REF3120AIDBZRG4

Overview

The REF3120AIDBZRG4 is a precision series voltage reference from Texas Instruments, delivering a fixed output of 2.048 V with an initial accuracy of ±0.2%. It operates within an input voltage range of 2.098 V to 5.5 V and draws a maximum supply current of 100 µA. The device features a low temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 10 mA. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• Provides stable 2.048 V output with high initial accuracy
• Maintains performance over wide temperature variations
• Optimized for low power consumption applications

Applications

• Portable instrumentation systems
• Battery-powered measurement devices
• Data acquisition signal conditioning

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm compliance status and revision details. Ensure the ordering code matches the required tape-and-reel packaging format. Cross-reference the component marking with official silkscreen guides to prevent counterfeit identification during incoming inspection.

Selection Notes

Select this component when a precise 2.048 V reference is required alongside strict power constraints. The low quiescent current makes it suitable for battery-operated designs. Verify that the load current requirements do not exceed the 10 mA shunt limit and that the input voltage remains within the specified operational window for optimal regulation.

Part Context

This part belongs to the REF31xx family of micropower voltage references designed for space-constrained applications. It shares the SOT-23-3 footprint with other variants in the series but offers specific electrical characteristics tailored for high-precision analog circuits requiring minimal board area and low standby power dissipation.

Replacement Considerations

REF3120AIDBZT