MAX349EWN

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX349EWN is an 8-channel serially controlled analog multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates within a single supply voltage range of +2.7V to +16V or dual supplies from ±2.7V to ±8V, supporting rail-to-rail analog signals. The device features a maximum on-resistance of 500Ω at +3V and 100Ω at +5V, with channel matching limited to 16Ω. Switching speeds include a maximum turn-on time of 600ns and turn-off time of 300ns at +3V. It utilizes an SPI/QSPI/MICROWIRE-compatible serial interface and functions within an industrial temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Serially controlled architecture compatible with SPI, QSPI, and MICROWIRE standards
• Bidirectional signal paths handling rail-to-rail analog inputs
• Asynchronous reset input for initializing switch states

Analog Switches, Multiplexers, Demultiplexers Applications

• Serial data-acquisition systems
• Industrial and process-systems control
• Audio signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'W' against official documentation to confirm package type and temperature grade. Confirm RoHS compliance status as indicated in current manufacturer records. Ensure compatibility with existing system power rails before integration.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when bidirectional switching and low leakage are required. Verify that the operating voltage aligns with the specified single or dual supply ranges. Consider the serial interface timing requirements relative to the host processor's clock speed.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX349 family of low-voltage multiplexers. It provides eight individually controllable SPST switches within a single integrated circuit. The series is designed for applications requiring flexible analog signal routing with minimal external components.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX349CWN: Commercial temperature variant (0°C to +70°C). MAX349MWN: Military temperature variant (-55°C to +125°C). MAX350: Dual 4-channel configuration.