REF3312AIDCKRG4

Overview

The REF3312AIDCKRG4 is a precision series voltage reference manufactured by Texas Instruments, providing 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 draws 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. The component is housed in a compact SC70-3 surface-mount package.

Feature Summary

• Delivers high-precision voltage regulation with low initial error tolerance
• Optimized for ultra-low power consumption suitable for battery-operated systems
• Maintains stable performance across wide industrial temperature variations

Applications

• Portable instrumentation requiring precise analog references
• Battery-powered measurement devices
• Data acquisition systems needing stable voltage sources

Procurement Notes

Verify the End-of-Life status before procurement planning. Confirm that the SC70-3 package meets your PCB layout requirements. Ensure compatibility with existing design specifications regarding input voltage limits and thermal management constraints during integration.

Selection Notes

Select this component when low quiescent current and moderate precision are required in minimal space. Compare against higher accuracy or lower noise alternatives if system demands exceed the specified drift and initial accuracy limits. Verify humidity sensitivity handling during storage and assembly processes.

Part Context

This part belongs to the REF3312 family of voltage references from Texas Instruments. It shares core electrical characteristics with other variants in the series but differs in packaging and specific ordering suffixes. The SC70-3 form factor distinguishes it from larger footprint options within the same product line.

Replacement Considerations

Check for direct substitutes within the REF3312 family such as REF3312AIRSER for different packaging needs. Evaluate cross-family alternatives only if pinout and electrical parameters align perfectly with the original design requirements.