LT1792AIS8#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1792AIS8#TRPBF is a low noise, precision JFET input operational amplifier manufactured by Analog Devices Inc. It features a typical voltage noise density of 4.2nV/√Hz and picoampere bias currents, making it suitable for amplifying low-level signals from high-impedance capacitive transducers. The device operates within a supply voltage range of ±5V to ±20V and is available in an 8-lead plastic SOIC package. It is unconditionally stable for gains of one or greater.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Achieves industry-leading low voltage noise performance combined with picoampere bias currents
• Unconditionally stable for gains of one or more even with significant load capacitances
• Optimized design ensures true precision performance within a standard surface mount footprint

Instrumentation, Op Amps, Buffer Amps Applications

• Low noise hydrophone amplifiers with DC servo
• Photocurrent amplifiers for optical sensing
• High sensitivity piezoelectric accelerometer interfaces
• Low voltage and current noise instrumentation amplifier front ends
• Active filters requiring high precision and low distortion

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm tape and reel packaging configuration. Ensure that the selected variant matches the required temperature grade and electrical specifications for the intended application environment.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when minimizing total system noise is critical for high impedance sources. Consider reduced power supply operation to lower die temperature and bias current if dynamic range constraints allow. Verify stability requirements regarding capacitive loading before implementation.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1792 family of low noise JFET op amps. It serves as a single-channel version distinct from dual variants like the LT1113. The series is designed to replace bipolar op amps in high impedance transducer applications due to superior noise characteristics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1793ACS8#TRPBF offers lower bias current while maintaining similar noise profiles. LT1113ACS8#TRPBF provides a dual-channel alternative with comparable noise performance. Consult official substitution guides for pinout and parameter compatibility.

Instrumentation, Op Amps, Buffer Amps FAQ

Is the LT1792 unconditionally stable with capacitive loads?

Yes, the LT1792 is unconditionally stable for gains of one or more, even with load capacitances up to 1000pF.

Can the LT1792 operate with reduced power supplies?

Yes, the device can be operated from –5V supplies to reduce power dissipation and bias current, though this reduces the dynamic range.