TS3320AMR

Overview

The TS3320AMR is a micropower high precision series voltage reference manufactured by STMicroelectronics. It provides a fixed output voltage of 1.25 V with an initial accuracy of +/-0.15%. The device features an ultra-low operating current of 3.9 μA (typical) at 25 °C and maintains stability when used with capacitive loads. It operates within an extended temperature range from -40 °C to +125 °C, with a maximum temperature coefficient of 30 ppm/°C. The component is available in SOT23-3L packages.

Feature Summary

• Provides stable and precise fixed output voltage
• Ultra-low operating current for power-restricted designs
• High initial accuracy over extended temperature range
• Stable operation with capacitive loads

Applications

• Battery-powered instrumentation
• Portable measurement devices
• Data acquisition systems requiring stable references

Procurement Notes

Verify the specific package variant and tape-and-reel configuration against the official datasheet before procurement. Confirm that the ordering suffix matches the required packaging format. Ensure compatibility with the target PCB footprint and soldering profile. Check for any recent product change notifications regarding manufacturing updates or material substitutions.

Selection Notes

Select this component for applications demanding low quiescent current and high precision in a compact form factor. The SOT23-3L package suits space-constrained designs. Consider the 1.25 V output level relative to the system's ADC or comparator input requirements. Evaluate the thermal environment to ensure performance remains within specified limits across the full industrial temperature range.

Part Context

This part belongs to the TS33 family of micropower series voltage references from STMicroelectronics. The family includes variants with different fixed output voltages such as 2.048 V, 2.5 V, 3.0 V, and 3.3 V. All members share similar characteristics including low power consumption, high accuracy, and availability in multiple small outline packages like QFN8, SOT23-3L, and SOT323-3L.

Replacement Considerations

Compatible substitutes include other parts from the TS33 family with equivalent voltage outputs and package types. Verify pinout compatibility and electrical specifications against the original datasheet before substitution.