MAX4904EBL+T

Analog Switches - Special Purpose Overview

The MAX4904EBL+T is a single SPDT analog switch from the MAX4901–MAX4905 series, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a +1.8V to +5.5V supply and features low 0.6Ω typical on-resistance with 0.25Ω flatness. The device supports negative signal capability down to VCC - 5.5V without distortion. It includes internal shunt resistors for automatic discharge at NO_ and NC terminals to reduce audio click-and-pop sounds. The component utilizes a 9-bump UCSP package and functions within an extended temperature range of -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Negative rail capability allows signals below ground to pass through without distortion
• Internal shunt resistors automatically discharge capacitance at connection points to minimize audio switching artifacts
• Break-before-make switching feature further reduces popping during transitions

Analog Switches - Special Purpose Applications

• Audio signal routing in portable devices
• Headphone detection circuits
• Mute and send key functions in mobile equipment

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements and thermal management needs before finalizing procurement decisions.

Analog Switches - Special Purpose Selection Notes

Select this component when a single-pole double-throw configuration with low on-resistance is required. The integrated shunt resistor makes it suitable for audio applications where minimizing switching noise is critical. Verify that the UCSP package dimensions fit the available PCB space constraints.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX4901–MAX4905 family of low-RON switches. While the MAX4901/02 are dual SPST and the MAX4903/04/05 are single SPDT, the MAX4904 specifically provides the SPDT topology with shunt discharge capabilities but lacks the comparator found in the MAX4905 variant.

Analog Switches - Special Purpose Replacement Considerations

The MAX4903EBL-T offers identical electrical characteristics and packaging but omits the internal shunt resistor functionality.