ISL43143IRZ

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43143IRZ is a quad single-pole single-throw (SPST) normally-open analog switch manufactured by Renesas Electronics Corporation. It integrates four independent channels within a compact 16-pin QFN package, designed for signal routing in mixed-signal systems. The device supports a single supply voltage range of 2.7V to 12V or dual supplies of ±2.6V to ±6V. Key electrical characteristics include a maximum on-resistance of 65 ohms and a channel-to-channel matching of 2 ohms. Switching performance is defined by a maximum turn-on time of 80ns and a turn-off time of 30ns. The component operates across an extended temperature range from -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrates four independent SPST switches in a single low-profile package
• Supports flexible power supply configurations with single or dual voltage rails
• Provides precise signal path control with tight channel-to-channel resistance matching

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal multiplexing in data acquisition systems
• Audio signal routing and switching
• Video signal path selection

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'IRZ' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS compliance status. Ensure the source document explicitly lists this part number as active or qualified for new designs, as legacy suffixes may indicate obsolete variants. Cross-reference the package marking code with official silkscreen documentation to prevent counterfeit identification errors during procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a design requires four isolated analog signal paths with moderate on-resistance requirements. Verify that the system voltage does not exceed the 12V single-supply limit. Confirm that the 65-ohm on-resistance meets the signal integrity specifications for the intended application bandwidth. Evaluate the thermal dissipation capabilities of the 16-QFN package relative to the expected load current and ambient operating conditions.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the ISL4314x family of analog switches, which provides multi-channel signal routing solutions. The ISL43143 variant specifically offers four channels, distinguishing it from dual-channel or octal-channel counterparts in the same series. It shares architectural similarities with other Renesas CMOS analog switches but is optimized for general-purpose signal switching applications requiring balanced performance across multiple channels.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference material. Verify cross-compatibility with similar quad SPST switches only if the replacement datasheet confirms identical pinouts, voltage ratings, and on-resistance specifications.