MAX4657ESA+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4657ESA+ is a single-pole/single-throw (SPST) CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply range of ±4.5V to ±20V for dual supplies or +9V to +40V for single supplies, supporting a maximum voltage differential of 40V. The device features a maximum on-resistance of 10Ω at ±15V supplies and handles up to 300mA peak current with 150mA continuous current capability. It exhibits a typical -3dB bandwidth of 210MHz and low charge injection of 1pC. The component is housed in an 8-pin SOIC package and functions as a normally closed switch, controlled by TTL/CMOS compatible logic inputs.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High-current handling capability designed for switching loads as low as 25Ω
• Rail-to-rail signal handling with minimal power consumption regardless of state
• TTL/CMOS compatible digital control input for direct interfacing
• Normally closed configuration providing default connectivity without power

Analog Switches, Multiplexers, Demultiplexers Applications

• Relay replacement in systems requiring high speed and unlimited lifetime cycles
• Audio signal routing and audio system interconnects
• Test equipment signal path switching
• Communication systems and xDSL modems
• Redundant or backup system configurations

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'ESA+' corresponds to the 8-pin SOIC package variant. Confirm that the normally closed (NC) configuration aligns with the circuit design requirements, as this differs from the normally open MAX4656 variant. Ensure power supply sequencing adheres to datasheet recommendations to prevent overvoltage stress during startup.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4657ESA+ when a normally closed analog switch is required for high-current applications. Compare the 150mA continuous current rating against load requirements, noting it is lower than the MAX4655/MAX4656 variants. Verify that the 10Ω on-resistance specification meets the signal integrity needs at the intended operating voltage and temperature range.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4655–MAX4658 family of medium-voltage CMOS analog switches. The family shares identical pinouts and electrical characteristics except for the switch state (normally closed vs. normally open) and specific power dissipation limits associated with different package types. The MAX4657 specifically denotes the normally closed version in the standard SOIC package.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4657ESA+ is pin-compatible with the DG417. Designers replacing legacy parts should verify that the substitute supports the required 150mA continuous current and 10Ω on-resistance specifications.