ISL28291FUZ

Instrumentation, Op Amps, Buffer Amps Overview

The ISL28291FUZ is a dual-channel, ultra-low noise voltage feedback operational amplifier manufactured by Renesas Electronics. It operates on a single supply voltage ranging from 3V to 5.5V and features rail-to-rail output capability with input common-mode voltage extending to the negative rail (ground detect). The device exhibits a gain-bandwidth product of 1 MHz, a slew rate of 17 V/µs, and an input voltage noise density of 1.7 nV/√Hz at 1 kHz. Key electrical specifications 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. It provides an output current of 130 mA per channel and functions within a temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low input voltage noise density of 1.7 nV/√Hz for high-fidelity signal processing
• Rail-to-rail output swing with input common-mode voltage extending to ground
• Low total harmonic distortion plus noise (THD+N) of 0.00018% at 1 kHz
• Stable unity-gain operation with wide operating voltage range

Instrumentation, Op Amps, Buffer Amps Applications

• High-precision LVDT displacement measurement systems
• Industrial automation sensor interfaces
• Portable battery-powered instrumentation
• Medical equipment signal conditioning

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'FUZ' corresponds to the MSOP-10 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the component meets the required industrial temperature grade (-40°C to +125°C) for your specific application environment. Cross-reference the manufacturer part number with the distributor's catalog to avoid confusion with similar series members like the ISL28191.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring low noise and high precision in a dual-channel configuration. It is suitable where rail-to-rail output is necessary but input does not require full rail-to-rail swing. Consider the ISL28191 if only a single channel is needed. Evaluate power consumption requirements against the 7 mA operating current per amplifier. Ensure the 1 MHz bandwidth is sufficient for the signal frequencies involved.

Instrumentation, Op Amps, Buffer Amps Part Context

The ISL28291 belongs to the ISL28191/ISL28291 family of ultra-low noise, low distortion operational amplifiers. This family is designed for high-performance analog signal processing tasks. The ISL28291 specifically offers two channels in compact packages such as MSOP-10, UTQFN, and SOIC-8, providing flexibility for space-constrained designs while maintaining high electrical performance standards.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The ISL28191 serves as a functional single-channel alternative within the same family. Verify pinout compatibility and package dimensions before substitution. No other direct cross-model replacements are confirmed in the provided data.