TS4061AILT-1.25

Overview

The TS4061AILT-1.25 is a precision micropower shunt voltage reference manufactured by STMicroelectronics, designed for applications requiring stable output voltages within the industrial temperature range of -40°C to +85°C. It provides a fixed output voltage of 1.25 V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 35 ppm/°C. The device operates with an ultra-low current consumption of 10 μA at 25°C and supports a maximum shunt current of 15 mA. Packaged in a compact SOT-23-3L surface-mount format, it ensures stability even when driving capacitive loads.

Feature Summary

• Delivers high precision with ±0.1% initial accuracy and low noise characteristics suitable for sensitive analog circuits.
• Features ultra-low operating current of 10 μA, optimizing power efficiency in battery-operated or energy-constrained designs.
• Maintains stability across the full industrial temperature range (-40°C to +85°C) with minimal drift.
• Capable of driving capacitive loads without oscillation, simplifying circuit design and component selection.

Applications

• Portable instrumentation requiring precise voltage references with minimal power draw
• Battery-powered measurement systems needing long-term stability
• Data acquisition systems utilizing analog-to-digital converters
• Medical devices where space constraints and low power are critical

Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm package integrity upon receipt, as SOT-23 components are sensitive to moisture and physical damage. Check RoHS compliance documentation if environmental regulations apply to your manufacturing process. Ensure proper handling procedures are followed during assembly to prevent electrostatic discharge damage to the semiconductor junction.

Selection Notes

Select this component when fixed 1.25 V reference is required with high accuracy and low power consumption. Consider the SOT-23-3L package for space-constrained PCB layouts. Evaluate thermal management needs based on the 15 mA maximum shunt current capability. Compare against adjustable references if variable output voltages are needed instead of fixed precision.

Part Context

Part of the TS4061 family offering various fixed voltage options and accuracy grades. The A-grade variant provides tighter tolerance compared to standard versions. Designed specifically for micropower applications where traditional references consume excessive current. Complements other PMIC solutions in complete power management subsystems.

Replacement Considerations

TS4061BICT-1.225 offers similar functionality with 1.225 V output and ±0.2% accuracy in SOT-323 package. TS432AILT provides adjustable shunt reference capabilities in SOT-23-5 package. Verify pin compatibility and thermal performance when substituting with alternative voltage reference ICs from different manufacturers.