LT1634AIS8-5#TRPBF

Voltage Reference Overview

The LT1634AIS8-5#TRPBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc. It provides a fixed 5V output with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates at a low current of 10µA and features less than 1Ω dynamic impedance. It is housed in an 8-lead plastic SO package and supports industrial temperature ranges from -40°C to +85°C.

Voltage Reference Feature Summary

• Utilizes trimmed precision thin film resistors for high initial voltage accuracy
• Improved curvature correction technique ensures low temperature drift
• Stable with capacitive loads without requiring output compensation

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging when sourcing. Confirm the AIS8 variant matches the required industrial temperature range (-40°C to +85°C) and 8-lead SOIC package type. Ensure compatibility with existing board layouts designed for the standard LT1634 family pinout.

Voltage Reference Selection Notes

Select this component when upgrading from older references like LM185 or LT1004 where lower power consumption and guaranteed temperature drift are critical requirements. The 5V output version is suitable for applications needing a stable reference voltage with minimal quiescent current draw in portable or battery-operated systems.

Voltage Reference Part Context

This part belongs to the LT1634 series of micropower precision shunt voltage references. The series includes various output voltages (1.25V, 2.5V, 4.096V, 5V) and packages (SO-8, MSOP, TO-92). The 'AI' designation indicates the industrial temperature grade, while 'S8' specifies the 8-lead SOIC package format.

Voltage Reference Replacement Considerations

LT1634BCS8-5#TRPBF

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 technology is used to achieve the initial voltage accuracy?

The bandgap reference uses trimmed precision thin film resistors to achieve the specified initial voltage accuracy.