ISL43841IRZ-T

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43841IRZ-T is a dual 4-to-1 multiplexer analog switch manufactured by Renesas Electronics Corporation. It operates from single +2V to +12V or dual ±2V to ±6V supplies. The device features a latch bar pin to lock the last switch address and supports rail-to-rail analog signals. Key electrical parameters include an ON resistance of 50Ω maximum at ±5V supply, charge injection of 1pC maximum, and off-leakage current of 2.5nA maximum. Switching times are 38ns for turn-on and 19ns for turn-off at +5V. It utilizes a 20-lead 4x4mm QFN package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual 4:1 multiplexer configuration with integrated latch functionality
• Compatible with TTL and CMOS logic levels across various supply voltages
• Capable of handling full rail-to-rail analog signal ranges
• Provides high off-isolation and low crosstalk performance

Analog Switches, Multiplexers, Demultiplexers Applications

• Telecom infrastructure and ADSL/VDSL modems
• Medical imaging systems including MRI and CT scanners
• Audio and video signal routing networks
• Sample and hold circuits and operational amplifier gain switching

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the manufacturer part number against official Renesas documentation to confirm authenticity. Ensure the component matches the specified 20-QFN package dimensions and lead finish requirements. Check for RoHS compliance status as indicated in the ordering information section of the datasheet.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring precise analog signal switching with minimal distortion. Consider the specific ON resistance values at your operating voltage, as performance varies between 3.3V and 12V supplies. Ensure the digital control logic meets the required voltage thresholds for reliable operation.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the Intersil ISL43841 family of precision analog switches. It is designed for high-performance multiplexing tasks where low charge injection and fast switching speeds are critical. The inclusion of a latch feature simplifies control logic in complex switching matrices.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Consult the manufacturer's cross-reference data for verified substitute part numbers. Ensure any replacement maintains compatibility with the 20-QFN footprint and meets the same electrical specifications for on-resistance and leakage currents.