LTC6652BHMS8-5#TRPBF

Overview

The LTC6652BHMS8-5#TRPBF is a precision buffered voltage reference from Analog Devices, featuring a fixed 5V output. It operates within a supply range of 2.8V to 13.2V and delivers an initial accuracy of ±0.1% with a maximum temperature coefficient of 10ppm/°C. The device provides ±5mA source and sink current capability while maintaining low noise performance of 3ppm RMS in the 10Hz to 1kHz band. It includes a shutdown mode consuming less than 2µA and is housed in an 8-lead MSOP package.

Feature Summary

• High-order curvature compensation ensures predictable temperature characteristics across the full operating range.
• Integrated buffer amplifier allows for direct sourcing and sinking of load currents without external components.
• Active-low shutdown pin enables significant power reduction when the reference is not required.
• Stable operation is guaranteed with or without an optional output capacitor.

Applications

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

Procurement Notes

Verify the specific B-grade accuracy and MSOP packaging against the official datasheet specifications. Confirm that the tape and reel suffix matches the required manufacturing format. Ensure the component meets the –40°C to 125°C temperature range requirements for the target application environment before finalizing procurement.

Selection Notes

Select this part when a stable 5V reference is needed with high accuracy and low drift. Consider the B-grade specifications if tighter A-grade tolerances are not required. Evaluate the thermal dissipation limits if operating near maximum input voltages and load currents. Verify compatibility with the system's shutdown logic levels.

Part Context

This component belongs to the LTC6652 family of precision references, which also includes variants with different output voltages such as 1.25V, 2.5V, and 3.3V. The family shares common features like low noise and high accuracy but differs in specific electrical parameters based on the selected output voltage and grade.

Replacement Considerations

Direct substitutes include other LTC6652 variants with different output voltages or grades, such as LTC6652AHMS8-5#TRPBF for higher accuracy. Cross-family replacements require verification of pinout compatibility and electrical parameter alignment.

FAQ

Is an output capacitor required for stability?

No, the LTC6652 is stable with or without an output capacitor. However, adding a capacitor between 0.1µF and 10µF can be beneficial for certain load conditions.

How does the shutdown mode affect the output?

Tying the SHDN pin low powers down the device to less than 2µA. In this state, the output impedance becomes approximately 20kΩ multiplied by the rated output voltage.