REF3320AIDCKTG4

Overview

The REF3320AIDCKTG4 is a precision series voltage reference manufactured by Texas Instruments, delivering a fixed output of 2.048 V with an initial accuracy of 0.15%. It operates within a supply voltage range up to 5.5 V and consumes only 3.9 µA of quiescent current. The device features a temperature coefficient of 30 ppm/°C and supports a maximum shunt current of 5 mA. It is housed in a compact SC-70-3 surface-mount package and functions reliably across an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• High precision with low initial error and stable temperature drift
• Compact SC-70-3 footprint for space-constrained designs

Applications

• Portable instrumentation requiring high accuracy
• Battery-powered data acquisition systems
• Precision analog-to-digital converter references

Procurement Notes

Verify the suffix G4 indicates RoHS compliance and lead-free construction per Texas Instruments standards. Confirm the SC-70-3 package matches your PCB footprint requirements. Check humidity sensitivity classification for proper storage and reflow soldering profiles. Ensure the 2.048 V output aligns with your system voltage requirements before procurement.

Selection Notes

Select this component when a fixed 2.048 V reference is required with minimal power draw. The 0.15% initial accuracy suits applications needing tight tolerance without external trimming. Consider the SC-70-3 package size against available board space. Verify that the 5.5 V maximum input voltage covers your supply rail variations.

Part Context

This part belongs to the REF33xx family of low-power voltage references from Texas Instruments. It shares architectural similarities with other members like the REF3312 and REF3330 but provides a specific 2.048 V output. The G4 suffix denotes environmental compliance. It serves as a stable reference source for mixed-signal circuits where power efficiency and precision are critical design constraints.

Replacement Considerations

The REF3320AIDCKT is the non-RoHS compliant equivalent. For different voltages, consider REF3312 (1.25 V) or REF3330 (3 V). Package alternatives include SOT-23-3 variants like REF3320AIDBZTG4 if pinout compatibility allows.