LT1634CCZ-2.5#PBF

Voltage Reference Overview

The LT1634CCZ-2.5#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 of 2.5V 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 8µA at 10µA reverse current. It features low dynamic impedance and stability with capacitive loads without requiring external compensation.

Voltage Reference Feature Summary

• Utilizes trimmed precision thin film resistors for high initial voltage accuracy
• Incorporates improved curvature correction techniques to minimize temperature drift
• Designed for micropower operation with minimal quiescent current consumption
• Capable of stable performance with capacitive loads without additional compensation components

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix CCZ corresponds to the TO-92 package and commercial temperature range. Confirm lead-free finish status via official documentation. Ensure compatibility with existing board layouts for through-hole mounting. Check for any product change notifications affecting specifications or marking. Validate that the 2.5V variant meets the required accuracy class for the application.

Voltage Reference Selection Notes

Select this component when a through-hole shunt reference is required for cost-sensitive designs. The TO-92 package suits applications where surface area is less critical than assembly method. Consider the ±0.20% accuracy sufficient for general-purpose regulation. Evaluate if the 25ppm/°C drift meets thermal stability requirements compared to higher-grade SO-8 variants.

Voltage Reference Part Context

This part belongs to the LT1634 family of micropower precision shunt voltage references. It serves as a high-performance alternative to older standards like the LM185 or LT1034, offering lower power consumption and guaranteed temperature drift characteristics. The series includes various output voltages and packages to support diverse design needs.

Voltage Reference Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.