MAX4657EUA+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4657EUA+ is a single-pole/single-throw (SPST) CMOS analog switch in an 8-pin µMAX package, operating within a -40°C to +85°C temperature range. It features a normally closed configuration with a maximum on-resistance of 10Ω at ±15V supplies and 22Ω at +12V single supply. The device supports continuous currents up to 150mA and peak currents up to 300mA. Power supply ranges include ±4.5V to ±20V for dual supplies or +9V to +40V for single-supply operation. Key electrical parameters include off-leakage current of 10nA max, turn-on time of 300ns max, and off-isolation of -77dB typical at 1MHz.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High-current handling capability with 150mA continuous and 300mA peak ratings
• Low on-resistance of 10Ω maximum under standard dual-supply conditions
• TTL/CMOS compatible digital control input for direct logic interfacing
• Rail-to-rail analog signal switching across the full power-supply range

Analog Switches, Multiplexers, Demultiplexers Applications

• Relay replacement in systems requiring high speed and long life cycles
• Audio signal routing and audio system switching
• Test equipment signal path management
• Communication systems and xDSL modems
• PC multimedia boards and PBX/PABX systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the ordering suffix 'EUA' corresponds to the 8-pin µMAX package and industrial temperature range (-40°C to +85°C). Confirm that the '+' suffix indicates lead-free compliance as per manufacturer standards. Ensure the design accounts for the specific pinout where Pin 8 is NC (No Connect) for this normally closed variant. Check absolute maximum ratings against system voltage peaks to prevent damage.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4657EUA+ when a normally closed SPST switch is required with high current capacity. Compare the 150mA continuous current limit against load requirements; if higher current is needed, consider the MAX4655 series. Verify that the 10Ω on-resistance meets signal integrity needs. Ensure the µMAX package size fits the PCB layout constraints compared to SO or TDFN alternatives.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4655–MAX4658 family of medium-voltage CMOS analog switches. The MAX4657 variant is distinguished by its normally closed state and lower current rating compared to the MAX4655. It shares pin compatibility with DG417/DG418 devices. The family offers various package options including TDFN, SO, and µMAX, with exposed paddle variants available for enhanced thermal performance in high-power applications.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet explicitly states pin compatibility with DG417 and DG418 devices. Designers replacing these parts should verify that the DG417's electrical characteristics, particularly on-resistance and current handling, meet the application requirements. No other substitute part numbers are listed in the official documentation.