ISL43L121IR-T

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43L121IR-T is a dual single-pole/single-throw (SPST) analog switch featuring normally closed contacts, manufactured by Renesas Electronics Corporation. It operates on a single supply voltage ranging from +1.65V to +3.6V and is housed in an 8-lead 3x3mm Thin Dual Flat No-Lead (TDFN) package. The device provides ultra-low on-resistance of 0.16Ω at 3V and 0.26Ω at 1.8V, with channel-to-channel matching of 0.005Ω. Switching times are 13ns for both turn-on and turn-off at 3V. Key electrical parameters include a maximum leakage current of 80nA, charge injection of -125pC, and off-isolation of 62dB at 100kHz.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Ultra-low on-resistance ensures minimal signal insertion loss and distortion for precision applications.
• Single-supply operation compatible with low-voltage portable battery-powered equipment.
• High-speed switching capability supports fast data acquisition and signal routing requirements.

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery powered handheld and portable equipment
• Cellular and mobile phones
• Portable test and measurement instruments

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'IR' corresponds to the TDFN package variant when sourcing. Confirm RoHS compliance status as manufacturing processes may evolve. Check for moisture sensitivity level classifications relevant to surface mount assembly procedures. Ensure the ordering code matches the required tape and reel configuration if applicable.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for designs requiring normally closed logic states within a compact footprint. Compare against the MSOP package version if thermal dissipation or board space constraints differ. Verify that the 1.65V minimum supply voltage aligns with the system's power rail capabilities during deep sleep modes.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ISL43L12X family of ultra-low resistance analog switches. The ISL43L121 specifically denotes the dual SPST configuration with normally closed contacts, distinguishing it from the NO variants in the series. It is designed to alleviate ASIC pin limitations in dense mobile electronics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

ISL43L121IU serves as the MSOP package equivalent. ISL43L121IUZ and ISL43L121IRZ represent lead-free versions of the respective packages. Cross-reference pinouts and electrical specifications before substitution.