LT1634BCMS8-1.25#TRPBF

Voltage Reference Overview

The LT1634BCMS8-1.25#TRPBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc., featuring a fixed 1.25V output with ±0.05% initial accuracy and a maximum temperature coefficient of 25ppm/°C. It operates within a commercial temperature range of 0°C to 70°C, drawing a minimum operating current of 7µA at 10µA reverse current. The device utilizes trimmed thin-film resistors for high stability and exhibits low dynamic impedance below 1Ω. Packaged in an 8-lead MSOP, it is supplied in tape and reel format.

Voltage Reference Feature Summary

• Utilizes bandgap architecture with trimmed precision thin film resistors to achieve high initial voltage accuracy.
• Incorporates improved curvature correction techniques to ensure low temperature drift across the operating range.
• Designed for micropower applications with guaranteed low operating current and low temperature cycling hysteresis.
• Capable of stable operation with capacitive loads without requiring external output compensation capacitors.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify that the specific ordering suffix #TRPBF corresponds to the tape and reel packaging configuration rather than tube packaging. Confirm the BC grade designation aligns with the required 25ppm/°C temperature coefficient and 0°C to 70°C commercial operating range specifications for your design constraints.

Voltage Reference Selection Notes

Select this component when a precise shunt reference is needed with minimal power consumption. The 1.25V output is suitable for low-voltage reference applications. Ensure the circuit design accommodates the minimum operating current requirements and provides adequate thermal management within the specified commercial temperature limits.

Voltage Reference Part Context

This part belongs to the LT1634 family of micropower precision shunt voltage references. It serves as a high-performance upgrade to older references like the LM185 or LT1004, offering lower power consumption and guaranteed temperature drift characteristics while maintaining compatibility in similar application circuits.

Voltage Reference Replacement Considerations

LT1634BCMS8-1.25#PBF (Tube Packaging)

Voltage Reference FAQ

Does the LT1634 require an output compensation capacitor?

No, the LT1634 does not require an output compensation capacitor but remains stable with capacitive loads.

What is the maximum temperature coefficient for the LT1634BCMS8-1.25 variant?

The maximum temperature coefficient for the LT1634BCMS8-1.25 variant is 25ppm/°C.