MAX391CSE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX391CSE is a quad single-pole single-throw normally-closed analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates with a single supply voltage of 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 leakage current of 100pA maximum, and crosstalk of -85dB at 1MHz. It is housed in a 16-SOIC package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Quad SPST normally-closed configuration for signal routing
• Low on-resistance with tight channel-to-channel matching
• Ultra-low power consumption suitable for battery-operated systems
• High isolation performance with low charge injection

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered instrumentation
• Portable instruments
• Automatic test equipment
• Audio and video signal switching

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix designation when ordering, as packaging options such as tube or reel may vary. Confirm RoHS compliance status and lead times through authorized distributors. Ensure the component meets the required operating temperature range of 0°C to 70°C for the commercial grade variant.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring low power consumption and high precision signal switching. Compare on-resistance and leakage specifications against alternative switches if higher bandwidth or lower resistance is needed. Verify that the supply voltage range aligns with the system design requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX391 belongs to the Maxim Integrated CMOS analog switch family, designed for low-power applications. It complements other devices like the MAX392 (normally open) and MAX393 (SPDT). The series is widely used in industrial and consumer electronics where signal integrity and power efficiency are critical.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes include the MAX392CSE and MAX393CSE from the same manufacturer. Cross-brand alternatives should be evaluated based on pin compatibility, on-resistance, and supply voltage ranges.