MAX4737EUD+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4737EUD+ is a quad single-pole/single-throw (SPST) 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 4.5Ω at +3V and 3Ω at +5V. The device offers 0.4Ω maximum on-resistance matching, 1.2Ω flatness, and less than 0.5nA leakage current. It provides a 300MHz -3dB bandwidth, high off-isolation of -55dB at 10MHz, and low crosstalk of -80dB at 10MHz. The component utilizes rail-to-rail signal handling and CMOS-logic compatible inputs within a 14-pin TSSOP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Designed for USB 1.1 and audio switching applications with guaranteed operation across the full voltage range
• Features low on-resistance with minimal variation between channels and across the signal range
• Provides high off-isolation and low crosstalk to maintain signal integrity in dense layouts
• Supports rail-to-rail signal handling with CMOS-logic compatible digital control inputs

Analog Switches, Multiplexers, Demultiplexers Applications

• USB 1.1 data line switching
• Audio signal routing and multiplexing
• Signal conditioning circuits requiring low distortion
• Portable equipment with single-supply constraints

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the manufacturer part number against official Analog Devices documentation to confirm authenticity. Ensure the ordering suffix matches the required package type and temperature range specifications. Cross-reference RoHS compliance status using the datasheet's ordering information table. Confirm pinout compatibility with the target PCB footprint before integration.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a quad SPST configuration with low on-resistance is required for single-supply systems. Consider the MAX4738 or MAX4739 variants if normally closed contacts or mixed NO/NC configurations are needed instead of the standard normally open topology provided here.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the MAX4737/MAX4738/MAX4739 family of low-voltage analog switches. The series is characterized by its UCSP and TSSOP packaging options, designed specifically for maintaining signal integrity in high-speed digital interfaces like USB while operating at low supply voltages.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers: MAX4738EUD+, MAX4739EUD+. These variants share identical electrical characteristics but differ in contact configuration.