LT6372IUDC-0.2#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT6372IUDC-0.2#TRPBF is a precision funneling instrumentation amplifier in a 20-lead QFN package, designed for high DC accuracy and ADC interfacing. It features a gain range of 0.2 to over 200 V/V with a single external resistor. Key electrical parameters include a maximum input offset voltage of 60µV, a drift of 0.6µV/°C, and a minimum CMRR of 80dB at G=0.2. The device operates on a supply voltage from 4.75V to 35V, drawing approximately 2.75mA. It provides a 4MHz bandwidth at G=0.2, low noise density of 7nV/√Hz, and integrated output clamping and level shifting capabilities.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrated output clamping pins limit the output voltage to protect downstream analog-to-digital converters.
• Split reference configuration allows precise level shifting of the output signal to center within an ADC's input range.
• Built-in EMI filtering on the inputs maintains measurement accuracy in environments with harsh RF interference.
• Proprietary bipolar process ensures industry-leading DC precision and exceptional long-term stability.

Instrumentation, Op Amps, Buffer Amps Applications

• Bridge Amplifier
• Thermocouple Amplifier
• Strain Gauge Amplifier
• Medical Instrumentation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the I-grade temperature rating (-40°C to 85°C) matches your system requirements. Ensure the 20-lead QFN footprint aligns with your PCB layout constraints before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this part for applications requiring high precision with minimal calibration effort. The fixed G=0.2 internal setting makes it suitable for attenuating large differential signals directly into ADC ranges. Consider the H-grade variant if operation above 85°C is necessary.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the LT6372 family of funneling instrumentation amplifiers. It shares architectural similarities with the LT6370 but adds integrated clamping and level-shifting features. The IUDC-0.2 variant specifically utilizes the compact 3mm x 4mm QFN package for space-constrained designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT6372IUDC-1#TRPBF (Different internal gain setting)

Instrumentation, Op Amps, Buffer Amps FAQ

How does the split reference configuration function?

REF1 and REF2 can be used together to form a voltage divider, allowing the user to precisely level shift the amplifier's output to the center of an ADC's input range.

What is the purpose of the CLLO and CLHI pins?

These pins provide integrated output clamping. The output voltage is limited to approximately 500mV beyond the voltages applied to these pins, protecting connected ADCs from overvoltage.