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MAX3490EEPA+ - 12Mbps RS-485 Transceiver | Analog Devices
MAX3490EEPA+

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.

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MAX3490EESA+ - 12Mbps RS-485/RS-422 Transceiver | Analog Devices
MAX3490EESA+

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.

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MAX3490EPA+ - 10Mbps RS-485/RS-422 Transceiver | Analog Devices
MAX3490EPA+

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.

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MAX3490ESA+ - 3.3V 10Mbps RS-485/RS-422 Transceiver
MAX3490ESA+

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+.

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MAX3490ESA+T - 10Mbps Full-Duplex RS-485/422 | Analog Devices
MAX3490ESA+T

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.

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MAX350EWN+ - Dual 4:1 Serial Multiplexer | Analog Devices
MAX350EWN+

MAX350EWN+ - Dual 4:1 Serial Multiplexer | Analog Devices

The Analog Devices MAX350EWN+ is a serially controlled, low-voltage CMOS analog multiplexer configured as two independent 4:1 switches in an 18-pin wide SOIC package. It operates from 2.7 V to 16 V and provides a maximum on-resistance of 100 ohm, with channel-to-channel matching limited to 16 ohm and resistance variation across the specified signal range limited to 10 ohm. The MAX350EWN+ conducts signal equally well in either direction, allowing it to route analog inputs or outputs through a serial interface. An analog multiplexer is a semiconductor that connects one signal path to one of several channels through controlled switches. The MAX350 family extends this category to the hierarchy of analog switch, multiplexer, routing IC, and signal-management semiconductor. Its 4:1 dual configuration provides two separately selectable channel groups, making it suitable for channel-scanning systems where multiple sensors, measurement inputs, or controlled outputs share a common signal chain. Key features include serial control, bidirectional signal conduction, low-voltage CMOS operation, and tightly matched switch resistance. The 100 ohm maximum on-resistance limits signal attenuation, while the 16 ohm maximum channel-to-channel match improves consistency when comparing readings across different channels. Its 18-pin wide SOIC package also provides a practical surface-mount footprint for industrial and instrumentation designs. The device uses a serial interface to select channels and control the multiplexers, reducing the number of package pins needed compared with a parallel-control multiplexer. This architecture is valuable in systems that route several slow or moderate-bandwidth analog signals, particularly when the microcontroller has limited general-purpose input/output capacity. Typical applications include multimeter and laboratory input switching, automated test equipment, data-acquisition modules, sensor-channel multiplexing, and control of multiple analog signal paths. The MAX350EWN+ is appropriate when bidirectional analog routing and matched resistance are more important than ultra-low on-resistance or high-speed video multiplexing. When laying out the circuit, keep analog traces short and connect the device to a stable low-noise supply. Confirm the serial interface levels and logic thresholds against the system controller, and verify that every switched signal remains within the specified analog input range. Check the full on-resistance and off-isolation characteristics in the manufacturer datasheet when the signal source is high impedance.

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MAX35103EHJ+ Reduced-Power ToF Converter | Analog Devices
MAX35103EHJ+

MAX35103EHJ+ Reduced-Power ToF Converter | Analog Devices

The Analog Devices MAX35103EHJ+ is a reduced-power time-to-digital converter with an integrated analog front end, real-time clock, and flash memory, specified for a 2.3 V to 3.6 V supply in a 32-pin TQFP (5 mm × 5 mm) package. It targets ultrasonic heat, water, and gas meters and increases the maximum time-of-flight measurement frequency in event timing mode from 2 Hz on the MAX35101 to 16 Hz. A time-to-digital converter, or ToF converter, measures the elapsed time represented by an ultrasonic pulse by converting a timing event into a digital result. The MAX35103 integrates the pulse-generation, receive-signal conditioning, timing, clock, and nonvolatile-measurement functions required by a compact ultrasonic metering front end. This integration reduces external circuitry compared with a discrete timer and analog receive chain while preserving a path to low-cost, low-power meter designs. According to the manufacturer datasheet, the MAX35103 consumes about half the average power of the MAX35101. The supplied sources do not provide a numeric average-current value, oscillator accuracy, ToF resolution, measurement range, flash capacity, temperature range, or absolute timing accuracy, so those values require confirmation in the datasheet or device evaluation before design release. The listed operating supply range is 2.3 V to 3.6 V. The integrated real-time clock and flash support metering designs that need timekeeping and persistent measurement data alongside ultrasonic time-of-flight conversion. The 16 Hz maximum event-timing frequency is particularly relevant when the meter must update more frequently than the MAX35101. Firmware, calibration, echo detection, and time-of-digital compensation still determine achievable accuracy and must be evaluated with real transducers and meter mechanics. Typical uses include ultrasonic heat meters, water meters, and gas meters. An Analog Devices evaluation kit installs the MAX35103EHJ+ and includes a USB-to-SPI interface plus graphical software for exercising device functionality. The supplied distributor records list the MAX35103EHJ+ in a 32-TQFP package and identify it as a CMOS-input, CMOS-output time-to-digital converter IC. For PCB design, place decoupling and timing-critical paths according to the manufacturer layout guidance and keep the ultrasonic analog front end away from switching nodes and digital return-current paths. Validate transducer drive amplitude, receive gain, threshold timing, clock calibration, and flash endurance under the intended flow, temperature, and supply conditions. Do not infer production suitability from the general-purpose EV kit alone.

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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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