REF3220AIDBVTG4

Overview

The REF3220AIDBVTG4 is a precision series voltage reference IC manufactured by Texas Instruments, housed in an SOT-23-6 surface-mount package. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.2% and a temperature coefficient of 20 ppm/°C. The device operates within an input voltage range of 2.098 V to 5.5 V and draws a supply current of 135 µA. It supports a maximum load current of 10 mA and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial accuracy tolerance
• Features low temperature coefficient for stable performance across wide thermal ranges
• Operates efficiently with low quiescent current consumption suitable for battery-powered systems

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage benchmarks
• Industrial process control instrumentation
• Medical equipment signal conditioning circuits

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS status before procurement. Confirm the SOT-23-6 package variant matches your PCB footprint requirements. Check manufacturer documentation for moisture sensitivity level handling procedures during assembly. Ensure input voltage remains above the minimum dropout threshold for proper regulation.

Selection Notes

Select this component when a fixed 2.048 V reference is required with higher accuracy than standard shunt types. Compare against the REF3320 if lower power consumption is critical, noting the trade-off in current draw. Consider the REF3220 family for integrated noise filtering capabilities. Verify that the 135 µA supply current fits within the system's power budget constraints.

Part Context

This part belongs to the REF32xx series of precision voltage references designed for general-purpose applications. It complements other Texas Instruments PMIC components like the TPS62201 buck converter in power management chains. The SOT-23-6 package allows for compact design integration compared to larger through-hole alternatives.

Replacement Considerations

Direct pin-compatible substitutes include the REF3220AIDBVR and REF3220AIDBVT without the G4 suffix, provided lead-free compliance is not strictly mandated by regulatory requirements.