ISL28433FVZ-T7A

Overview

The ISL28433FVZ-T7A is a quad micropower, zero-drift operational amplifier manufactured by Renesas Electronics. It features chopper stabilization to minimize offset voltage drift over temperature and time. The device offers a gain-bandwidth product of 400 kHz and a slew rate of 200 mV/us. Key electrical specifications include an input offset voltage of 6 uV, input bias current of 250 pA, and input voltage noise density of 65 nV/sqrt Hz. It operates on a single supply voltage ranging from 1.8 V to 5.5 V with a typical operating supply current of 20 uA per channel.

Feature Summary

• Chopper-stabilized architecture for ultra-low offset voltage and drift
• Rail-to-rail input and output capability
• Micropower consumption optimized for battery-operated systems

Applications

• Precision sensor signal conditioning
• Medical instrumentation
• Industrial process control

Procurement Notes

Verify the specific suffix T7A indicates tape-and-reel packaging when ordering. Confirm the component status as obsolete or end-of-life through official Renesas channels before finalizing design-in decisions. Ensure compatibility with existing PCB footprints for the 14-lead SOIC package.

Selection Notes

Select this component for applications requiring high DC precision without external trimming. The quad configuration reduces board space compared to discrete solutions. Consider the 400 kHz bandwidth limit for AC signal processing requirements. Verify power supply constraints align with the 1.8 V to 5.5 V operating range.

Part Context

This part belongs to the ISL28x33 family of chopper-stabilized amplifiers. It serves as the quad-channel variant within the series, complementing dual-channel options like the ISL28233. The family is designed for high-precision analog signal chains in low-power environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-compatible alternatives should be sourced through official Renesas obsolescence notices or authorized distributor cross-reference tools.