LTC6655BHMS8-5#PBF

Overview

The Analog Devices LTC6655BHMS8-5#PBF is a precision bandgap voltage reference providing a fixed 5V output with an initial accuracy of ±0.025%. It features a maximum temperature coefficient of 2ppm/°C and operates within a supply range of VOUT + 0.5V to 13.2V. The device supports ±5mA source/sink current, maintains low dropout operation, and includes a shutdown mode consuming less than 20µA. Packaged in an 8-lead MSOP, it is fully specified over the –40°C to 125°C industrial temperature range.

Feature Summary

• Advanced curvature compensation ensures highly predictable temperature characteristics and minimizes calibration requirements.
• Dual-output architecture with separate force and sense pins enables superior load regulation and high-precision measurements.
• Integrated shutdown capability significantly reduces power consumption for battery-operated or energy-efficient applications.

Applications

• Instrumentation and test equipment requiring high-resolution measurements
• High resolution data acquisition systems
• Precise battery monitors
• Medical equipment

Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing this component. Confirm that the 'B' grade designation matches the required ±0.025% accuracy specification for your design. Ensure the 8-lead MSOP package footprint aligns with your PCB layout constraints before finalizing procurement.

Selection Notes

Select this part when strict accuracy and low drift are critical. The B-grade variant offers tighter tolerance than the C-grade option. Consider the MSOP package for standard surface mount assembly. Verify that the 5V output level meets system requirements without additional scaling.

Part Context

This component belongs to the LTC6655 family of precision references from Analog Devices. It shares architectural similarities with other members like the LTC6655LN but lacks the dedicated noise reduction pin found in the LN series. It serves as a stable voltage baseline for analog signal chains in demanding environments.

Replacement Considerations

LTC6655CHMS8-5#PBF (Lower Accuracy Grade)

FAQ

How does the dual-output configuration improve performance?

The device separates the force and sense outputs, allowing the sense pin to be connected directly at the load. This eliminates voltage drop errors across traces, ensuring superior load regulation.

What is the function of the SHDN pin?

The SHDN pin controls the shutdown mode. Tying it to ground powers down the device to reduce current consumption below 20µA, while leaving it open or pulling it high enables normal operation.