ISL28290FBZ-T7

Instrumentation, Op Amps, Buffer Amps Overview

The ISL28290FBZ-T7 is a dual-channel, ultra-low noise, rail-to-rail output operational amplifier manufactured by Renesas Electronics. It features an input voltage noise density of 1.7 nV/√Hz at 1 kHz and a typical total harmonic distortion plus noise (THD+N) of 0.00018% at 2 V peak-to-peak output. The device operates on single supplies from +3 V to +5.5 V or dual supplies from ±1.5 V to ±2.75 V. Key electrical parameters include a gain-bandwidth product of 61 MHz, a slew rate of 17 V/μs, a maximum input offset voltage of 630 μV, and an input bias current of 3 μA. It provides a common-mode rejection ratio (CMRR) of 100 dB and power supply rejection ratio (PSRR) of 80 dB. The component is housed in an 8-pin SOIC package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low input voltage noise density for high-fidelity signal processing
• Rail-to-rail output drive capability with extended ground detection input range
• Low distortion performance suitable for precision audio and measurement applications
• Stable operation with unity gain across the specified temperature range

Instrumentation, Op Amps, Buffer Amps Applications

• High-precision LVDT displacement sensor systems
• Industrial automation signal conditioning
• High-voltage GaN inverter control circuits
• Precision data acquisition front-ends

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'T7' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 8-pin SOIC package dimensions align with the target PCB footprint. Ensure the operating voltage range meets the system's power supply constraints. Check for RoHS compliance status if environmental regulations apply to the final product deployment.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low noise and low distortion are critical requirements alongside rail-to-rail output swing. It is suitable for applications requiring high bandwidth and stability without external compensation. Consider the dual-channel configuration to reduce board space compared to single-channel alternatives. Evaluate the input bias current and offset voltage specifications against the source impedance of the connected sensors.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the ISL2829x series of ultra-low noise operational amplifiers designed for demanding analog signal chain applications. The series includes single-channel variants like the ISL28191 and other dual-channel options. These devices are engineered to provide high performance in compact packages, supporting both single and dual supply architectures for versatile integration into industrial and consumer electronic designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The ISL28290FUZ is a pin-compatible alternative offered in an MSOP-8 package. Designers should verify that the thermal characteristics and physical dimensions of the MSOP-8 package fit within the existing mechanical constraints before substituting.