ISL55143IRZ

Overview

The ISL55143IRZ is a high-speed CMOS comparator manufactured by Renesas Electronics. It features four independent channels within a single package, designed for applications requiring rapid signal processing. The device operates on a power supply voltage range of 10V to 18V. Key electrical specifications include a maximum input offset voltage of 50mV at -3V and 12V conditions, an input bias current of 0.025µA under the same conditions, and a maximum propagation delay of 15ns. The component draws a maximum static current of 12.5mA and functions reliably across a temperature range of -40°C to 85°C.

Feature Summary

• High-speed CMOS architecture optimized for fast response times
• Quad-channel configuration integrating four comparators in one unit
• Low input bias current characteristics for precision sensing

Applications

• High-speed data acquisition systems
• Precision window detection circuits
• Fast analog-to-digital converter front-ends

Procurement Notes

Verify the specific suffix 'IRZ-T' against official Renesas documentation to confirm tape-and-reel packaging status, as datasheets may list standard tube packaging. Confirm end-of-life or obsolescence status directly with the manufacturer, as distributor listings indicate potential discontinuation. Ensure the operating voltage range aligns with system requirements before procurement.

Selection Notes

Select this component when multiple independent comparison channels are required in a compact form factor. The low input bias current makes it suitable for high-impedance sensor interfaces. Verify that the 15ns propagation delay meets the timing constraints of the target application. Ensure the 10V to 18V supply range is compatible with the available power rails.

Part Context

This part belongs to the ISL551xx series of high-speed comparators from Renesas (formerly Intersil). These devices are engineered for demanding analog signal processing tasks where speed and accuracy are critical. The quad-channel variant provides a space-efficient solution compared to using discrete single-channel units.

Replacement Considerations

Consult official Renesas cross-reference guides for verified substitutes. Generic industry equivalents may not match the specific 15ns delay or 0.025µA bias current specifications.