LT1634ACS8-4.096#PBF

Voltage Reference Overview

The LT1634ACS8-4.096#PBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc., featuring a fixed output of 4.096V in an 8-lead plastic SO package. It achieves 0.05% initial voltage accuracy and a maximum temperature coefficient of 10ppm/°C over the commercial operating range of 0°C to 70°C. The device operates with a minimum current of 15µA, exhibits less than 1Ω dynamic impedance, and requires no external compensation capacitor for stability.

Voltage Reference Feature Summary

• Utilizes trimmed precision thin film resistors within a bandgap reference architecture to ensure high initial voltage accuracy.
• Incorporates improved curvature correction techniques to guarantee low temperature drift across the operating range.
• Provides stable operation with capacitive loads without requiring an external output compensation capacitor.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify that the ordering suffix #PBF confirms lead-free finish compliance and tape and reel availability if required. Confirm the specific package type matches the design requirements. Ensure the component meets RoHS standards for the intended manufacturing process. Check datasheet notes regarding ESD sensitivity and proper handling precautions during assembly.

Voltage Reference Selection Notes

Select this part when upgrading from LM185/LM385 or LT1004/LT1034 references where lower power consumption and guaranteed temperature drift are critical. Choose the ACS8 variant for commercial temperature ranges requiring 0.05% accuracy and 10ppm/°C drift. Consider the MSOP package if space constraints require a smaller footprint compared to the standard SO-8.

Voltage Reference Part Context

The LT1634 series includes variants with outputs of 1.25V, 2.5V, 4.096V, and 5V. These are available in SO-8, MSOP, and TO-92 packages. The LT1634 serves as a high-performance replacement for older reference technologies, offering superior stability and lower power consumption suitable for battery-operated and precision measurement applications.

Voltage Reference Replacement Considerations

LT1634BCS8-4.096#PBF

Voltage Reference FAQ

Does the LT1634ACS8-4.096 require an output compensation capacitor?

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

What is the typical low-frequency noise specification for the 4.096V version?

The peak-to-peak noise is typically 30µVP-P measured between 0.1Hz and 10Hz at an operating current of 20µA.