LT1634BIS8-5#PBF

Voltage Reference Overview

The LT1634BIS8-5#PBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc. It provides a fixed output of 5V with an initial accuracy of ±0.05%. The device operates within the industrial temperature range of –40°C to +85°C and features a maximum temperature coefficient of 25ppm/°C. It utilizes trimmed precision thin film resistors for bandgap correction, ensuring low drift and stability without requiring an external compensation capacitor.

Voltage Reference Feature Summary

• Micropower operation with low operating current requirements
• High initial voltage accuracy achieved through trimmed thin film resistors
• Stable performance with capacitive loads without external compensation

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and tube packaging. Confirm the BIS8 designation corresponds to the industrial temperature grade and SOIC-8 package. Ensure compatibility with existing board layouts for the 8-lead plastic small outline package before procurement.

Voltage Reference Selection Notes

Select this component when high precision and low power consumption are required in portable or battery-operated systems. The industrial temperature range makes it suitable for environments with wider thermal variations compared to commercial grades. Verify that the shunt configuration fits the circuit topology.

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, offering lower power consumption and guaranteed temperature drift characteristics while maintaining similar functionality in compact packages.

Voltage Reference Replacement Considerations

LT1634BCS8-5#PBF (Commercial grade)

Voltage Reference FAQ

Does the LT1634 require an external compensation capacitor?

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

What technology is used for the bandgap reference?

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