LT1019AIS8-5#PBF

Voltage Reference Overview

The LT1019AIS8-5#PBF is a precision shunt voltage reference manufactured by Analog Devices Inc., featuring a fixed 5 V output. It offers high initial accuracy of 0.05% and a low temperature coefficient of 10 PPM/°C. The device operates within a supply voltage range of 6.5 V to 40 V, with a maximum shunt current of 10 mA and minimum operating current of 800 uA. It consumes 650 uA of quiescent current and has a maximum power supply current of 1.3 mA. Packaged in an SOIC-8 surface-mount format, it supports an industrial temperature range from -40°C to +85°C.

Voltage Reference Feature Summary

• Provides stable 5 V reference via shunt architecture
• Delivers ultra-high initial accuracy for precision applications
• Ensures thermal stability with low temperature coefficient
• Supports wide input voltage operation up to 40 V

Voltage Reference Applications

• High-resolution data acquisition systems
• Precision analog-to-digital converter references
• Calibration equipment requiring stable voltage sources
• Industrial instrumentation signal conditioning

Voltage Reference Procurement Notes

Verify the specific suffix AIS8-5#PBF against official Analog Devices documentation to confirm the 0.05% accuracy grade and industrial temperature rating. Ensure the SOIC-8 package matches the design footprint. Confirm RoHS compliance status through the manufacturer's latest product change notifications or datasheet revision history before finalizing procurement.

Voltage Reference Selection Notes

Select this component when application requirements demand superior initial accuracy compared to standard 0.2% variants. The lower temperature coefficient makes it suitable for environments with significant thermal fluctuations. Verify that the 800 uA minimum cathode current requirement can be met by the circuit design to maintain regulation without excessive power dissipation.

Voltage Reference Part Context

This part belongs to the LT1019 series of precision shunt voltage references. It shares the same core bandgap architecture as other LT1019 variants but is distinguished by its tighter manufacturing tolerances for accuracy and drift. The series is designed to replace older zener-based references in high-performance analog circuits requiring long-term stability.

Voltage Reference Replacement Considerations

LT1019IS8-5#PBF (0.2% accuracy), LT1019CS8-5#PBF (0.2% accuracy, commercial temp). Verify pinout compatibility and ensure thermal management meets the specific accuracy class requirements.