MAX4657ESA+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4657ESA+T is a single-pole/single-throw (SPST) CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a maximum on-resistance of 10Ω and supports continuous current handling of 150mA with peak currents up to 300mA. The device operates within a supply voltage range of ±4.5V to ±20V for dual supplies or +9V to +40V for single-supply configurations. It utilizes an 8-pin SOIC package and functions over a temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High-current switching capability designed for loads as low as 25Ω
• Rail-to-rail signal handling with TTL/CMOS logic compatibility
• Low power consumption of approximately 3mW in both states

Analog Switches, Multiplexers, Demultiplexers Applications

• Relay replacement in high-speed applications
• Audio signal routing and PBX systems
• Test equipment and communication systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm that the 'ESA' designation corresponds to the standard SOIC-8 package without an exposed paddle, which affects thermal dissipation capabilities compared to EP variants. Ensure the ordering code matches the normally closed configuration unique to the MAX4657 series.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring high continuous current switching within a compact surface-mount footprint. Consider the 10Ω on-resistance and 150mA limit when designing for low-impedance loads. Verify that the single-supply or dual-supply requirements align with the specified operating voltage ranges before finalizing the design.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4655–MAX4658 family of medium-voltage CMOS analog switches. The MAX4657 variant specifically provides a normally closed (NC) configuration, distinguishing it from the normally open MAX4656/MAX4658 counterparts. All members share similar electrical characteristics but differ in default switch state and package power dissipation ratings.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet confirms pin compatibility with the DG417 and DG418 devices. Designers replacing these parts should verify that the substitute meets the 150mA continuous current requirement and maintains the same SPST NC functionality.