REF3225AMDBVREP Equivalent & Substitute Parts

Part Overview

The REF3225AMDBVREP is a series voltage reference IC manufactured by Texas Instruments, delivering a fixed 2.5V output with ±0.2% tolerance in a SOT-23-6 surface mount package. This device is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent or substitute parts is necessary for applications requiring continued supply, design updates, or performance optimization while maintaining functional compatibility.

Substiute Parts

REF3225AMDBVREP

Texas InstrumentsIn Stock: 1610REF3225AMDBVREP Datasheet

Current PartRFQ

REF3225AIDBVT

Texas InstrumentsIn Stock: 7414REF3225AIDBVT Datasheet

MFR RecommendedRFQ

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 eligibility for the REF3225AMDBVREP is determined by the following critical parameters:

• Fixed output voltage of 2.5V
• Output current capability of 10 mA minimum
• SOT-23-6 package compatibility
• Input voltage range overlap (minimum 2.55V to 5.5V)
• Surface mount technology
• Operating temperature range compatibility

Substitute parts must maintain the same output voltage and package form factor. Tolerance, temperature coefficient, and noise specifications may vary, provided the substitute meets or exceeds the performance requirements of the application. All substitute parts listed are ROHS3 compliant and suitable for surface mount assembly.

Parameter Comparison

Engineering Selection Recommendations

REF3225AIDBVT (Texas Instruments): This part maintains Texas Instruments sourcing with identical output voltage and tolerance specifications. It is classified as Not For New Designs, matching the status of the original part. Selection is appropriate for direct replacement in existing designs where supply continuity is the primary objective. The lower temperature coefficient (20ppm/°C versus 40ppm/°C) provides improved thermal stability.

ADR3425ARJZ-R7 (Analog Devices Inc.): This part carries Active product status, ensuring long-term availability and manufacturer support. It delivers superior tolerance (±0.1%), lower temperature coefficient (8ppm/°C), and reduced noise performance. The input voltage range begins at 2.7V, which is compatible with the original 2.55V minimum specification for most applications. Supply current is reduced to 100µA. This part is recommended for new designs or applications requiring enhanced performance metrics.

MAX6071AAUT25+T (Analog Devices Inc./Maxim Integrated): This part offers the highest performance specification with ±0.04% tolerance, 6ppm/°C temperature coefficient, and significantly reduced noise (4.8µVp-p, 6µVrms). Product status is Active with MSL rating of 1 (Unlimited), indicating superior moisture handling. The input voltage minimum of 2.8V is compatible with standard 3.3V and 5V supply rails. Supply current is 300µA. Selection is appropriate for precision analog applications where output voltage stability and low noise are critical.

MAX6071BAUT25+T (Analog Devices Inc./Maxim Integrated): This part provides intermediate performance between the ADR3425ARJZ-R7 and MAX6071AAUT25+T, with ±0.08% tolerance and 8ppm/°C temperature coefficient. Active product status and MSL rating of 1 (Unlimited) ensure long-term supply availability. Supply current is 300µA. Selection is appropriate for applications requiring improved performance over the original part while managing power consumption constraints.

Frequently Asked Questions (FAQ)

Q: Can REF3225AIDBVT be used as a direct replacement for REF3225AMDBVREP?

A: Yes. Both parts are manufactured by Texas Instruments, deliver 2.5V fixed output with ±0.2% tolerance, and are packaged in SOT-23-6. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and a lower temperature coefficient in the substitute. Electrical performance is equivalent for most applications.

Q: What is the key advantage of ADR3425ARJZ-R7 over the original REF3225AMDBVREP?

A: ADR3425ARJZ-R7 carries Active product status, ensuring continued manufacturer support and long-term availability. It also delivers superior tolerance (±0.1% versus ±0.2%), lower temperature coefficient (8ppm/°C versus 40ppm/°C), and reduced noise performance. The input voltage range of 2.7V to 5.5V is compatible with standard supply rails.

Q: When should MAX6071AAUT25+T be selected over other substitutes?

A: MAX6071AAUT25+T is selected for precision analog applications where output voltage stability and low noise are critical design requirements. The ±0.04% tolerance and 6ppm/°C temperature coefficient provide superior performance. The MSL rating of 1 (Unlimited) is advantageous for long-term storage and humid environments.

Q: Are all substitute parts compatible with the original SOT-23-6 footprint?

A: Yes. All substitute parts listed are packaged in SOT-23-6 and are compatible with the original printed circuit board layout. Surface mount assembly processes remain unchanged.

Q: What is the impact of increased supply current in the MAX6071 series?

A: The MAX6071AAUT25+T and MAX6071BAUT25+T require 300µA supply current compared to 120µA in the original part. This increase must be evaluated in applications with strict power budgets. For most general-purpose voltage reference applications, this difference is negligible.

Q: Can parts with different input voltage minimums be used interchangeably?

A: Input voltage range differences must be evaluated against the actual supply voltage in the application. The original part specifies 2.55V minimum; substitutes with 2.7V or 2.8V minimums are compatible with standard 3.3V and 5V supplies. Applications with lower supply voltages require verification of the substitute's input range.

Q: What does "Not For New Designs" product status mean?

A: This designation indicates the manufacturer has superseded the part in their product line. While existing inventory may be available, the manufacturer does not recommend its use in new designs. Active status parts (ADR3425ARJZ-R7, MAX6071AAUT25+T, MAX6071BAUT25+T) are preferred for new development.