LTC6652AHMS8-3#PBF

Overview

The LTC6652AHMS8-3#PBF is a precision buffered voltage reference delivering a fixed 3V output. It features an initial accuracy of ±0.05% and a maximum temperature coefficient of 5ppm/°C. The device operates within a supply range of 2.7V to 13.2V, with a minimum dropout of 300mV. Key electrical parameters include a typical quiescent current of 560µA, shutdown current under 2µA, and peak-to-peak noise of 2.1ppm in the 0.1Hz to 10Hz band. It supports sourcing 5mA and sinking 1mA.

Feature Summary

• High-order curvature compensation ensures low drift and predictable temperature characteristics across the operating range.
• Integrated buffer provides excellent load regulation and capability for both sourcing and sinking current.
• Active-low shutdown mode significantly reduces power consumption when the reference is not required.
• Stable operation is maintained without mandatory external load capacitors, though optional capacitance is supported.

Applications

• Automotive control and monitoring systems
• High-resolution data acquisition systems
• Precision regulators

Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and standard tube packaging. Confirm the A-grade designation matches the required ±0.05% accuracy and 5ppm/°C drift specifications. Ensure the MSOP-8 package dimensions align with the target PCB footprint constraints.

Selection Notes

Select this component when high accuracy and low drift are critical for 3V applications. The A-grade specification is necessary for tight tolerance requirements. Consider the 560µA supply current against system power budgets. Verify that the 300mV dropout voltage accommodates the available input supply headroom.

Part Context

This part belongs to the LTC6652 family of precision, low-drift, low-noise references. The family includes variants with different output voltages and grades (A and B). The MSOP-8 package is a standard plastic surface-mount option, distinct from the hermetic LS8 ceramic package variant.

Replacement Considerations

LTC6652BHMS8-3#PBF offers identical functionality with relaxed B-grade specifications (±0.1% accuracy, 10ppm/°C drift).