ISL43142IV

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43142IV is a CMOS quad analog switch from the Intersil ISL43140 series, housed in a 16-pin TSSOP package. It integrates four single-pole/single-throw (SPST) switches configured as two normally open and two normally closed contacts, enabling dual SPDT or 2:1 multiplexer functionality. The device operates on a single supply of +2V to +12V or dual supplies of ±2V to ±6V. Key electrical parameters include a maximum on-resistance of 50Ω, channel-to-channel matching under 2.5Ω, and low power consumption of less than 1μW. Switching speeds are characterized by a maximum turn-on time of 30ns and turn-off time of 18ns.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrates four independently controlled SPST switches with mixed normally open and normally closed configurations for flexible signal routing.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered equipment requiring low power consumption
• Dual SPDT signal switching applications
• 2:1 multiplexer implementations

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity through authorized Renesas or Intersil distributors due to potential availability constraints. Confirm the specific IV suffix indicates industrial temperature range operation within the TSSOP-16 package. Request original manufacturer documentation to validate RoHS compliance and ensure the part matches the specified quad SPST configuration before integration into production designs.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when design requirements demand mixed normally open and normally closed channels within a single package. The ISL43142 variant is distinct from the ISL43140 (all NC) and ISL43141 (all NO). Ensure the operating voltage stays within the 2V to 12V single supply range. Verify that the 50Ω on-resistance meets the signal integrity needs of the target application circuit.

Analog Switches, Multiplexers, Demultiplexers Part Context

The ISL43142IV belongs to the ISL43140 family of low-voltage, high-performance analog switches. This series is designed for precision applications benefiting from low charge injection and fast switching times. The device serves as a pin-compatible alternative to legacy parts like the DG412, offering improved performance in a compact surface-mount footprint suitable for space-constrained electronic systems.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The ISL43142IV is pin-compatible with the DG412. Verify that substitute components maintain the same mixed NO/NC channel configuration and meet the required 50Ω on-resistance specifications for direct replacement in existing designs.