MAX4902ETA+T

Analog Switches - Special Purpose Overview

The MAX4902ETA+T is a dual single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a +1.8V to +5.5V supply voltage and features low on-resistance of 0.6Ω typical. The device supports negative signal capability, allowing signals below ground to pass without distortion. It includes internal shunt resistors for automatic discharge at NO terminals to reduce audio click-and-pop sounds. The component operates over an extended temperature range of -40°C to +85°C and is housed in an 8-pin TDFN package.

Analog Switches - Special Purpose Feature Summary

• Dual SPST configuration with low on-resistance
• Negative rail capability for undistorted signal throughput
• Internal shunt resistors for clickless switching
• Break-before-make switching action

Analog Switches - Special Purpose Applications

• Audio signal routing in portable devices
• Headphone detection circuits
• Mute and send key functions
• PDAs and handheld devices
• Notebook computers

Analog Switches - Special Purpose Procurement Notes

Verify the ordering suffix matches the required package type and tape/reel specifications. Confirm RoHS compliance status as indicated in the official documentation. Ensure the supplier provides valid traceability for the Analog Devices/Maxim Integrated brand. Check for any specific handling requirements related to the TDFN package during assembly.

Analog Switches - Special Purpose Selection Notes

Select this component when dual independent analog switching is required within a compact footprint. The integrated shunt resistors make it suitable for audio applications where minimizing switching noise is critical. Verify that the supply voltage range aligns with the system design and that the negative signal capability meets the input signal requirements.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX4901–MAX4905 family of low-RON, clickless switches. The MAX4902 specifically offers a dual SPST topology with built-in shunt resistors, distinguishing it from the MAX4901 which lacks these resistors. It shares the same package and electrical characteristics as other variants in the series but differs in internal circuitry regarding discharge capabilities.

Analog Switches - Special Purpose Replacement Considerations

The MAX4901ETA-T is a direct alternative if internal shunt resistors are not required. Other family members like the MAX4903 or MAX4904 offer different topologies such as SPDT configurations.