MAX4639ETE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4639ETE+T is a dual 4:1 CMOS analog multiplexer/demultiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +1.8V to +5.5V supply or dual ±2.5V supplies. The device features a typical on-resistance (RON) of 3.5Ω at +5V and 6Ω at +3V, with a maximum RON match of 0.4Ω between channels. Switching times are specified as 18ns for turn-on and 7ns for turn-off. The -3dB bandwidth reaches 85MHz, while off-isolation is -75dB and crosstalk is -85dB. Leakage currents are guaranteed at 0.25nA at +25°C. It utilizes standard BCD decoding logic and includes an enable input.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual 4:1 multiplexing architecture supporting bidirectional signal routing
• Rail-to-Rail analog signal handling capability across the full supply range
• TTL/CMOS-logic compatible control inputs with standard BCD decoding
• Guaranteed break-before-make switching to prevent channel overlap

Analog Switches, Multiplexers, Demultiplexers Applications

• Automatic Test Equipment
• Low-Voltage Data-Acquisition Systems
• Audio and Video Signal Routing
• Medical Equipment
• Battery-Powered Equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and RoHS compliance status. Ensure the exposed pad connection requirements for the TQFN package are addressed in the PCB layout design. Confirm that the operating voltage range aligns with the system's power supply specifications before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual-channel 4:1 multiplexing function is required within low-voltage systems. The device is suitable for applications demanding high bandwidth and low leakage current. Consider the 16-pin TQFN-EP package constraints regarding thermal dissipation and exposed pad connectivity during the initial circuit design phase.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4638/MAX4639 family of low-voltage analog multiplexers. While the MAX4638 provides a single 8:1 configuration, the MAX4639 offers a dual 4:1 topology. Both share identical electrical characteristics and pinout compatibility across various packages, allowing for flexible design integration based on channel count requirements.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same series include the MAX4639EUE+T (16-TSSOP) and MAX4639ESE+T (16-SO). These alternatives maintain identical electrical performance but differ in physical package dimensions and mounting style.