LT1491IS#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1491IS#PBF is a quad micropower operational amplifier featuring rail-to-rail input and output capabilities. It operates on total supply voltages ranging from 2V to 44V, drawing a maximum of 50µA per amplifier. The device provides high output current of 20mA and maintains unity-gain stability while driving capacitive loads up to 10,000pF with optional compensation. Key electrical specifications include a gain bandwidth product of 200kHz, large-signal voltage gain of 1500V/mV, and common mode rejection ratio of 98dB. It includes reverse battery protection up to 18V and functions without phase reversal.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output operation across the full supply range
• Micropower consumption with quiescent current as low as 40µA per amplifier
• High output drive capability supporting 20mA load currents
• Reverse supply protection allowing safe operation during negative voltage events

Instrumentation, Op Amps, Buffer Amps Applications

• Battery or solar-powered systems
• Portable instrumentation
• Sensor conditioning circuits
• Supply current sensing
• Micropower active filters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IS#PBF against the manufacturer's official documentation to confirm package type and lead-free status. Ensure compatibility with the required operating temperature range and supply voltage constraints before integration into the design.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs requiring low power consumption alongside high voltage tolerance. Consider the LT1491A series for new designs due to improved offset voltage specifications compared to the standard LT1491 variant.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1490/LT1491 family of dual and quad micropower op amps. The LT1491 specifically denotes the quad configuration housed in a 14-lead SOIC package. It shares architectural similarities with the LT1490 but offers four independent amplifiers within a single integrated circuit.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

For new designs, the datasheet recommends using the LT1491A instead of the LT1491.