LT1019AIS8-2.5#PBF

Voltage Reference Overview

The LT1019AIS8-2.5#PBF is a precision shunt voltage reference manufactured by Analog Devices Inc., delivering a fixed output of 2.5 V. It features an initial accuracy of 0.05% and a temperature coefficient of 10 ppm/°C, ensuring high stability across operating conditions. The device operates within a supply voltage range of 4 V to 40 V and supports a maximum shunt current of 10 mA, with a minimum cathode current requirement of 800 µA for regulation. Typical quiescent current is 650 µA, while the maximum power supply current reaches 1.3 mA. It functions reliably between -40°C and +85°C, housed in an SOIC-8 surface-mount package.

Voltage Reference Feature Summary

• Provides ultra-low noise performance with specified peak-to-peak and RMS values in the 0.1 Hz to 10 Hz bandwidth.
• Delivers high initial accuracy and low temperature drift suitable for demanding measurement applications.
• Operates as a shunt reference requiring only a series resistor for biasing from standard supply rails.

Voltage Reference Applications

• High-resolution analog-to-digital converter (ADC) reference sources
• Precision data acquisition systems
• Calibration equipment requiring stable voltage standards

Voltage Reference Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for recent Product Change Notifications (PCN) regarding manufacturing site or material updates. Ensure ordering suffixes match required packaging and temperature grades. Validate pinout compatibility during integration planning.

Voltage Reference Selection Notes

Select this variant when superior initial accuracy and lower temperature drift are critical compared to standard grade parts. The AIS suffix indicates tighter specifications than CS or IS grades. Evaluate thermal management requirements based on dissipation at maximum shunt currents. Consider the SOIC-8 footprint constraints against available PCB real estate.

Voltage Reference Part Context

This component belongs to the LT1019 family of precision shunt references, designed to replace older Zener-based solutions. It offers improved noise and drift characteristics over previous generations. The series includes various output voltages and accuracy grades to support diverse industrial and instrumentation needs.

Voltage Reference Replacement Considerations

LT1019CS8-2.5#PBF

Voltage Reference FAQ

What is the maximum shunt current allowed for the LT1019AIS8-2.5#PBF?

The maximum shunt current is 10 mA.

Does the LT1019AIS8-2.5#PBF include a shutdown feature?

No, the device does not have a shutdown function.