ISL28191FHZ-T7

Instrumentation, Op Amps, Buffer Amps Overview

The ISL28191FHZ-T7 is a single-channel, voltage feedback operational amplifier manufactured by Renesas Electronics Corporation. It features ultra-low noise and low distortion characteristics with a gain-bandwidth product of 1 MHz and a slew rate of 17 V/µs. The device operates on a single supply voltage ranging from 3 V to 5.5 V, consuming 3.5 mA of quiescent current per channel. It provides rail-to-rail output swing and supports input common-mode voltages extending to the negative rail (ground detection). Key electrical parameters include a maximum input offset voltage of 630 µV, an input bias current of 6 µA, and a typical common-mode rejection ratio of 100 dB.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low noise performance with 1.7 nV/√Hz input voltage noise density at 1 kHz
• Rail-to-rail output capability with ground detection for extended input common-mode range
• Low total harmonic distortion plus noise (THD+N) of 0.00018% at 1 kHz
• Stable unity-gain operation suitable for direct drive applications

Instrumentation, Op Amps, Buffer Amps Applications

• High-precision LVDT displacement measurement systems
• Industrial automation signal conditioning circuits
• Battery management system sensing interfaces
• Medical instrumentation front-end amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'T7' corresponds to the required tape and reel packaging configuration during procurement. Confirm that the SOT-23-6 package variant matches the intended PCB footprint design. Ensure the component meets RoHS compliance requirements as specified in the official datasheet documentation before finalizing supply chain agreements.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low noise and high speed are prioritized over ultra-low power consumption. The 1 MHz bandwidth and 17 V/µs slew rate make it suitable for moderate-speed precision applications. Consider the 3.5 mA supply current against available power budgets. The SOT-23-6 package offers space efficiency but requires careful thermal management if driving heavy loads near the maximum current rating.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the ISL2819x family of ultra-low noise, low distortion operational amplifiers designed for precision analog signal processing. The family includes single-channel (ISL28191) and dual-channel (ISL28291) variants. These devices are engineered to provide high performance in compact packages, addressing the needs of portable and space-constrained electronic systems requiring accurate signal amplification.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct pin-compatible substitutes within the same series include the ISL28291 for dual-channel requirements. Verify functional equivalence regarding noise specifications and bandwidth when considering alternative manufacturers. Check for any differences in package dimensions or thermal characteristics if replacing with non-Renesas equivalents.