ISL28433FBZ

Overview

The ISL28433FBZ is a quad micropower, chopper-stabilized operational amplifier featuring rail-to-rail input and output capabilities. It offers an input offset voltage of 6 µV, a gain-bandwidth product of 400 kHz, and a slew rate of 200 mV/µs. The device operates on supply voltages ranging from 1.8 V to 6 V with a quiescent current of 50 µA per channel. It functions within a temperature range of -40°C to +125°C and is housed in an SOIC-8 package.

Feature Summary

• Chopper stabilization technology eliminates low-frequency noise and drift for high precision.
• Rail-to-rail input and output stages maximize dynamic signal range at low voltages.
• Micropower architecture enables extended battery life in portable applications.

Applications

• Precision sensor signal conditioning
• Portable medical instrumentation
• Battery-powered data acquisition systems

Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS directives and check for any recent lifecycle status updates or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when ultra-low offset voltage and drift are critical alongside minimal power consumption. The quad configuration reduces board space compared to dual-channel alternatives. Verify that the 400 kHz bandwidth meets the system's frequency response requirements.

Part Context

This part belongs to the ISL28233/ISL28433 family of zero-drift amplifiers. It serves as the four-channel counterpart to the dual-channel ISL28233, sharing identical electrical characteristics and pinout compatibility within the same package footprint.

Replacement Considerations

The ISL28233FBZ is a verified two-channel substitute within the same family. Cross-reference datasheets to ensure the reduced channel count aligns with circuit design requirements.