MAX4372FESA Current Sense Amplifier Equivalent & Substitute Parts

Part Overview

The MAX4372FESA is a current sense amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This linear amplifier device is designed for single-circuit current sensing applications and is packaged in an 8-SOIC surface mount configuration. The MAX4372FESA operates across a wide supply voltage range of 2.7 V to 28 V, making it suitable for diverse power supply environments.

The MAX4372FESA 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 currently utilizing this component.

Substiute Parts

MAX4372FESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2119MAX4372FESA Datasheet

Current PartRFQ

MAX4372FESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1290MAX4372FESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4372FESA is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Amplifier type classification (Current Sense)
• Number of circuits (1)
• Bandwidth performance (-3dB Bandwidth: 200 kHz)
• Input bias current (2 µA)
• Input offset voltage (300 µV)
• Supply current consumption (30 µA)
• Supply voltage operating range (2.7 V to 28 V minimum and maximum)
• Temperature operating range (-40°C to 85°C)

Mechanical & Physical Specifications:

• Mounting technology (Surface Mount)
• Package type (8-SOIC with 0.154" / 3.90mm width)

Parts meeting all these criteria are classified as direct substitutes. Variations in packaging format (such as tube versus alternative packaging) do not affect functional substitution eligibility when the core device package remains 8-SOIC.

Parameter Comparison

Engineering Selection Recommendations

The MAX4372FESA+ serves as a direct functional substitute for the MAX4372FESA. Both parts share identical electrical and mechanical specifications across all critical parameters that determine circuit performance and physical compatibility.

Product Status Consideration: The MAX4372FESA is classified as obsolete, while the MAX4372FESA+ maintains active product status. This distinction is significant for long-term supply chain planning and component availability.

Compliance Consideration: The MAX4372FESA is RoHS non-compliant. The MAX4372FESA+ is ROHS3 compliant. For applications subject to RoHS regulatory requirements or customer specifications mandating RoHS compliance, the MAX4372FESA+ is the appropriate selection. For legacy systems or applications without RoHS requirements, either part meets functional specifications.

Both parts carry identical REACH and ECCN classifications (REACH Unaffected, EAR99), indicating equivalent regulatory treatment in these categories.

Packaging Format: The MAX4372FESA+ is supplied in tube packaging, while the main part number does not specify packaging format. This difference affects handling, storage, and component management procedures but does not impact electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the MAX4372FESA+ replace the MAX4372FESA in existing designs?

A: Yes. The MAX4372FESA+ is a direct substitute. All electrical parameters, operating ranges, and physical package specifications are identical. The component will function identically in the same circuit configuration and PCB layout.

Q: What is the difference between MAX4372FESA and MAX4372FESA+?

A: The primary differences are product status and RoHS compliance. The MAX4372FESA is obsolete and RoHS non-compliant. The MAX4372FESA+ is an active product and ROHS3 compliant. Electrically and mechanically, both parts are equivalent.

Q: Why should I consider switching to MAX4372FESA+ if my design currently uses MAX4372FESA?

A: The MAX4372FESA is obsolete, which creates long-term supply risk. The MAX4372FESA+ is actively manufactured and available. Additionally, if your application or customer requirements mandate RoHS compliance, the MAX4372FESA+ satisfies this requirement while the original part does not.

Q: Are there any pin configuration differences between these parts?

A: No. Both parts use the 8-SOIC package with identical pin assignments and electrical characteristics. PCB layouts and schematics require no modification.

Q: What is the operating temperature range for both parts?

A: Both the MAX4372FESA and MAX4372FESA+ operate across -40°C to 85°C. Temperature performance is identical.

Q: What supply voltage range do these parts support?

A: Both parts operate with supply voltages from 2.7 V minimum to 28 V maximum. This wide range supports applications from low-voltage battery-powered systems to industrial power supplies.

Q: Does packaging format (tube) affect component performance?

A: No. Tube packaging is a handling and storage format only. It does not affect electrical performance, reliability, or circuit operation. Tube packaging is standard for surface mount components and is compatible with automated assembly equipment.

Q: Are both parts suitable for current sensing applications?

A: Yes. Both the MAX4372FESA and MAX4372FESA+ are current sense amplifiers with a single circuit configuration. They are designed specifically for current sensing applications with 200 kHz bandwidth and low input offset voltage (300 µV).