REF3220AIDBVR Equivalent & Substitute Parts

Part Overview

The REF3220AIDBVR is a Series Voltage Reference IC manufactured by Texas Instruments, designed to provide a fixed 2.048V output with ±0.2% tolerance. This component operates as a precision voltage reference for analog circuits requiring stable reference voltages across industrial temperature ranges. The part is Active in product status and widely used in power management applications where accurate voltage references are critical for circuit performance. Substitute parts may be required due to inventory constraints, packaging preferences, or application-specific performance requirements.

Substiute Parts

REF3220AIDBVR

Texas InstrumentsIn Stock: 2083REF3220AIDBVR Datasheet

Current PartRFQ

REF3220AIDBVT

Texas InstrumentsIn Stock: 3151REF3220AIDBVT Datasheet

Parametric EquivalentRFQ

ADR3420ARJZ-R2

Analog Devices Inc.In Stock: 1870ADR3420ARJZ-R2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the REF3220AIDBVR is determined by the following critical parameters:

• Fixed output voltage of 2.048V
• SOT-23-6 surface mount package
• Operating temperature range of -40°C to 125°C
• Series reference type with fixed output configuration
• 10 mA output current capability
• Input voltage range compatibility (2.098V minimum or lower)

Parts meeting these core electrical and mechanical specifications are classified as parametric equivalents or manufacturer-recommended alternatives. Variations in tolerance, temperature coefficient, noise characteristics, and supply current represent performance enhancements or trade-offs that do not prevent functional substitution when circuit requirements permit.

Parameter Comparison

Engineering Selection Recommendations

REF3220AIDBVT (Parametric Equivalent)

The REF3220AIDBVT is a direct parametric equivalent to the REF3220AIDBVR, manufactured by Texas Instruments. Both parts share identical electrical specifications including 2.048V fixed output, ±0.2% tolerance, 20ppm/°C temperature coefficient, and SOT-23-6 packaging. The primary distinction is packaging format: REF3220AIDBVT is supplied in Tape & Reel (TR) configuration versus the standard packaging of the main part. Both parts maintain Active product status and ROHS3 compliance. Selection between these two is determined by procurement and assembly requirements rather than electrical performance.

ADR3420ARJZ-R2 (Manufacturer-Recommended Alternative)

The ADR3420ARJZ-R2, manufactured by Analog Devices Inc., is a manufacturer-recommended substitute offering enhanced performance characteristics. This part maintains the same 2.048V fixed output voltage, 10 mA output current, and SOT-23-6 package as the REF3220AIDBVR. Performance improvements include tighter tolerance (±0.1% versus ±0.2%), lower temperature coefficient (8ppm/°C versus 20ppm/°C), reduced low-frequency noise (15µVp-p versus 27µVp-p), and lower supply current (100µA versus 135µA). The ADR3420ARJZ-R2 features MSL 1 rating (Unlimited) compared to MSL 2 (1 Year) for the main part. Input voltage minimum is 2.3V, which is higher than the REF3220AIDBVR's 2.098V minimum. Both parts are Active and ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can REF3220AIDBVT be used as a direct replacement for REF3220AIDBVR?

A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications: 2.048V fixed output, ±0.2% tolerance, 20ppm/°C temperature coefficient, 10 mA output current, and SOT-23-6 packaging. The difference is packaging format (Tape & Reel versus standard). No circuit modifications are required.

Q: What are the advantages of using ADR3420ARJZ-R2 over REF3220AIDBVR?

A: The ADR3420ARJZ-R2 provides superior performance in three areas: tighter output tolerance (±0.1% versus ±0.2%), lower temperature coefficient (8ppm/°C versus 20ppm/°C), and reduced low-frequency noise (15µVp-p versus 27µVp-p). Supply current is also lower (100µA versus 135µA). Moisture sensitivity is improved to MSL 1 (Unlimited) versus MSL 2 (1 Year).

Q: Are there any limitations when substituting ADR3420ARJZ-R2 for REF3220AIDBVR?

A: The ADR3420ARJZ-R2 has a minimum input voltage of 2.3V, compared to 2.098V for the REF3220AIDBVR. If your circuit operates with input voltages below 2.3V, the ADR3420ARJZ-R2 is not suitable. All other electrical and mechanical parameters are compatible.

Q: Do all substitute parts use the same SOT-23-6 package?

A: Yes. REF3220AIDBVR, REF3220AIDBVT, and ADR3420ARJZ-R2 all use SOT-23-6 surface mount packaging. PCB layout and footprints are identical across all three parts.

Q: Are all parts RoHS compliant?

A: Yes. REF3220AIDBVR, REF3220AIDBVT, and ADR3420ARJZ-R2 are all ROHS3 compliant and REACH unaffected.

Q: What is the difference between REF3220AIDBVR and REF3220AIDBVT packaging?

A: REF3220AIDBVR uses standard packaging, while REF3220AIDBVT is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated assembly processes. Electrical performance is identical.