MAX349EAP+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX349EAP+T is a serially controlled, low-voltage, 8-channel multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates from dual supplies ranging from ±2.7V to ±8V or a single supply between +2.7V and +16V. The device features an on-resistance of 100Ω max, matched between switches to 16Ω max, with flatness of 10Ω max over the signal range. Off-leakage current is 0.1nA at +25°C. It supports SPI/QSPI/MICROWIRE interfaces, includes an asynchronous RESET input, and provides >2kV ESD protection. Operating temperature ranges from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Serially controlled 8-channel SPST switch configuration
• Compatible with SPI, QSPI, and MICROWIRE digital interfaces
• Rail-to-rail analog signal handling capability
• Asynchronous reset function for switch control

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component against official manufacturer documentation to confirm authenticity and specifications. Ensure the ordering suffix matches the required package type and temperature range. Cross-reference part numbers with authorized distributors to avoid counterfeit products. Check RoHS compliance status as indicated in the datasheet.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a serially controlled multiplexer with rail-to-rail signal handling is required. Consider the operating voltage range and interface compatibility with existing digital logic. Evaluate thermal performance and leakage characteristics for precision applications. Verify pinout and package dimensions for PCB layout integration.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX349EAP+T belongs to the MAX349/MAX350 family of serially controlled multiplexers. This series offers low-voltage operation and high-performance analog switching capabilities. The MAX349 variant specifically provides 8 channels, while the MAX350 offers dual 4-channel configurations. Both share similar electrical characteristics and interface protocols.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX349CWN is a documented alternative within the same product family, offering identical functionality but in a different package (18-SOIC) and potentially different temperature range. Verify pin compatibility and electrical specifications before substitution.