TS4061AILT-1.225

Overview

The TS4061AILT-1.225 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed output of 1.225V with an initial accuracy of ±0.1%. It operates within an industrial temperature range of -40°C to +85°C and features a maximum temperature coefficient of 35ppm/°C. The device draws a typical cathode current of 10µA at 25°C and supports up to 15mA output current. It exhibits low noise characteristics, specified as 10µVp-p from 0.1Hz to 10Hz and 95µVrms from 10Hz to 10kHz. The component is housed in a compact SOT-23-3L surface-mount package.

Feature Summary

• Ultra-low operating current consumption suitable for power-constrained designs
• High precision with ±0.1% initial accuracy at 25°C
• Low low-frequency noise performance for sensitive applications
• Stable operation when used with capacitive loads

Applications

• Battery-powered instrumentation systems
• Portable measurement devices
• Data acquisition systems requiring stable references
• Space-constrained electronic circuits

Procurement Notes

Verify the specific suffix LT indicates the SOT-23-3L package configuration rather than other variants. Confirm the A grade corresponds to the ±0.1% tolerance specification required for the design. Check official documentation for any product change notices regarding manufacturing updates or obsolescence status before finalizing procurement plans.

Selection Notes

Select this component when high accuracy and minimal quiescent current are critical requirements. The SOT-23-3L package offers space efficiency compared to larger alternatives. Ensure the application load does not exceed the 15mA output capability while maintaining stability with any connected capacitive elements.

Part Context

This part belongs to the TS4061 family of precision micropower shunt voltage references. The family includes variants with different output voltages such as 1.25V and accuracies like ±0.2%. The TS4061 series is designed for industrial applications requiring stable reference voltages in small form factors.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific component were not identified in the provided source material.