MAX4071ATA-T Equivalent & Substitute Parts

Part Overview

The MAX4071ATA-T is a current sense amplifier IC manufactured by Analog Devices Inc./Maxim Integrated, designed for single-circuit current sensing applications. This device integrates a precision amplifier in an 8-TDFN (3x3) surface mount package with exposed pad, suitable for low-voltage to moderate-voltage power management and monitoring circuits.

The MAX4071ATA-T carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications currently utilizing this component.

Substiute Parts

MAX4071ATA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1148MAX4071ATA-T Datasheet

Current PartRFQ

MAX4071ATA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1045MAX4071ATA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4071ATA-T is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier Type: Current Sense (single circuit)
• -3dB Bandwidth: 100 kHz
• Current - Input Bias: 2.4 µA
• Voltage - Input Offset: 80 µV
• Current - Supply: 100 µA
• Voltage - Supply Span: 2.7 V to 24 V
• Operating Temperature Range: -40°C to 125°C

Mechanical & Packaging Equivalence Criteria:

• Mounting Type: Surface Mount
• Package / Case: 8-WDFN Exposed Pad
• Supplier Device Package: 8-TDFN (3x3)

Compliance Equivalence Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part MAX4071ATA+T meets all electrical, mechanical, and compliance requirements specified above. The primary distinction is product status: MAX4071ATA-T is Obsolete, while MAX4071ATA+T is Active. Both parts share identical base product number MAX4071 and are manufactured by Analog Devices Inc./Maxim Integrated.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MAX4071ATA+T

The MAX4071ATA+T is the direct functional equivalent of the MAX4071ATA-T. All electrical parameters, mechanical specifications, and compliance certifications are identical. The MAX4071ATA+T carries Active product status, ensuring ongoing manufacturer support, availability, and supply chain continuity.

Rationale for Substitution:

1. Product Status Transition: The MAX4071ATA-T is classified as Obsolete. The MAX4071ATA+T is the Active equivalent, manufactured to the same specifications by Analog Devices Inc./Maxim Integrated.

2. Electrical Compatibility: All critical electrical parameters match exactly, including bandwidth, input bias current, input offset voltage, supply current, and supply voltage range. The device operates identically across the full temperature range of -40°C to 125°C.

3. Mechanical Compatibility: Both parts use identical 8-TDFN (3x3) surface mount packaging with exposed pad. PCB footprints and thermal characteristics are equivalent.

4. Compliance Alignment: Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental standards.

5. Supply Chain Advantage: The MAX4071ATA+T is available in standard packaging formats (Cut Tape and Digi-Reel), supporting efficient procurement and production workflows.

Frequently Asked Questions (FAQ)

Q: Can MAX4071ATA+T be used as a direct replacement for MAX4071ATA-T in existing designs?

A: Yes. The MAX4071ATA+T is electrically and mechanically identical to the MAX4071ATA-T. No circuit modifications, PCB layout changes, or firmware updates are required. The parts are pin-for-pin compatible and functionally equivalent.

Q: What is the difference between MAX4071ATA-T and MAX4071ATA+T?

A: The primary difference is product status. MAX4071ATA-T is Obsolete, while MAX4071ATA+T is Active. The suffix designation (+T vs. -T) reflects packaging format differences, but electrical and mechanical specifications are identical. MAX4071ATA+T is available in standard Cut Tape and Digi-Reel packaging formats.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate within the same temperature range (-40°C to 125°C) and deliver identical electrical performance. Supply current, bandwidth, input offset voltage, and input bias current specifications are equivalent.

Q: Is the 8-TDFN (3x3) package the same for both parts?

A: Yes. Both MAX4071ATA-T and MAX4071ATA+T use the 8-WDFN Exposed Pad package in 8-TDFN (3x3) form factor. PCB footprints are identical, and thermal performance characteristics are equivalent.

Q: Do both parts meet current RoHS and environmental compliance standards?

A: Yes. Both MAX4071ATA-T and MAX4071ATA+T are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting current environmental and manufacturing standards.

Q: Why should I transition from MAX4071ATA-T to MAX4071ATA+T?

A: The MAX4071ATA-T is Obsolete and subject to discontinuation. Transitioning to MAX4071ATA+T ensures long-term supply availability, ongoing manufacturer support, and compatibility with future production requirements. No design changes are necessary.

Q: What is the inventory status of these parts?

A: MAX4071ATA-T has 1106 pieces in stock (Obsolete status). MAX4071ATA+T has 989 pieces in stock (Active status). For new designs and long-term production, MAX4071ATA+T is the recommended choice.