LTC6652AHMS8-3.3#PBF

Overview

The LTC6652AHMS8-3.3#PBF is a precision buffered voltage reference delivering a fixed 3.3V output with an initial accuracy of ±0.05% and a maximum temperature drift of 5ppm/°C. It operates within a supply range of 2.7V to 13.2V, featuring a low dropout of 300mV and a typical quiescent current of 560µA. The device supports ±5mA source and sink currents, exhibits 2.1ppm P-P noise (0.1Hz to 10Hz), and includes a shutdown mode consuming less than 2µA. Packaged in an 8-lead MSOP, it functions reliably from –40°C to 125°C.

Feature Summary

• High-order curvature compensation ensures predictable temperature characteristics and minimal drift across the operating range.
• Integrated buffer provides excellent load regulation and high drive capability for both sourcing and sinking currents.
• Low power shutdown mode significantly reduces consumption when the reference is inactive.
• Stable operation without requiring an external output capacitor, though optional capacitance is supported.

Applications

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

Procurement Notes

Verify the specific A-grade designation and MSOP package configuration against official Analog Devices documentation. Confirm that the #PBF suffix indicates lead-free compliance and RoHS adherence. Ensure the ordering code matches the required 3.3V output variant to avoid functional mismatches with other voltage options in the family.

Selection Notes

Select this component for applications demanding high stability and low noise in compact designs. The A-grade specification suits circuits requiring tight initial accuracy limits. Consider the 300mV dropout requirement relative to the available supply rail. Evaluate thermal dissipation if operating near maximum input voltages or load currents to ensure junction temperatures remain within specified limits.

Part Context

This part belongs to the LTC6652 family of precision references, which also includes B-grade variants and hermetic LS8 packages. The MSOP package offers a standard surface-mount solution suitable for general industrial use. Other members of the series provide different fixed output voltages such as 1.25V, 2.5V, and 5V while maintaining similar performance profiles.

Replacement Considerations

LTC6652BHMS8-3.3#PBF