ISL43L122IRZ

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43L122IRZ 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, housed in an 8-lead Thin Dual Flat No-Lead (TDFN) package measuring 3x3 mm. The device operates on a single supply voltage ranging from +1.65V to +3.6V. At a 3.0V supply, the typical ON resistance is 0.16Ω with turn-on/off times of 13ns. At 1.8V, the ON resistance increases to 0.26Ω with switching times of 30ns/25ns. The part supports bidirectional signal transmission, exhibits low power consumption, and maintains an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Combines one normally open and one normally closed SPST switch within a single dual-channel configuration.
• Provides ultra-low ON-resistance and high flatness for precise signal reproduction with minimal distortion.
• Operates efficiently on a single low-voltage supply suitable for battery-powered portable applications.

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 component status as discontinued or obsolete through official manufacturer channels before finalizing procurement plans. Confirm that the specific ordering suffix corresponds to the required lead-free RoHS compliant packaging and thermal profile requirements for your assembly process.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this model when a mixed logic state (NO and NC) is required in a compact footprint. Ensure the system supply voltage aligns with the desired ON-resistance performance, noting that lower voltages increase resistance and switching times. Verify that the 8-TDFN package dimensions fit the available PCB land pattern constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the ISL43L12X family of ultra-low ON-resistance analog switches. It shares core electrical characteristics with the ISL43L120 and ISL43L121 but differs in internal switch configuration. The 'IR' suffix indicates the 8-lead TDFN package, while the 'Z' suffix denotes Pb-free plus anneal manufacturing compliant with RoHS standards.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers include ISL43L120IRZ and ISL43L121IRZ. Note that these alternatives offer different switch configurations (two NO or two NC channels) compared to the mixed NO/NC setup of the ISL43L122IRZ.