LT6657BHMS8-2.5#TRPBF

Overview

The LT6657BHMS8-2.5#TRPBF is a precision buffered voltage reference with a 2.5V output, housed in an 8-lead MSOP package. It features a B-grade temperature coefficient of 3ppm/°C and an initial accuracy of ±0.1%. The device operates over a –40°C to 125°C range, supports a supply voltage up to 40V, and provides ±10mA drive capability. Key electrical parameters include 0.5ppm P-P noise (0.1Hz to 10Hz), 0.2ppm/V line regulation, and 2µV/mA load regulation.

Feature Summary

• Advanced curvature compensation for extremely low drift and predictable temperature behavior
• Capable of sourcing and sinking 10mA with high sink current for negative reference operation
• Includes reverse supply and output protection along with thermal shutdown for overload conditions
• Features a configurable shutdown mode that reduces power consumption while enabling quick turn-on

Applications

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

Procurement Notes

Verify the specific B-grade temperature coefficient and 2.5V output configuration against the official datasheet before procurement. Confirm the tape and reel packaging format matches the #TRPBF suffix requirements. Ensure the operating environment stays within the specified –40°C to 125°C range to maintain guaranteed performance levels.

Selection Notes

Select this component when low drift and low noise are critical for system accuracy. The B-grade option offers a 3ppm/°C drift specification suitable for general precision applications. Consider the wide supply range and bidirectional drive capability if the design requires shunt or negative reference configurations.

Part Context

This part belongs to the LT6657 family of precision voltage references from Analog Devices. The series combines robust operating characteristics with advanced bandgap technology. Other variants in the family offer different output voltages such as 1.25V, 3V, 4.096V, and 5V, alongside A-grade options for tighter drift specifications.

Replacement Considerations

LT6657AHMS8-2.5#TRPBF

FAQ

Can the LT6657 operate as a negative voltage reference?

Yes, the high sink current capability allows it to operate as a negative voltage reference with the same precision as a positive reference.

What is the minimum input-to-output differential voltage required?

For the 2.5V option, the minimum VIN minus VOUT is typically 50mV at zero load current.