ISL28278FAZ-TZ

Instrumentation, Op Amps, Buffer Amps Overview

The ISL28278FAZ-TZ is a dual-channel general-purpose operational amplifier manufactured by Intersil. It features rail-to-rail output capability and operates within a supply voltage range of 2.4 V to 5 V. The device exhibits a gain-bandwidth product of 400 kHz, an input offset voltage of 100 µV, and a slew rate of 0.15 V/µs. Input voltage noise density is specified at 30 nV/√Hz, with a power supply rejection ratio of 90 dB. Operating current is 156 µA. It is housed in a 16-lead QSOP package and supports an operating temperature range from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output for improved dynamic range
• Dual-channel configuration for multi-circuit applications
• Low distortion amplification via defined slew rate

Instrumentation, Op Amps, Buffer Amps Applications

• Precision signal conditioning
• Battery-powered instrumentation
• Data acquisition systems

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the manufacturer designation as Intersil or Renesas Electronics Corporation on official documentation. Confirm the 16-QSOP package type and lead-free/RoHS compliance status. Ensure the suffix TZ indicates the specific tape-and-reel packaging variant. Cross-reference the part number against current discontinuation notices or lifecycle notifications provided by the manufacturer.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when dual-channel operation with rail-to-rail output is required under low-voltage conditions. The 400 kHz bandwidth and 100 µV offset voltage suit moderate precision applications. Verify that the 156 µA quiescent current aligns with power constraints. Ensure the 16-lead QSOP footprint fits the target PCB layout and thermal requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the ISL2827x series of precision amplifiers. It shares architectural similarities with other members like the ISL28276, differing primarily in channel count and package options. The series targets applications requiring balanced performance between speed and power consumption in compact surface-mount formats.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct pin-compatible alternatives within the ISL2827x family. Verify electrical parameter equivalence for critical specs such as offset voltage and bandwidth before substitution.