LTC6652AHMS8-2.5#PBF

Overview

The LTC6652AHMS8-2.5#PBF is a precision buffered voltage reference delivering a fixed 2.5V output. It features an A-grade temperature coefficient of 5ppm/°C and initial accuracy of ±0.05%. The device operates from a supply range of 2.7V to 13.2V with a dropout voltage of 300mV. It provides ±5mA source/sink current capability and consumes 350µA typical supply current. Low noise performance is specified at 2.1ppm P-P (0.1Hz to 10Hz). The component is housed in an 8-lead MSOP package and is fully characterized over the –40°C to 125°C operating temperature range.

Feature Summary

• High-order curvature compensation ensures low drift and predictable temperature characteristics across the full industrial range.
• Integrated shutdown mode reduces power consumption to less than 2µA when the device is inactive.
• Capable of sourcing and sinking up to 5mA, providing robust load regulation for demanding applications.
• 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 grade suffix 'A' corresponds to the required 5ppm/°C drift specification. Confirm the MSOP-8 package matches the target PCB footprint. Ensure the input voltage remains within the 2.7V to 13.2V limits during operation. Check that the SHDN pin logic levels are compatible with the controlling microcontroller or system interface.

Selection Notes

Select this part when strict temperature stability and high accuracy are required. The A-grade rating offers superior drift compared to B-grade alternatives. Consider the 300mV dropout requirement against the minimum available supply voltage. Evaluate the need for shutdown functionality if power conservation is critical for the application design.

Part Context

This component belongs to the LTC6652 family of precision references, which includes various output voltages and package options such as the hermetic LS8. The MSOP variant provides a compact surface-mount solution suitable for space-constrained designs while maintaining the family's high-performance electrical characteristics and wide operating temperature range.

Replacement Considerations

LTC6652BHMS8-2.5#PBF: Offers identical functionality with a relaxed 10ppm/°C temperature coefficient and ±0.1% accuracy.