MAX4427CSA+

Overview

The MAX4427CSA+ is a dual single-pole double-throw (SPDT) analog switch manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates on a single supply voltage ranging from 4.5V to 36V or a dual supply of ±4.5V to ±18V. The device features an on-resistance of 175 ohms maximum and a channel-to-channel matching of 500 milliohms. It includes two independent switching circuits in an 8-SOIC package, with a charge injection of 1pC and off-state leakage current of 500pA maximum.

Feature Summary

• Dual SPDT analog switching configuration
• Low on-resistance for signal integrity
• High voltage operation capability
• Precision channel matching

Applications

• Signal routing in data acquisition systems
• Multiplexing applications
• Phase reversal detection circuits
• Instrumentation front ends

Procurement Notes

Verify component authenticity through authorized distributors due to discontinued status. Confirm RoHS compliance details as original specifications may vary. Check for direct replacement availability such as the MAX4527CSA+ variant. Ensure packaging matches project requirements for surface mount assembly processes.

Selection Notes

Evaluate on-resistance stability across temperature ranges for precision applications. Consider leakage current limits for high-impedance signal paths. Assess package thermal performance for sustained operation. Verify logic input compatibility with system control voltages before integration into final design.

Part Context

This component belongs to the MAX4526/27 family of phase-reversal analog switches. It provides reliable switching for analog signals within industrial and instrumentation environments. The device supports both single and dual power supply configurations for flexible system design integration.

Replacement Considerations

MAX4527CSA+ is listed as a direct substitute part number.