ISL28291FUZ-T7

Instrumentation, Op Amps, Buffer Amps Overview

The ISL28291FUZ-T7 is a dual-channel, ultra-low noise voltage feedback operational amplifier manufactured by Renesas Electronics. It features a gain-bandwidth product of 1 MHz and a slew rate of 17 V/us. The device operates on a single supply voltage ranging from 3 V to 5.5 V with a typical quiescent current of 7 mA per channel. Key electrical specifications include an input offset voltage of 630 uV, an input bias current of 6 uA, and an input voltage noise density of 1.7 nV/sqrt Hz. It provides a common-mode rejection ratio of 100 dB and a power supply rejection ratio of 74 dB. The output can source up to 130 mA. The component is housed in a 10-pin MSOP package and supports operation across a temperature range of -40 C to +125 C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low input voltage noise density for high-fidelity signal processing
• Rail-to-rail output capability extending to ground detection
• High slew rate supporting fast transient response
• Stable unity-gain configuration without external compensation

Instrumentation, Op Amps, Buffer Amps Applications

• Precision LVDT displacement measurement systems
• High-accuracy sensor signal conditioning
• Low-noise audio preamplifiers
• Medical instrumentation front-ends

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'T7' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure the operating environment remains within the specified -40 C to +125 C range. Check for moisture sensitivity level requirements during storage and handling. Validate pin compatibility with existing PCB footprints before integration.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring low noise and high speed within a dual-channel form factor. Compare against single-channel variants if only one amplifier is needed to optimize board space. Consider the 130 mA output drive capability for driving moderate loads directly. Evaluate the 1 MHz bandwidth against higher-speed alternatives if frequency response exceeds requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the ISL28291 series of ultra-low noise operational amplifiers. It serves as the dual-channel counterpart to the single-channel ISL28191. Both share similar electrical characteristics including 1.7 nV/sqrt Hz noise and 17 V/us slew rate. The series is designed for precision analog signal chains where low distortion and high accuracy are critical.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional compatibility with any potential replacements regarding pinout, electrical parameters, and thermal performance.