ISL43L121IRZ

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43L121IRZ is a dual single-pole single-throw normally-closed analog switch manufactured by Renesas Electronics. It operates on a single supply voltage ranging from 1.65V to 3.6V. The device features a maximum on-resistance of 250 milliohms and a channel-to-channel matching of 5 milliohms. Switching times are limited to 25ns for both turn-on and turn-off. Key electrical parameters include a charge injection of -125pC, off-state leakage current of 3nA, and crosstalk of -94dB at 100kHz. It is housed in an 8-MSOP package and supports an operating temperature range of -40°C to 85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPST-NC configuration providing two independent signal paths within a compact surface-mount package.
• Low on-resistance characteristic ensuring minimal signal attenuation across the conduction path.
• Ultra-low charge injection capability designed to preserve signal integrity during switching transitions.

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in portable battery-powered instrumentation
• Audio signal path switching in consumer electronics
• Data acquisition systems requiring low distortion

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as the part may not meet current environmental standards. Validate package markings against official datasheet specifications to prevent counterfeit substitution.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual normally-closed switching is required under low-voltage conditions. Ensure the application tolerates the specified 250 milliohm on-resistance. Verify that the 8-MSOP footprint aligns with existing PCB layout constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ISL43L12x family of analog switches. It shares functional similarities with the ISL43L120 and ISL43L122, differing primarily in contact configuration. The manufacturer has transitioned from Intersil to Renesas Electronics Corporation.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate pin-compatible alternatives only after verifying electrical parameter equivalence.