MAX350CPN

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX350CPN is a dual 4-channel serially controlled multiplexer housed in an 18-pin plastic DIP package. It operates with 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 maximum, matched between switches to 16Ω maximum, with flatness of 10Ω maximum over the signal range. It supports rail-to-rail analog signal handling and includes an asynchronous RESET input. The serial interface is compatible with SPI/QSPI and MICROWIRE standards, allowing daisy-chaining via the DOUT pin.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual 4-channel configuration with bidirectional SPST switches
• Serial interface compatible with SPI, QSPI, and MICROWIRE protocols
• Rail-to-rail signal handling capability across specified supply ranges
• Asynchronous reset function 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 component manufacturer and date code upon receipt. Confirm the part number matches the specific ordering suffix for the plastic DIP package. Check for physical damage to the leads and ensure the packaging integrity remains intact during transit to prevent contamination or mechanical stress.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX350CPN when a dual 4-channel multiplexer topology is required rather than a single 8-channel configuration. Ensure the application voltage requirements fall within the ±2.7V to ±8V dual supply or +2.7V to +16V single supply limits. Verify that the serial communication protocol aligns with the device's SPI/QSPI/MICROWIRE compatibility.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX350CPN belongs to the MAX349/MAX350 family of low-voltage multiplexers manufactured by Maxim Integrated (now Analog Devices). This series provides serially controlled analog switching solutions designed for space-constrained applications requiring multiple independent signal paths managed through a standard digital interface.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX349 serves as the single 8-channel counterpart within the same family. Direct replacement requires verifying if the circuit design accommodates the change from dual 4-channel to single 8-channel architecture. Pinout differences must be evaluated before substitution.