MAX349CWN+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX349CWN+ is an 8-channel serially controlled multiplexer in an 18-pin Wide SO package. It operates with dual supplies from ±2.7V to ±8V or a single supply between +2.7V and +16V. The device features a maximum on-resistance of 100Ω, matched to 16Ω max, with flatness of 10Ω max over the signal range. Operating temperature ranges from 0°C to +70°C. Key electrical parameters include turn-on time up to 275ns, turn-off time up to 150ns, off-leakage current of 0.1nA at +25°C, and supply current of 72µA typical.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• SPI/QSPI/MICROWIRE-compatible serial interface
• Rail-to-rail analog signal handling
• Asynchronous RESET input for power-up initialization

Analog Switches, Multiplexers, Demultiplexers Applications

• Serial Data-Acquisition Systems
• Industrial and Process Control Systems
• Audio Signal Routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix CWN against official documentation to confirm the 18-Wide SO package and commercial temperature range (0°C to +70°C). Ensure compatibility with existing board layouts and logic voltage levels before finalizing orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when an 8-channel multiplexer with bidirectional signal paths and low on-resistance is required. Verify that the application supports the specified single or dual supply voltages and that the operating temperature falls within the commercial range.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX349/MAX350 family of serially controlled multiplexers. The MAX349 variant provides a single 8-to-1 mux configuration, whereas the MAX350 offers dual 4-to-1 muxs. Both share identical control logic and electrical characteristics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Check for pin-compatible alternatives such as the MAX349EAP+T if extended temperature ranges are needed. Verify that any substitute maintains the same serial interface protocol and on-resistance specifications.