ISL43L122IRZ-T

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43L122IRZ-T is a dual single-pole/single-throw (SPST) analog switch manufactured by Renesas Electronics Corporation. It features one normally open and one normally closed channel, enabling SPDT functionality within an 8-lead thin dual flat no-lead (TDFN) package. The device operates on a single supply voltage ranging from +1.65V to +3.6V. At a 3V supply, the typical on-resistance is 0.17Ω with a maximum of 0.25Ω at 25°C. Switching speeds are characterized by turn-on and turn-off times of 15ns typical and 25ns maximum at 3V. The component supports bidirectional signal transmission and includes digital control inputs compatible with 1.8V logic levels.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPST configuration providing mixed normally open and normally closed switching capabilities for flexible signal routing
• Ultra-low on-resistance ensures minimal insertion loss and distortion in precision analog signal paths
• High-speed switching performance suitable for high-frequency applications up to hundreds of megahertz
• Low power consumption design optimized for battery-powered portable equipment

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery powered handheld and portable electronic devices
• Cellular and mobile phone circuitry
• Portable test and measurement instruments
• Medical equipment requiring low-power signal switching
• Audio and video signal routing systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix IRZ-T against the manufacturer's current datasheet FN6091.2 to confirm package type and tape-and-reel availability. Ensure compliance with RoHS standards and moisture sensitivity classifications prior to procurement. Cross-reference the part number with official distributor catalogs to validate authenticity and manufacturing origin.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a single IC must provide both normally open and normally closed switching functions. Verify that the required analog signal range falls within the single-supply limits of 1.65V to 3.6V. Confirm that the 8-lead TDFN package dimensions fit the available board space constraints compared to MSOP alternatives.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the ISL43L12X family of ultra-low on-resistance analog switches. It shares electrical characteristics with the ISL43L120 and ISL43L121 but differs in internal switch configuration. The family is designed for low-voltage, single-supply applications where board space and power efficiency are critical constraints.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The ISL43L122IUZ serves as a direct replacement offering identical electrical specifications in an 8-lead MSOP package. Substitution requires verification of footprint compatibility between the TDFN and MSOP packages.