LT1634BCS8-4.096#TRPBF

Voltage Reference Overview

The LT1634BCS8-4.096#TRPBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc., featuring a fixed output of 4.096V. It utilizes trimmed precision thin film resistors to achieve an initial voltage accuracy of ±0.05% and a maximum temperature coefficient of 25ppm/°C. The device operates with a minimum current of 15µA and maintains stability with capacitive loads without requiring external compensation. It is housed in an 8-lead plastic SO package and supports commercial operating temperatures from 0°C to 70°C.

Voltage Reference Feature Summary

• Micropower operation with low quiescent current consumption
• High precision achieved through trimmed thin film resistors
• Low dynamic impedance for stable performance from unregulated supplies
• Capacitive load stability without external compensation components

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the BC grade designation corresponds to the required 0.05% accuracy and 25ppm/°C drift specifications for your application environment. Ensure the 8-lead SO package footprint matches your PCB layout requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component when high precision is required alongside minimal power consumption. The 4.096V output is suitable for driving ADCs directly. Consider the 25ppm/°C drift if operating within the commercial temperature range. This part serves as a direct upgrade for legacy references like the LM385 where lower power and guaranteed drift are necessary.

Voltage Reference Part Context

This component belongs to the LT1634 family of micropower precision shunt voltage references. The family offers various output voltages including 1.25V, 2.5V, 4.096V, and 5V across different packages such as MSOP, SO-8, and TO-92. The LT1634 series is designed to replace older generation references while providing improved curvature correction and lower operating currents.

Voltage Reference Replacement Considerations

LT1634ACS8-4.096#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.