REF3333AIDCKT

Overview

The REF3333AIDCKT is a fixed-output series voltage reference from Texas Instruments, delivering a nominal 3.3 V output with an initial accuracy of ±0.15%. It operates within an input voltage range of 3.5 V to 5.5 V and supports a maximum load current of 5 mA. The device features a low quiescent current of 3.9 µA and a temperature coefficient of 30 ppm/°C. It functions reliably across an extended temperature range of -40°C to +125°C and is housed in a compact SC-70-3 surface-mount package.

Feature Summary

• Provides stable 3.3 V reference with high initial accuracy
• Ultra-low power consumption suitable for battery applications
• Compact SC-70-3 footprint for space-constrained designs

Applications

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

Procurement Notes

Verify the specific suffix 'CKT' corresponds to the SC-70-3 tape-and-reel packaging configuration. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the ordering quantity aligns with the manufacturer's standard reel size specifications to avoid partial reel handling issues.

Selection Notes

Select this component when a 3.3 V reference with tight initial tolerance is required alongside minimal power draw. The SC-70-3 package offers a smaller footprint compared to SOT-23 alternatives. Consider the 30 ppm/°C drift specification against thermal environment requirements to ensure long-term stability meets system accuracy goals.

Part Context

This part belongs to the REF33xx family of CMOS voltage references designed for low-power applications. It shares core electrical characteristics with other variants in the series, differing primarily in output voltage and physical package type. The SC-70-3 variant provides a compact solution for modern surface-mount assembly processes.