TS821AILT

Overview

The TS821AILT is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a stable 1.225V output. It features an initial accuracy of 1% and a maximum temperature coefficient of 120 PPM/C. The device operates within an industrial temperature range of -40°C to +85°C. Key electrical parameters include a maximum operating current of 12 mA and a minimum shunt current of 45 uA. It is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• Provides a stable 1.225V reference voltage suitable for power-restricted designs
• Offers high precision with 1% initial accuracy at 25°C
• Ensures stability when used with capacitive loads

Applications

• Applications requiring space-saving critical design
• Power restricted electronic designs
• Industrial temperature range instrumentation

Procurement Notes

Verify component status as the TS821 series is marked End-of-Life with potential obsolescence. Confirm availability through authorized distributors or check for Product Change Notices regarding discontinuation. Ensure sourcing channels are legitimate to avoid counterfeit parts given the lifecycle stage.

Selection Notes

Select this component for applications needing a low-cost, micropower shunt reference with 1.225V output. Consider the 120 PPM/C temperature coefficient and 1% accuracy limits. Verify that the SOT-23-3 package fits the PCB layout constraints and that the 12 mA max current meets load requirements.

Part Context

The TS821AILT belongs to the TS821 family of micropower shunt voltage references from STMicroelectronics. This series is designed for general-purpose voltage referencing where low power consumption and small form factor are priorities. The 'A' suffix denotes the 1% accuracy grade within the product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.