REF3220AMDBVREP

Overview

The REF3220AMDBVREP is a micropower series voltage reference IC manufactured by Texas Instruments, housed in a SOT-23-6 surface-mount package. It provides a fixed output voltage of 2.048V with an initial accuracy tolerance of ±0.2%. The device operates within an input voltage range of 2.098V to 5.5V and draws a supply current of 120µA. It supports a maximum output current of 10mA and features a temperature coefficient of 40ppm/°C. Noise performance is specified at 27µVp-p from 0.1Hz to 10Hz and 39µVrms from 10Hz to 10kHz. The component is rated for an operating temperature range of -55°C to 125°C.

Feature Summary

• Provides high-precision fixed voltage reference with low initial accuracy tolerance
• Designed for micropower applications with minimal supply current consumption
• Capable of sourcing significant load current relative to its power profile
• Engineered for stability across wide industrial temperature extremes

Applications

• Precision data acquisition systems requiring stable reference voltages
• Battery-powered instrumentation benefiting from low quiescent current
• Industrial process control loops utilizing wide temperature range components
• Medical equipment demanding high accuracy and reliability

Procurement Notes

Verify the specific suffix 'REP' indicates enhanced product status or military qualification requirements as defined by Texas Instruments documentation. Confirm that the SOT-23-6 package matches your PCB footprint constraints. Ensure the fixed 2.048V output aligns with your system design needs, as this parameter cannot be adjusted. Check for any specific handling instructions related to moisture sensitivity level classification during assembly.

Selection Notes

Select this component when a fixed 2.048V reference is required with tight initial accuracy specifications. Consider the 120µA supply current for battery life calculations in portable devices. Evaluate the 40ppm/°C temperature coefficient against your thermal environment to ensure long-term stability meets system error budgets. Verify that the 10mA output capability satisfies the maximum load current demands of your downstream circuitry without exceeding thermal limits.

Part Context

This part belongs to the REF32xx family of precision voltage references from Texas Instruments. The 'REP' suffix typically denotes an enhanced product version, often associated with extended testing or specific qualification standards compared to standard commercial variants. It serves as a foundational analog building block for signal conditioning chains where noise and drift must be minimized.

Replacement Considerations

Publicly confirmed substitute part numbers include REF3220AIDBVT, ADR3420ARJZ-R7, and REF3220AMDBVR.