MAX4173HESA Equivalent & Substitute Parts

Part Overview

The MAX4173HESA is a current sense amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for precision current measurement applications. This integrated circuit contains one current sensing circuit in an 8-SOIC surface mount package and operates across a supply voltage range of 3 V to 28 V with an operating temperature range of -40°C to 85°C.

The MAX4173HESA is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications utilizing this current sense amplifier topology.

Substiute Parts

MAX4173HESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2074MAX4173HESA Datasheet

Current PartRFQ

MAX4173HESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 7748MAX4173HESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4173HESA is determined by strict equivalence across all electrical and mechanical parameters. The critical parameters that define substitutability are:

• Amplifier Type: Current Sense
• Number of Circuits: 1
• -3dB Bandwidth: 1.2 MHz
• Current - Input Bias: 700 µA
• Voltage - Input Offset: 300 µV
• Current - Supply: 420 µA
• Voltage - Supply Span: 3 V to 28 V
• Operating Temperature Range: -40°C to 85°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)

The MAX4173HESA+ is identified as a direct substitute. Both parts share identical electrical specifications and mechanical packaging. The primary distinction between these parts is product status and compliance certification, not functional or dimensional characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MAX4173HESA+ is the direct functional equivalent of the MAX4173HESA. All electrical parameters, mechanical dimensions, and performance characteristics are identical between the two parts.

The MAX4173HESA is classified as obsolete, indicating that Analog Devices Inc./Maxim Integrated no longer manufactures or supports this variant. The MAX4173HESA+ maintains active product status, ensuring ongoing availability and manufacturer support.

The MAX4173HESA is RoHS non-compliant, while the MAX4173HESA+ is ROHS3 compliant. For applications subject to RoHS regulations or requiring compliance with environmental standards, the MAX4173HESA+ is the appropriate selection.

The MAX4173HESA+ is supplied in tube packaging, whereas the original part number does not specify a packaging format. Both parts are surface mount devices in the 8-SOIC package.

For new designs or production requiring current sense amplifier functionality with the specified electrical and mechanical parameters, the MAX4173HESA+ is the recommended selection due to active product status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the MAX4173HESA+ be used as a direct replacement for the MAX4173HESA in existing designs?

A: Yes. The MAX4173HESA+ is electrically and mechanically identical to the MAX4173HESA. All electrical parameters, including bandwidth, input bias current, input offset voltage, supply current, and supply voltage range, are equivalent. The 8-SOIC package dimensions are identical, enabling direct PCB compatibility.

Q: What is the difference between the MAX4173HESA and MAX4173HESA+?

A: The primary differences are product status and compliance certification. The MAX4173HESA is obsolete and RoHS non-compliant. The MAX4173HESA+ is an active product that is ROHS3 compliant. The MAX4173HESA+ is supplied in tube packaging. Functionally and electrically, both parts are equivalent.

Q: Why is the MAX4173HESA classified as obsolete?

A: Analog Devices Inc./Maxim Integrated has discontinued manufacturing of the MAX4173HESA variant. The MAX4173HESA+ represents the current production equivalent and is the recommended part for ongoing applications.

Q: Are there any performance differences between the MAX4173HESA and MAX4173HESA+?

A: No. Both parts operate with identical -3dB bandwidth of 1.2 MHz, input bias current of 700 µA, input offset voltage of 300 µV, supply current of 420 µA, and supply voltage range of 3 V to 28 V. Operating temperature range is -40°C to 85°C for both variants.

Q: What is the significance of RoHS3 compliance for the MAX4173HESA+?

A: ROHS3 compliance indicates that the MAX4173HESA+ meets the Restriction of Hazardous Substances Directive requirements. This certification is required for products sold in the European Union and is increasingly required by global manufacturers and procurement standards. The MAX4173HESA is RoHS non-compliant and may not meet regulatory requirements for certain applications or markets.

Q: Can the MAX4173HESA be used in new production designs?

A: The MAX4173HESA is obsolete and no longer manufactured. For new designs, the MAX4173HESA+ is the appropriate selection, as it maintains active product status, ensures supply chain continuity, and meets current regulatory compliance standards.

Q: Is the 8-SOIC package identical between both parts?

A: Yes. Both the MAX4173HESA and MAX4173HESA+ use the 8-SOIC package with dimensions of 0.154 inches (3.90 mm) width. PCB footprints and land patterns are identical, enabling direct substitution without layout modifications.