MAX4173TESA-T Equivalent & Substitute Parts

Part Overview

The MAX4173TESA-T is a current sense amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for single-circuit current sensing applications in 8-SOIC surface mount packaging. This component operates across a wide supply voltage range of 3V to 28V with a -3dB bandwidth of 1.7 MHz, making it suitable for precision current measurement in industrial and automotive applications.

The MAX4173TESA-T is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance where this component is specified in existing designs.

Substiute Parts

MAX4173TESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 852MAX4173TESA-T Datasheet

Current PartRFQ

MAX4173TESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3649MAX4173TESA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4173TESA-T is determined by strict equivalence across the following critical parameters:

Functional Parameters:

• Amplifier type classification as current sense amplifier
• Single circuit configuration
• Identical -3dB bandwidth of 1.7 MHz
• Matching input bias current of 700 µA
• Identical input offset voltage of 300 µV
• Matching supply current of 420 µA

Electrical Operating Range:

• Supply voltage span from 3V minimum to 28V maximum
• Operating temperature range of -40°C to 85°C

Physical & Packaging Specifications:

• Surface mount mounting type
• 8-SOIC package with 0.154" (3.90mm) width
• Identical supplier device package designation

Compliance & Regulatory:

• ROHS3 compliance requirement
• MSL Level 1 (Unlimited) moisture sensitivity classification

Parts meeting all these criteria are classified as direct substitutes. The MAX4173TESA+T satisfies all substitution parameters while differing only in product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

MAX4173TESA+T as Primary Substitute:

The MAX4173TESA+T is the direct functional and electrical equivalent of the MAX4173TESA-T. All electrical parameters, operating ranges, and physical package specifications are identical. The primary distinction is product status: the MAX4173TESA+T is classified as active, whereas the original MAX4173TESA-T is obsolete.

For new designs or system updates, the MAX4173TESA+T is the appropriate selection. This part maintains full compatibility with existing PCB layouts and circuit designs while ensuring ongoing manufacturer support and supply chain availability.

Compliance Considerations:

Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity classification, satisfying regulatory requirements for industrial and automotive applications across the specified operating temperature range of -40°C to 85°C.

Packaging Format:

The MAX4173TESA+T is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, which are standard for high-volume production environments. The original MAX4173TESA-T packaging format is not specified in available data. Verify packaging requirements for your procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the MAX4173TESA+T be used as a direct replacement for the MAX4173TESA-T in existing designs?

A: Yes. The MAX4173TESA+T is electrically and functionally identical to the MAX4173TESA-T across all specified parameters. No circuit modifications are required. Both parts share identical pin configurations, electrical characteristics, and 8-SOIC package dimensions.

Q: Why is the MAX4173TESA-T classified as obsolete?

A: Product obsolescence is determined by the manufacturer based on production lifecycle decisions. The MAX4173TESA+T remains in active production and serves as the current equivalent for this current sense amplifier function.

Q: Are there differences in electrical performance between these parts?

A: No. Both parts exhibit identical electrical specifications: 1.7 MHz bandwidth, 700 µA input bias current, 300 µV input offset voltage, 420 µA supply current, and 3V to 28V supply voltage range. Operating temperature range is identical at -40°C to 85°C.

Q: What is the difference between the MAX4173TESA-T and MAX4173TESA+T part numbers?

A: The suffix designations (-T versus +T) indicate different packaging and distribution formats. The MAX4173TESA+T is supplied in Cut Tape (CT) and Digi-Reel® formats for automated assembly. The electrical and functional specifications are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the MAX4173TESA-T and MAX4173TESA+T are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity classification, meeting environmental and regulatory requirements for industrial applications.

Q: Can I use the MAX4173TESA+T in legacy systems designed for the MAX4173TESA-T?

A: Yes. The MAX4173TESA+T is a direct substitute for legacy designs. The identical package, pin configuration, and electrical specifications ensure compatibility with existing PCB layouts and circuit implementations without design modifications.

Q: What is the current supply requirement for this amplifier?

A: Both parts draw 420 µA supply current, enabling low-power operation in battery-powered and energy-constrained applications.

Q: What is the input offset voltage specification?

A: The input offset voltage is 300 µV for both parts, providing precision current sensing with minimal DC error in measurement circuits.