REF3312AIDCKTG4

Overview

The REF3312AIDCKTG4 is a precision series voltage reference from Texas Instruments, delivering a fixed output of 1.25 V with an initial accuracy of ±0.15%. It operates within an input voltage range of 1.7 V to 5.5 V and consumes a typical supply current of 3.9 µA. The device features a temperature coefficient of 30 ppm/°C and supports a maximum shunt current of 5 mA. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in a compact SC-70-3 surface-mount package.

Feature Summary

• Provides high-precision fixed voltage output with tight initial accuracy tolerance
• Features low power consumption suitable for battery-operated applications
• Ensures stable performance over wide industrial temperature ranges

Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement systems
• Data acquisition channels

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm the specific suffix matches the required package and tape-and-reel specifications. Check for recent Product Change Notifications regarding manufacturing site updates or material changes. Ensure storage conditions comply with moisture sensitivity level requirements before soldering.

Selection Notes

Select this component when a fixed 1.25 V reference is required in a minimal footprint. Consider the 3.9 µA quiescent current for power-sensitive designs. Verify that the 5 mA maximum load capability meets circuit demands. Compare thermal drift characteristics against application stability requirements.

Part Context

This part belongs to the REF3312 family of micropower voltage references. It shares core electrical specifications with other variants in the series but differs in packaging and ordering suffixes. The family targets applications needing high accuracy in small form factors.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio. Verify equivalent electrical parameters such as output voltage, accuracy, and temperature coefficient. Confirm package dimensions match existing board layouts.