TS822AIZ

Overview

The TS822AIZ is a micropower shunt voltage reference manufactured by STMicroelectronics. It provides a stable 2.5V output voltage across the industrial temperature range of -40°C to +85°C. The device features an initial accuracy of 1% and a temperature coefficient of 100 PPM/°C. It operates with a minimum shunt current of 50 µA and a maximum of 15 mA. The component is housed in a SOT-23-3 surface-mount package.

Feature Summary

• Provides a stable 2.5V reference output suitable for precision applications
• Designed for low power consumption with micropower operation characteristics
• Maintains specified performance across the full industrial temperature range

Applications

• Portable battery-powered instrumentation
• Handheld meters
• Data acquisition systems
• Battery chargers

Procurement Notes

Verify the specific suffix 'IZ' against the manufacturer's official datasheet to confirm pinout, tolerance, and packaging details. Ensure the ordering part number matches the required initial accuracy and temperature coefficient specifications for the target application environment.

Selection Notes

Select this component when a fixed 2.5V reference is required in a compact SOT-23-3 footprint. Consider the 1% initial accuracy and 100 PPM/°C temperature coefficient for circuit stability requirements. Verify that the load current remains within the 50 µA to 15 mA operating range for proper regulation.

Part Context

The TS822 series belongs to STMicroelectronics' portfolio of micropower shunt voltage references. These devices are designed to replace Zener diodes in applications requiring higher stability and lower noise. The TS822AIZ variant specifically denotes the 2.5V output version with defined tolerance and packaging.

Replacement Considerations

Check for direct substitutes such as the LM4040 or TL431 families, ensuring voltage, package, and accuracy match. Verify thermal resistance and current limits when replacing in existing designs.