LT6657AHMS8-1.25#TRPBF

Voltage Reference Overview

The LT6657AHMS8-1.25#TRPBF is a precision buffered voltage reference with an output of 1.25V and initial accuracy of 0.1%. It features a maximum temperature coefficient of 1.5ppm/°C, low noise (0.5ppm P-P from 0.1Hz to 10Hz), and wide supply range up to 40V. The device supports ±10mA drive current, reverse battery protection, and thermal shutdown. It operates from -40°C to 125°C in an 8-lead MSOP package.

Voltage Reference Feature Summary

• Advanced curvature compensation for extremely low drift and predictable temperature behavior
• Buffered output capable of sourcing and sinking 10mA with precise load regulation
• Low dropout design allowing operation with minimal input-to-output differential voltage
• Integrated reverse supply and output protection with thermal shutdown

Voltage Reference Applications

• High resolution data acquisition systems
• Instrumentation and process control
• Automotive control and monitoring
• Medical equipment
• Shunt and negative voltage references

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the A-grade designation matches the required 1.5ppm/°C drift specification. Ensure the 1.25V output option aligns with the unique minimum supply voltage requirement of 1.5V compared to other variants.

Voltage Reference Selection Notes

Select this part for applications requiring ultra-low drift and high stability over wide temperature ranges. Consider the 1.25V variant specifically if a lower minimum supply voltage is needed, as it requires only 1.5V input. Evaluate the need for shunt mode capability or negative reference configuration based on system topology.

Voltage Reference Part Context

This component belongs to the LT6657 family of precision voltage references from Analog Devices. It shares core architectural features with other grades and voltages in the series but is distinguished by its A-grade temperature coefficient and specific 1.25V output setting. The MSOP-8 package provides a compact footprint for space-constrained designs.

Voltage Reference Replacement Considerations

LT6657BHMS8-1.25#TRPBF offers the same voltage and package with a relaxed 3ppm/°C drift specification.