LT1634CCZ-1.25#PBF

Voltage Reference Overview

The LT1634CCZ-1.25#PBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc., housed in a 3-lead plastic TO-92 package. It provides a fixed output voltage of 1.25V with an initial accuracy of ±0.20% and a maximum temperature coefficient of 25ppm/°C. The device operates within a commercial temperature range of 0°C to +70°C, drawing a minimum operating current of 7µA at a reverse current of 10µA. It features low dynamic impedance and low-frequency noise characteristics suitable for high-performance analog applications.

Voltage Reference Feature Summary

• Utilizes trimmed precision thin film resistors within the bandgap reference architecture to achieve specified initial voltage accuracy.
• Incorporates improved curvature correction techniques to ensure stable performance across the operating temperature range.
• Designed for direct replacement in existing circuits requiring lower power consumption and guaranteed temperature drift specifications.

Voltage Reference Applications

• Portable meters
• Precise regulators
• A/D and D/A converters
• Calibrators

Voltage Reference Procurement Notes

Verify that the component matches the specific TO-92 package configuration and lead-free finish indicated by the #PBF suffix. Confirm the commercial temperature rating aligns with system requirements. Ensure proper ESD handling precautions are observed during installation due to the sensitivity of the internal circuitry.

Voltage Reference Selection Notes

Select this part when a compact through-hole solution is required for low-power shunt reference applications. The TO-92 package facilitates easy integration into legacy designs or space-constrained boards where surface mount options are not preferred. Verify that the 0.20% initial accuracy meets the system's calibration needs.

Voltage Reference Part Context

This component belongs to the LT1634 family of micropower precision shunt voltage references. The series offers various output voltages and packages, including MSOP and SO-8. The CCZ variant specifically denotes the commercial grade version in the TO-92 package, providing a robust alternative to older reference technologies like the LM185 or LT1004.

Voltage Reference Replacement Considerations

LT1634CCZ-1.25#TRPBF