MAX4646EUA+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4646EUA+T is a single-pole, single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a +1.8V to +5.5V single supply and features a typical on-resistance of 2.5Ω at +5V. The device handles rail-to-rail analog signals with an off-leakage current of 0.25nA maximum at +25°C. It exhibits fast switching speeds, including a turn-on time of 15ns maximum and a turn-off time of 10ns maximum. The component is housed in an 8-pin µMAX package and supports an operating temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Supports rail-to-rail analog signal processing within the supply voltage range.
• Provides low distortion characteristics suitable for precision applications.
• Features TTL/CMOS logic compatibility for straightforward interface integration.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered systems requiring low-voltage operation
• Audio and video signal routing circuits
• Low-voltage data-acquisition systems
• Sample-and-hold circuits
• Communications circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure that the procurement channel provides valid traceability for the component. Cross-reference the manufacturer part number with authorized distributor listings to confirm authenticity and compliance with current manufacturing standards before finalizing acquisition.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally closed SPST configuration is required for low-voltage signal paths. Consider the 2.5Ω on-resistance and 0.25nA leakage specifications for signal integrity requirements. Evaluate the 8-pin µMAX package dimensions against available board space constraints. Confirm that the operating temperature range meets the environmental conditions of the target application.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4645/MAX4646 family of fast, low-voltage CMOS analog switches. The MAX4646 variant specifically functions as a normally closed switch, contrasting with the normally open MAX4645. Both share identical electrical characteristics and package options, differing primarily in their default switch state and logic input behavior.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4645 serves as a functional alternative if a normally open switch configuration is acceptable. Verify pinout compatibility and ensure that the normally closed state of the MAX4646 does not conflict with the circuit's initial power-up requirements.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the default state of the MAX4646 switch?

The MAX4646 is a normally closed (NC) switch, meaning the connection between COM and NC is established when the logic input is low.

Can the MAX4646 handle signals exceeding the supply voltage?

No, the device processes analog signals within the supply voltage range (GND to V+). Signals exceeding these limits are clamped by internal diodes.

What is the maximum off-leakage current specification?

The off-leakage current is specified as a maximum of 0.25nA at +25°C.