Maxim Integrated MAX4742EUA Low-Voltage, Dual SPDT Analog Switch

The MAX4742EUA from Maxim Integrated is a precision, dual single-pole/double-throw (SPDT) analog switch that provides high performance in a tiny package, making it ideal for a variety of applications where space is at a premium. This analog switch operates from a single +1.8V to +5.5V supply, ensuring compatibility with a range of low-voltage systems.

Designed with advanced silicon-gate CMOS technology, the MAX4742EUA offers low on-resistance (R_ON) of just 0.6Ω (max) at +5V, which remains flat over the specified signal range (0.4Ω (max) R_ON match between channels at +5V). This feature ensures excellent linearity and low signal distortion, making it a great choice for audio and video signal routing. The low charge injection of 10pC (max) at +5V further enhances its suitability for precision applications.

The MAX4742EUA is distinguished by its low power consumption, drawing less than 1µA of supply current, which is particularly beneficial for battery-powered devices. Additionally, it features a -3dB bandwidth of 200MHz, allowing for the rapid switching of signals with minimal loss of fidelity.

This analog switch also incorporates a digital logic interface with a +1.8V to +5.5V logic supply range, which allows for direct interfacing with low-voltage logic without the need for level shifters. The MAX4742EUA's high off-isolation of -75dB at 1MHz and crosstalk of -83dB at 1MHz ensure minimal signal interference between channels.

Maxim Integrated has packaged the MAX4742EUA in a compact 8-pin µMAX package, which is highly space-efficient. The switch is specified for the extended -40°C to +85°C temperature range, making it suitable for use in challenging environmental conditions. With its combination of low-voltage operation, high bandwidth, and compact form factor, the MAX4742EUA is an excellent choice for a broad range of applications, including portable devices, data acquisition systems, communication devices, and audio/visual signal routing.