ISL43144IR

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43144IR is a CMOS analog switch manufactured by Renesas Electronics Corporation, featuring four single-pole single-throw (SPST) normally-open channels. It operates on a single supply voltage ranging from 2.7V to 12V or dual supplies of ±2.6V to ±6V. The device provides a maximum on-resistance of 25 ohms with a channel-to-channel matching of 500 milliohms. Key electrical specifications include a maximum charge injection of 5pC, leakage current of 100pA, and switching times of 65ns for turn-on and 50ns for turn-off. It is housed in a 16-QFN (4x4) package and supports an operating temperature range of -40°C to 85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four independent SPST analog switches integrated into a single CMOS IC
• Low on-resistance of 25 ohms with tight channel-to-channel matching
• Supports flexible single or dual power supply configurations
• High isolation performance with low charge injection

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in data acquisition systems
• Audio signal path switching
• Test and measurement equipment multiplexing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

The ISL43144IR is listed as discontinued by the manufacturer. Verification of availability requires checking authorized distributors for remaining stock or obsolete inventory. Compliance status indicates non-RoHS compliance for this specific package variant. Engineers should confirm end-of-life notifications and lead times carefully before finalizing designs.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when four independent SPST switches are required within a compact footprint. Ensure the application voltage stays within the 2.7V to 12V single supply range. Verify that the 25-ohm on-resistance meets signal integrity requirements. Consider the 16-QFN package constraints for thermal management and PCB layout.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the ISL4314x series of analog switches from Renesas. It shares functional similarities with other members like the ISL43143 and ISL43145, differing primarily in switch configuration or pinout. The IR suffix denotes the 16-QFN package variant. It is distinct from digital logic devices and serves purely as an analog signal path controller.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Verify pin compatibility with potential substitutes such as the ISL43143IVZ if a different switch topology is acceptable. Check datasheets for equivalent on-resistance and voltage ratings. Since the original part is discontinued, ensure any replacement maintains the same package dimensions and electrical characteristics.