LTC6655CHMS8-2.048#PBF

Voltage Reference Overview

The Analog Devices LTC6655CHMS8-2.048#PBF is a precision bandgap voltage reference delivering a fixed 2.048V output with ±0.05% initial accuracy and a maximum temperature coefficient of 5ppm/°C. It operates within a supply range from VOUT + 0.5V to 13.2V, drawing 7mA typical current. The device features low noise (0.25ppm P-P at 0.1Hz–10Hz), ±5mA source/sink capability, and <20µA shutdown current. Housed in an 8-lead MSOP package, it is fully specified over the –40°C to 125°C industrial temperature range.

Voltage Reference Feature Summary

• Advanced curvature compensation ensures predictable temperature characteristics and high accuracy without calibration.
• Superior load regulation and line rejection maintain consistent performance across wide operating conditions.
• Integrated shutdown mode significantly reduces power consumption for low-power applications.

Voltage Reference Applications

• Instrumentation and test equipment
• High resolution data acquisition systems
• Precision battery monitors

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when reviewing distributor listings. Confirm the 'C' grade designation matches the required 5ppm/°C drift specification. Ensure the MSOP-8 footprint aligns with the target PCB layout. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity and revision status before procurement.

Voltage Reference Selection Notes

Select this component when a stable 2.048V reference is required with moderate drift tolerance. The MSOP-8 package offers a compact solution compared to hermetic LS8 options. Consider the ±5mA current drive capability for direct load interfacing. Evaluate the 7mA supply current against system power budgets. Verify that the 500mV dropout voltage suits the available input supply headroom.

Voltage Reference Part Context

This part belongs to the LTC6655 family of precision references, designed for demanding automotive and industrial environments. It complements the lower-drift LTC6655LN series and the higher-accuracy B-grade variants. The family shares common pinouts and application circuits, facilitating design scalability across different precision requirements and thermal constraints.

Voltage Reference Replacement Considerations

LTC6655BHMS8-2.048#PBF offers improved 2ppm/°C drift performance. LTC6655CHMS8-2.048#TRPBF provides identical electrical specifications but utilizes tape-and-reel packaging instead of tubes.