LT1021CCH-5#PBF

Voltage Reference Overview

The LT1021CCH-5#PBF is a precision voltage reference utilizing a buried zener diode structure, housed in an 8-lead TO-5 metal can package. It provides a fixed output voltage of 5V with an initial accuracy of ±0.05%. The device features ultralow drift and noise characteristics, ensuring high stability over time and temperature variations. It operates within a commercial temperature range of 0°C to 70°C and supports both sourcing and sinking currents up to 10mA.

Voltage Reference Feature Summary

• Ultralow drift performance with minimal temperature coefficient
• Very low noise output suitable for sensitive analog circuits
• High ripple rejection immunity against input voltage variations
• Buried zener architecture eliminates surface breakdown instability

Voltage Reference Applications

• A/D and D/A converters
• Precision regulators
• Digital voltmeters
• Inertial navigation systems
• Portable reference standards

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when ordering. Confirm the H package designation corresponds to the TO-5 metal can form factor required for your mechanical constraints. Ensure the C grade tolerance meets your system's accuracy requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component for applications demanding superior long-term stability and low noise compared to standard bandgap references. The buried zener technology offers better thermal drift than many alternatives without requiring internal heaters. Consider the TO-5 package for its robust shielding properties against environmental interference.

Voltage Reference Part Context

This part belongs to the LT1021 family of precision references, which includes 5V, 7V, and 10V variants. The 5V version is optimized for systems requiring precise fixed voltage rails. Unlike the 7V model, it includes a trim pin for fine-tuning output voltage while maintaining low temperature coefficient shifts.

Voltage Reference Replacement Considerations

LT1021BCH-5

Voltage Reference FAQ

Does the LT1021CCH-5 require an on-chip heater for low drift?

No, the unique circuit design allows it to offer ultralow drift without using high-power on-chip heaters.

What is the maximum current the reference output can handle?

The reference output can both source and sink up to 10mA of current.