. The verified distributor listing also identifies the package as 8-pin PDIP and lists the device as a 1/1 transceiver. The device is suited to interfaces where low-voltage digital control communicates with a field bus over a cable. Its 10Mbps capability can support high-speed data transfer, industrial control links, and equipment-to-equipment communication. The driver’s short-circuit current limiting and thermal shutdown protection help protect the output stage when a bus fault or improper termination creates excessive output stress. Applications must still observe the manufacturer’s absolute maximum ratings and recommended external-circuit requirements. For PCB implementation, use the 8-pin PDIP footprint and route the differential bus with controlled impedance when cable length, data rate, or EMI requirements justify it. Keep transceiver supply bypassing close to VCC and GND, connect the receiver and driver interface pins according to the datasheet, and select termination appropriate to the cable topology. The verified operating temperature range is -40°C to 85°C, making the part suitable for industrial temperature environments when the surrounding system requirements are met. This page consolidates verified manufacturer and distributor information, pricing references, interface selection guidance, and practical design notes for engineers evaluating the MAX3490EPA+. It does not infer unverified electrical parameters; unavailable values are explicitly marked for follow-up against the manufacturer datasheet.
MAX3490ESA+ - 3.3V 10Mbps RS-485/RS-422 Transceiver
The Maxim Integrated MAX3490ESA+ is a 3.3V low-power RS-485/RS-422 transceiver with one driver and one receiver, designed for data rates up to 10Mbps and housed in an 8-SOIC package. According to the verified product data, it is slew-rate limited and supports true RS-485 and RS-422 communication. The low 3.3V supply makes it suitable for industrial control, instrumentation, communications, and embedded systems where a compact differential interface is required. An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into differential signals for reliable communication over wired networks. In this product category, the transmitter drives a differential bus, while the receiver converts the differential bus voltage back into a logic-level signal. RS-422 commonly supports point-to-point communication, while RS-485 supports multipoint bus arrangements. The MAX3490ESA+ combines these functions in one package, reducing the number of external interface components. The verified listing identifies the MAX3490 family as 3.3V, low-power transceivers for RS-485 and RS-422 communication. The MAX3490 device is listed by Analog Devices as a 3.3V-powered, 10Mbps, slew-rate-limited, true RS-485/RS-422 transceiver. The + suffix denotes the lead-free ordering configuration commonly shown by distributors, while the exact package and suffix conventions should be confirmed against the manufacturer ordering guide before production release. Slew-rate limiting helps control the transition speed of the driver, reducing electromagnetic interference and cable reflections associated with faster edges. This is particularly useful when the transceiver drives longer cables or imperfectly terminated buses. The 10Mbps capability supports high-speed point-to-point links, but cable length, topology, termination, grounding, and signal integrity must be evaluated as a complete system rather than treated as an isolated IC specification. Typical applications include industrial RS-485 links, building and factory automation, data acquisition equipment, motor-control systems, security equipment, and embedded communications modules. The 3.3V supply is convenient for systems using 3.3V microcontrollers, DSPs, FPGAs, or other digital controllers. Designers should verify voltage levels, driver and receiver enable timing, bus termination, protection requirements, and operating-temperature limits against the manufacturer datasheet before release. The primary design consideration is ensuring the transceiver operates within the electrical limits of the intended bus. Differential routing should use controlled impedance where practical, the ground reference should be maintained, and unused inputs should not be left floating. This page combines the verified manufacturer and distributor information with practical application guidance, packaging information, and engineering selection criteria for evaluating the MAX3490ESA+.
MAX3490ESA+T - 10Mbps Full-Duplex RS-485/422 | Analog Devices
The Analog Devices MAX3490ESA+T is a 3.3V-powered, low-power RS-485/RS-422 transceiver with one driver and one receiver in an 8-pin SOIC package. It supports data rates up to 10Mbps, operates from 3V to 3.6V, and is designed for full-duplex industrial communications. The tape-and-reel ordering code identifies the lead-free MAX3490ESA variant supplied on carrier tape. An RS-485/RS-422 transceiver is an interface IC that converts between single-ended logic-level signals and differential bus signals. Differential signaling reduces susceptibility to common-mode noise and allows reliable data transfer over longer cables. In the broader hierarchy, the MAX3490 belongs to the RS-485/RS-422 transceiver family within interface ICs and wired-communication semiconductors. Key features include a 10Mbps maximum data rate, 3V to 3.6V supply operation, full-duplex communication, and an integrated driver and receiver. The manufacturer describes the MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 as 3.3V low-power transceivers for RS-485 and RS-422 communication. These devices support industrial-control, instrumentation, data-acquisition, and factory-automation links where robust differential signaling is required. The MAX3490 provides separate transmit and receive paths for full-duplex operation, allowing the transmitter and receiver to remain active simultaneously. Its 8-SOIC surface-mount package supports compact PCB layouts, while the 3.3V supply simplifies interfacing with modern microcontrollers, field-programmable gate arrays, sensors, and industrial controllers. The exact receiver enable, driver enable, and bus-failover behavior should be confirmed against the manufacturer datasheet for the specific ordering variant before schematic sign-off. Typical applications include full-duplex RS-485 links between industrial controllers and remote I/O modules, point-to-point RS-422 interconnects in test equipment, factory-floor sensor networks, and embedded control systems. Compared with half-duplex transceivers that multiplex the driver and receiver onto the same bus pins, a full-duplex implementation can simplify timing and remove the need for software-managed bus turnaround. Designers should account for bus termination, fail-safe biasing, cable length, and grounding when using the MAX3490ESA+T. Differential buses normally require termination resistors at both ends of the cable, while bias resistors may be required to keep the bus in a defined state when no driver is active. Decoupling capacitors should be placed close to the supply and ground pins, and unused inputs should not be left floating. This page consolidates manufacturer product information, distributor pricing references, verified substitute candidates, pin-level guidance, and practical RS-485 design notes into one engineering-oriented resource. It also identifies which same-package alternatives are documented as pin-compatible replacements and where additional manufacturer verification is required.
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.
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.
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.
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.
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.
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.
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.
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.
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+.
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.
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.
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.
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.
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.
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.
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.