MAX4903ETA+TG05

Analog Switches - Special Purpose Overview

The MAX4903ETA+T is a single SPDT analog switch from the MAX4901–MAX4905 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +1.8V to +5.5V supply and features low 0.6Ω typical on-resistance (RON). The device supports negative signal capability, allowing signals below ground to pass without distortion. It includes break-before-make switching and internal shunt resistors to automatically discharge capacitance at NO and NC terminals, reducing click-and-pop sounds in audio applications. The component is housed in an 8-pin TDFN package and operates over a temperature range of -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Negative rail capability for distortion-free signal throughput
• Internal shunt resistors for automatic discharge of connection points
• Break-before-make switching feature
• Low on-resistance with high flatness

Analog Switches - Special Purpose Applications

• Audio signal switching
• Headphone detection circuits
• Mute/send key functions
• Portable devices such as cell phones and PDAs

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. Confirm RoHS compliance status through current datasheets before finalizing procurement orders.

Analog Switches - Special Purpose Selection Notes

Select this model when a single-pole double-throw configuration is required for low-voltage analog signal routing. Consider the internal shunt resistor functionality if minimizing audio artifacts during switching is critical. Verify that the 8-pin TDFN package fits within the available PCB footprint constraints.

Analog Switches - Special Purpose Part Context

This component belongs to the MAX4901–MAX4905 series of low-RON, clickless switches. The series includes dual SPST and single SPDT variants. The MAX4903 specifically provides the SPDT configuration without the comparator found in the MAX4905 variant.

Analog Switches - Special Purpose Replacement Considerations

Direct substitutes within the same family include the MAX4903EBL-T (UCSP package) or other SPDT variants like the MAX4904/MAX4905 if additional features are needed.