MAX391CSE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX391CSE+ is a precision, quad single-pole single-throw normally-closed analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 3V to 15V or dual supplies of ±3V to ±8V. The device features a maximum on-resistance of 35 ohms and a channel-to-channel matching of 300 milliohms. Switching times are specified at a maximum of 130ns for turn-on and 75ns for turn-off. Key electrical characteristics include a charge injection of 2pC, off-state channel capacitance of 9pF, and an off-state leakage current of 100pA maximum. Crosstalk is rated at -85dB at 1MHz. It is housed in a 16-SOIC package with a width of 3.90mm.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Quad SPST normally-closed configuration for precise signal routing
• Low on-resistance with tight channel-to-channel matching for signal integrity
• Ultra-low charge injection and leakage current for high-fidelity switching
• Wide single and dual power supply compatibility

Analog Switches, Multiplexers, Demultiplexers Applications

• Precision data acquisition systems requiring low distortion
• Audio signal path switching and multiplexing
• Instrumentation front-end signal conditioning
• Telecommunications equipment signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature range. Ensure the ordering part number matches the required tape-and-reel or tube packaging variant. Confirm RoHS compliance status through the manufacturer's certification documents before finalizing procurement specifications.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally-closed state is required for the quiescent condition. Compare on-resistance values against system loss budgets. Verify that the 35-ohm resistance meets the voltage drop requirements for the target application signals. Check supply voltage ranges to ensure compatibility with existing power rails.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX391 series of precision analog switches. It shares the same functional block as the MAX392, which differs primarily in its normally-open configuration. Both devices utilize the same CMOS process technology and offer similar electrical performance metrics within the 16-SOIC footprint.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX392CSE is a direct functional substitute if a normally-open configuration is acceptable. Verify pinout compatibility and electrical parameter alignment before substitution.