MAX350CWN

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX350CWN is a dual 4-channel serially controlled multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates with single supplies from +2.7V to +16V or dual supplies from ±2.7V to ±8V. The device features an on-resistance of 100Ω max, matched between switches to 16Ω max, and flat within 10Ω over the signal range. Off-leakage current is 0.1nA at +25°C. It supports SPI/QSPI/MICROWIRE interfaces, handles rail-to-rail analog signals, and includes asynchronous RESET functionality.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Serial interface compatible with SPI, QSPI, and MICROWIRE standards
• Dual 4-to-1 multiplexer configuration with bidirectional signal paths
• Rail-to-rail signal handling capability across specified supply ranges
• Asynchronous reset input for initializing switch states

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) against your design requirements. Confirm package type matches the Wide SOIC-18 footprint. Check RoHS compliance status as per the latest manufacturer documentation before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual independent 4-channel switching is required in a compact surface-mount package. Ensure the application voltage stays within the +2.7V to +16V single-supply or ±2.7V to ±8V dual-supply limits. Verify that the serial interface timing meets the microcontroller's SCLK frequency capabilities.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX350 is part of the MAX349/MAX350 family of low-voltage multiplexers. While the MAX349 provides a single 8-channel mux, the MAX350 offers two independent 4-channel muxes. Both share identical serial control logic and electrical characteristics, differing primarily in channel count and pinout configuration for the respective multiplexer topologies.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX350EWN+ is the industrial temperature grade equivalent (-40°C to +85°C). MAX350MWN+ is the military grade equivalent (-55°C to +125°C). These parts maintain functional compatibility but differ in operating temperature specifications.