MAX4685ETB+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4685ETB+T is a dual single-pole/double-throw (SPDT) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +1.8V to +5.5V supply and features a maximum on-resistance of 0.8Ω for both normally open and normally closed switches at a +2.7V supply. The device provides rail-to-rail signal handling, 1.8V logic compatibility, and low crosstalk of -68dB at 100kHz. It utilizes a 10-pin TDFN package with an exposed pad, measuring 3mm x 3mm, and supports an operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPDT configuration with break-before-make switching action
• Rail-to-rail signal handling capability across the full supply voltage range
• Low on-resistance of 0.8Ω maximum for both NO and NC switches
• 1.8V logic compatible digital control inputs

Analog Switches, Multiplexers, Demultiplexers Applications

• Speaker headset switching
• Audio and video signal routing
• Power routing in battery-operated equipment
• Relay replacement circuits
• Communications circuits and PCMCIA cards

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity through authorized distributors or direct manufacturer channels. Confirm that the ordering suffix matches the required package type and temperature rating. Ensure compliance with RoHS standards as indicated by the lead-free designation. Cross-reference the datasheet revision history to confirm the specific manufacturing batch aligns with current quality specifications.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual-channel analog switch with low on-resistance is required for portable applications. The MAX4685ETB+T is suitable for designs needing rail-to-rail signal transmission under a single supply voltage. Consider the 10-pin TDFN package constraints regarding thermal dissipation and PCB layout requirements for the exposed pad connection.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4684/MAX4685 family of low-voltage analog switches. The MAX4685 variant specifically offers symmetrical on-resistance for both switch poles, distinguishing it from the asymmetrical MAX4684. Both devices share identical pinouts and electrical characteristics except for the on-resistance values of the normally closed switch.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes include the MAX4684ETB+T for applications requiring asymmetrical on-resistance. Other compatible options within the same series are the MAX4685EBC+T and MAX4685EUB+T, which offer different packaging formats such as UCSP and µMAX while maintaining equivalent electrical performance.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum on-resistance for the MAX4685ETB+T?

The MAX4685ETB+T has a maximum on-resistance of 0.8Ω for both the normally open and normally closed switches at a +2.7V supply.

Does the MAX4685ETB+T support 1.8V logic levels?

Yes, the digital logic inputs are 1.8V logic-compatible, allowing operation with a +2.7V to +3.3V supply.

What is the package type for the MAX4685ETB+T?

The MAX4685ETB+T is packaged in a 10-pin Thin-Dual Flat No-lead (TDFN) package with an exposed pad, measuring 3mm x 3mm.