LT1490AHS8#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1490AHS8#TRPBF is a dual micropower rail-to-rail input and output operational amplifier in an 8-lead plastic SO package. It operates on single or split supplies from 2V to 44V with 50μA quiescent current per amplifier. Key electrical parameters include a maximum input offset voltage of 500μV, a gain bandwidth product of 200kHz, and high output current capability of 20mA. The device features over-the-top input common mode range extending 44V above V–, reverse supply protection up to 18V, and no phase reversal for inputs 15V below V–.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output operation with over-the-top input capability extending 44V above the negative supply
• Micropower consumption with 50μA maximum quiescent current per amplifier across all supply voltages
• Reverse battery protection up to 18V with negligible current draw during fault conditions
• High output drive strength capable of sourcing and sinking 20mA while maintaining rail-to-rail swing

Instrumentation, Op Amps, Buffer Amps Applications

• Battery monitoring systems
• Sensor conditioning circuits
• Supply current sensing
• Micropower active filters
• 4mA to 20mA transmitters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the suffix #TRPBF indicates tape and reel packaging and lead-free finish. Confirm the HS8 designation corresponds to the 8-lead Plastic SO package with the H grade temperature range of –40°C to 125°C. Ensure the ordering code matches the specific lot traceability requirements for your manufacturing process.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high input voltage tolerance relative to the negative rail is required without phase reversal. The H grade variant supports industrial temperatures up to 125°C. Consider the 20mA output drive if heavy loads must be driven directly. Verify that the 500μV max offset voltage meets precision requirements for the specific application.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1490A/LT1491A family of dual and quad op amps. The LT1490A is the dual version, while the LT1491A is the quad version. Both share identical electrical characteristics and pinouts for corresponding amplifiers. The family is designed for low-power applications requiring wide common mode ranges and robust fault protection.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes within the same family include LT1490ACS8#TRPBF (C grade) and LT1490AIS8#TRPBF (I grade). These variants differ only in specified temperature ranges and offset voltage limits. No other manufacturers' parts are confirmed as direct replacements in the provided documentation.