REF3225AIDBVRG4 Equivalent & Substitute Parts

Part Overview

The REF3225AIDBVRG4 is a series voltage reference IC from Texas Instruments, delivering a fixed 2.5V output with ±0.2% tolerance in a SOT-23-6 surface mount package. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing production and design updates. The REF3225AIDBVRG4 serves applications requiring stable voltage references with moderate accuracy specifications and low output current requirements up to 10 mA.

Substiute Parts

REF3225AIDBVRG4

Texas InstrumentsIn Stock: 36454REF3225AIDBVRG4 Datasheet

Current PartRFQ

REF3225AIDBVR

Texas InstrumentsIn Stock: 19703REF3225AIDBVR Datasheet

MFR RecommendedRFQ

REF3425IDBVR

Texas InstrumentsIn Stock: 31576REF3425IDBVR Datasheet

MFR RecommendedRFQ

REF3225AIDBVT

Texas InstrumentsIn Stock: 7414REF3225AIDBVT Datasheet

Parametric EquivalentRFQ

ADR3425ARJZ-R7

Analog Devices Inc.In Stock: 40505ADR3425ARJZ-R7 Datasheet

MFR RecommendedRFQ

MAX6071AAUT25+T

Analog Devices Inc./Maxim IntegratedIn Stock: 22739MAX6071AAUT25+T Datasheet

MFR RecommendedRFQ

MAX6071BAUT25+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1582MAX6071BAUT25+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the REF3225AIDBVRG4 is determined by the following critical parameters:

Primary Substitution Criteria:

• Fixed output voltage of 2.5V
• Output current capability of 10 mA minimum
• SOT-23-6 package compatibility
• Operating temperature range of -40°C to 125°C
• Surface mount mounting type

Secondary Compatibility Factors:

• Input voltage range overlap (minimum 2.55V to 5.5V)
• Tolerance specification (±0.2% or better)
• Supply current performance
• RoHS3 compliance

Substitute parts are grouped into two categories: direct parametric equivalents (matching all primary criteria) and performance-enhanced alternatives (superior tolerance and temperature coefficient specifications while maintaining package and voltage compatibility).

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalents (Identical Specifications): REF3225AIDBVR and REF3225AIDBVT are parametric equivalents with identical electrical specifications to the REF3225AIDBVRG4. Both parts are marked "Not For New Designs," indicating limited long-term availability. These are suitable for legacy system maintenance and repair applications where exact specification matching is required.

Performance-Enhanced Alternatives (Active Status): REF3425IDBVR, ADR3425ARJZ-R7, MAX6071AAUT25+T, and MAX6071BAUT25+T are all active production parts with superior performance characteristics. These alternatives maintain the 2.5V fixed output, 10 mA output current, and SOT-23-6 package compatibility while offering improved tolerance and temperature coefficient specifications.

REF3425IDBVR (Texas Instruments, Active) provides ±0.05% tolerance and 6ppm/°C temperature coefficient with reduced supply current (95µA). Input voltage range extends to 12V, suitable for higher supply voltage applications.

ADR3425ARJZ-R7 (Analog Devices Inc., Active) offers ±0.1% tolerance and 8ppm/°C temperature coefficient with 100µA supply current. Moisture sensitivity level is 1 (Unlimited), providing superior moisture handling compared to MSL 2 specifications.

MAX6071AAUT25+T (Analog Devices Inc./Maxim Integrated, Active) delivers the tightest tolerance at ±0.04% with 6ppm/°C temperature coefficient. Supply current is 300µA, higher than the original part but acceptable for applications with adequate power budgets.

MAX6071BAUT25+T (Analog Devices Inc./Maxim Integrated, Active) provides ±0.08% tolerance with 8ppm/°C temperature coefficient and 300µA supply current, offering a balance between performance and power consumption.

All recommended alternatives are RoHS3 compliant and operate across the -40°C to 125°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can REF3225AIDBVR or REF3225AIDBVT be used as direct replacements for REF3225AIDBVRG4? A: Yes. Both parts are parametric equivalents with identical electrical specifications, package type (SOT-23-6), and operating temperature range. The primary difference is product status; both are marked "Not For New Designs," indicating limited future availability. They are suitable for maintenance and repair of existing systems.

Q: What is the key difference between REF3225AIDBVRG4 and REF3425IDBVR? A: REF3425IDBVR offers superior accuracy (±0.05% vs. ±0.2%) and lower temperature coefficient (6ppm/°C vs. 20ppm/°C). It also has lower supply current (95µA vs. 135µA) and extended input voltage range (3V ~ 12V vs. 2.55V ~ 5.5V). Both maintain 2.5V output, 10 mA output current, and SOT-23-6 packaging. REF3425IDBVR is an active production part.

Q: Are the Maxim Integrated MAX6071 parts compatible with REF3225AIDBVRG4? A: Yes, both MAX6071AAUT25+T and MAX6071BAUT25+T are compatible. They provide the same 2.5V output, 10 mA output current, and SOT-23-6 package. Both offer superior tolerance specifications (±0.04% and ±0.08% respectively) compared to the original ±0.2%. Supply current is higher at 300µA. Both are active production parts.

Q: What is the impact of higher supply current in the MAX6071 alternatives? A: The MAX6071 series draws 300µA supply current compared to 135µA in the REF3225AIDBVRG4. This increased current consumption affects power budget calculations but does not impact the voltage reference output characteristics or compatibility with existing circuit designs. Applications with strict power constraints should evaluate this parameter against performance requirements.

Q: Can I use ADR3425ARJZ-R7 in place of REF3225AIDBVRG4? A: Yes. ADR3425ARJZ-R7 maintains the 2.5V output, 10 mA output current, and SOT-23-6 package. It offers improved tolerance (±0.1% vs. ±0.2%) and lower temperature coefficient (8ppm/°C vs. 20ppm/°C). Supply current is 100µA, lower than the original 135µA. Input voltage range is 2.7V ~ 5.5V, which overlaps with the original 2.55V ~ 5.5V specification. ADR3425ARJZ-R7 is an active production part from Analog Devices Inc.

Q: What does "Not For New Designs" status mean? A: Parts marked "Not For New Designs" are in limited production and may have restricted availability. They are suitable for maintaining existing products and repair applications but should not be selected for new product development. Active production parts (REF3425IDBVR, ADR3425ARJZ-R7, MAX6071AAUT25+T, MAX6071BAUT25+T) are recommended for new designs.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are RoHS3 compliant, matching the compliance status of the REF3225AIDBVRG4.