LT1634BCMS8-2.5#TRPBF

Voltage Reference Overview

The LT1634BCMS8-2.5#TRPBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc. It provides a fixed 2.5V output with an initial accuracy of ±0.05% and a maximum temperature coefficient of 25ppm/°C. The device operates at a low current of 10µA and features less than 1Ω dynamic impedance. It is housed in an 8-lead MSOP package and supports a commercial operating temperature range from 0°C to 70°C.

Voltage Reference Feature Summary

• Micropower operation with 10µA supply current
• Precision bandgap reference using trimmed thin film resistors
• Low drift performance with improved curvature correction
• Stable with capacitive loads without external compensation

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging for automated assembly. Confirm the BC grade designation matches the required 25ppm/°C temperature coefficient and 0°C to 70°C commercial temperature range specifications. Ensure the MSOP package type aligns with the target PCB footprint requirements.

Voltage Reference Selection Notes

Select this component when low power consumption is critical alongside high precision. The 2.5V output suits applications requiring stable references for ADCs or DACs. Verify that the commercial temperature range meets environmental constraints. Consider the low dynamic impedance for use with unregulated supplies.

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, LM385, LT1004, and LT1034. The family offers various output voltages and packages including SO-8, MSOP, and TO-92.

Voltage Reference Replacement Considerations

LT1634BCMS8-2.5#PBF (Tube version)

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 minimum operating current for the 2.5V version?

The minimum operating current is 8µA.