ISL28156FBZ-T7

Instrumentation, Op Amps, Buffer Amps Overview

The ISL28156FBZ-T7 is a micropower precision operational amplifier featuring rail-to-rail input and output capabilities. It operates on a single supply voltage ranging from 2.4V to 5.5V or dual supplies of ±1.2V to ±2.5V. The device draws a typical supply current of 39µA when enabled and 10µA when disabled. Key electrical specifications include a gain bandwidth product of 250kHz, a maximum input bias current of 5nA, and an input offset voltage of up to 120µV in the SOIC package. It includes an enable pin for power management.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Features an Input Range Enhancement Circuit (IREC) allowing input voltages to exceed the positive supply rail while maintaining common-mode rejection ratio performance.
• Includes a dedicated enable pin that allows the device to be disabled for low-power standby modes, facilitating multiplexer configurations with tied outputs.
• Provides full rail-to-rail input and output swing capability, extending input range up to 0.5V beyond the positive supply and within 10mV of the negative rail.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery- or solar-powered systems
• 4mA to 20mA current loops
• Handheld consumer products
• Medical devices
• Sensor amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'T7' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm the 'FBZ' designation indicates the 8-lead SOIC package variant. Ensure compliance with RoHS standards and lead-free reflow profiles as specified in the manufacturer's documentation before finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring ultra-low quiescent current combined with precision DC accuracy. The device is suitable for designs needing input signals that may slightly exceed the positive supply rail. Consider the thermal resistance characteristics of the SOIC package when calculating junction temperatures under heavy load conditions to ensure operation within safe limits.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the ISL28156 family of micropower precision op amps manufactured by Renesas Electronics Corporation (formerly Intersil). The FBZ suffix specifically denotes the 8-lead Small Outline Integrated Circuit (SOIC) package configuration. The T7 suffix indicates the unit is supplied in a tape and reel format for surface-mount technology assembly.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet. The document explicitly states 'NO RECOMMENDED REPLACEMENT' and advises contacting Technical Support for alternatives.