REF3230AMDBVREP Equivalent & Substitute Parts

Part Overview

The REF3230AMDBVREP is a Series Voltage Reference IC manufactured by Texas Instruments, delivering a fixed 3V output with ±0.2% tolerance in a SOT-23-6 surface mount package. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and access components with active product status and improved performance characteristics where applicable.

Substiute Parts

REF3230AMDBVREP

Texas InstrumentsIn Stock: 3360REF3230AMDBVREP Datasheet

Current PartRFQ

REF3230AIDBVT

Texas InstrumentsIn Stock: 1414REF3230AIDBVT Datasheet

MFR RecommendedRFQ

ADR3430ARJZ-R2

Analog Devices Inc.In Stock: 1428ADR3430ARJZ-R2 Datasheet

MFR RecommendedRFQ

ADR3430ARJZ-R7

Analog Devices Inc.In Stock: 4743ADR3430ARJZ-R7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the REF3230AMDBVREP is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Fixed output voltage of 3V
• Minimum output current rating of 10 mA
• SOT-23-6 surface mount package
• Input voltage range compatibility (minimum 3.05V, maximum 5.5V)
• Operating temperature range that encompasses or exceeds -55°C to 125°C
• RoHS3 compliance

Performance Differentiation Parameters:

• Tolerance (±0.2% or better)
• Temperature coefficient (lower is superior)
• Supply current consumption
• Noise characteristics
• Product status (Active preferred over Not For New Designs)

The substitute parts identified meet all mandatory compatibility criteria. Differences in tolerance, temperature coefficient, and supply current represent performance enhancements or trade-offs that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

REF3230AIDBVT (Texas Instruments)

This part maintains identical electrical specifications to the REF3230AMDBVREP with improved temperature coefficient performance (20 ppm/°C versus 40 ppm/°C). Both components share Not For New Designs status. Selection of this substitute is appropriate when maintaining Texas Instruments sourcing is required and the reduced temperature coefficient provides measurable benefit. The operating temperature range is limited to -40°C to 125°C, which excludes the lower temperature extreme of the original specification.

ADR3430ARJZ-R2 and ADR3430ARJZ-R7 (Analog Devices Inc.)

Both ADR3430 variants offer superior performance across multiple parameters: ±0.1% tolerance (versus ±0.2%), 8 ppm/°C temperature coefficient (versus 40 ppm/°C), and reduced noise characteristics. Both components carry Active product status, ensuring long-term availability and continued manufacturer support. Supply current is reduced to 100 µA. The minimum input voltage requirement increases to 3.2V, and operating temperature range is -40°C to 125°C. These substitutes are suitable for applications where improved accuracy, lower temperature drift, and active product status justify the transition to an alternative manufacturer. The ADR3430ARJZ-R7 offers higher inventory availability (4670 pcs versus 1350 pcs for R2).

Frequently Asked Questions (FAQ)

Q: Can REF3230AIDBVT be used as a direct replacement for REF3230AMDBVREP?

A: Yes, within the specified operating temperature range of -40°C to 125°C. Both parts are Texas Instruments Series Voltage Reference ICs with identical 3V output, 10 mA current rating, ±0.2% tolerance, and SOT-23-6 packaging. The REF3230AIDBVT provides improved temperature coefficient performance (20 ppm/°C). Applications requiring operation below -40°C must retain the original REF3230AMDBVREP.

Q: What are the key differences between Texas Instruments REF3230 and Analog Devices ADR3430 substitutes?

A: The ADR3430 variants provide superior accuracy (±0.1% tolerance), significantly lower temperature coefficient (8 ppm/°C), reduced noise, lower supply current (100 µA), and Active product status. The trade-off is a higher minimum input voltage requirement (3.2V versus 3.05V) and narrower operating temperature range (-40°C to 125°C versus -55°C to 125°C for the original part).

Q: Are all substitute parts available in the same SOT-23-6 package?

A: Yes. All listed substitute parts use SOT-23-6 surface mount packaging, ensuring identical PCB footprint and mounting compatibility.

Q: What is the significance of Product Status "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new circuit designs. Existing inventory may remain available, but long-term supply cannot be guaranteed. The ADR3430ARJZ-R2 and ADR3430ARJZ-R7 carry Active status, providing assurance of continued availability and manufacturer support.

Q: How does the input voltage range difference affect substitution?

A: The REF3230AMDBVREP and REF3230AIDBVT accept input voltages as low as 3.05V, while ADR3430 variants require minimum 3.2V. Applications with input supplies below 3.2V must use Texas Instruments parts. Applications with input supplies at or above 3.2V can use either manufacturer's products.

Q: What is the impact of the operating temperature range difference?

A: The REF3230AMDBVREP operates from -55°C to 125°C, while all substitute parts operate from -40°C to 125°C. Applications requiring operation below -40°C must use the original REF3230AMDBVREP. Applications within -40°C to 125°C can use any listed substitute.

Q: Which substitute offers the best overall performance?

A: The ADR3430ARJZ-R7 provides the best performance combination: ±0.1% tolerance, 8 ppm/°C temperature coefficient, 22 µVp-p noise (0.1Hz to 10Hz), 100 µA supply current, Active product status, and highest inventory availability (4670 pcs). Selection depends on whether the application constraints permit the higher minimum input voltage (3.2V) and narrower operating temperature range (-40°C to 125°C).