MAX4378HASD Equivalent & Substitute Parts

Part Overview

The MAX4378HASD is a current sense amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This device contains four independent current sensing circuits in a 14-SOIC surface mount package. The MAX4378HASD is classified as an obsolete product, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. Current sense amplifiers are critical components in power management, battery monitoring, and load detection applications where precise current measurement is required across supply voltage ranges of 3V to 28V.

Substiute Parts

MAX4378HASD

Analog Devices Inc./Maxim IntegratedIn Stock: 1033MAX4378HASD Datasheet

Current PartRFQ

MAX4378HASD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1000MAX4378HASD+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4378HASD is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier type: Current Sense
• Number of circuits: 4 independent channels
• Slew rate: 10V/µs
• -3dB bandwidth: 2 MHz
• Input bias current: 120 µA
• Supply current: 1mA per channel
• Supply voltage range: 3V to 28V minimum and maximum
• Operating temperature range: -40°C to 125°C

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount
• Package type: 14-SOIC with 0.154" (3.90mm) width

All substitute parts must match these parameters exactly. Packaging format (tube versus alternative) does not affect electrical or mechanical compatibility and therefore does not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

The MAX4378HASD+ is a direct electrical and mechanical substitute for the MAX4378HASD. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications across all critical parameters: amplifier type, circuit count, slew rate, bandwidth, bias current, supply current, supply voltage range, operating temperature, and package configuration.

The primary distinction between these parts is product lifecycle status and regulatory compliance:

MAX4378HASD (Obsolete): This part is classified as obsolete and is no longer in active production. RoHS compliance status is non-compliant. Continued use is limited to existing inventory or legacy system maintenance.

MAX4378HASD+ (Active): This part is in active production status and is ROHS3 compliant, meeting current environmental and regulatory requirements. This part is suitable for new designs and ongoing production applications.

For new designs, production ramp, or long-term supply chain planning, the MAX4378HASD+ is the appropriate selection. For legacy system repairs or applications with specific obsolete part requirements, the MAX4378HASD remains electrically and mechanically compatible.

Frequently Asked Questions (FAQ)

Q: Can MAX4378HASD+ be used as a direct replacement for MAX4378HASD in existing designs?

A: Yes. The MAX4378HASD+ is electrically and mechanically identical to the MAX4378HASD. All electrical parameters, including slew rate, bandwidth, bias current, supply current, and operating temperature range, are identical. The 14-SOIC package dimensions and pinout are identical. The parts are pin-for-pin compatible.

Q: What is the difference between MAX4378HASD and MAX4378HASD+?

A: The primary differences are product status and regulatory compliance. The MAX4378HASD is obsolete and RoHS non-compliant. The MAX4378HASD+ is active production and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Does packaging format affect substitution compatibility?

A: No. The main part and substitute part differ in packaging format (standard versus tube), but this is a logistics and handling consideration only. Electrical and mechanical compatibility is unaffected by packaging format.

Q: What supply voltage range does this current sense amplifier support?

A: Both the MAX4378HASD and MAX4378HASD+ operate across a supply voltage range of 3V minimum to 28V maximum, making them suitable for applications ranging from low-voltage battery monitoring to industrial power systems.

Q: How many independent current sensing channels are integrated in this device?

A: Both parts contain four independent current sensing circuits in a single 14-SOIC package, allowing simultaneous current measurement across four separate signal paths.

Q: Is the MAX4378HASD+ suitable for new product designs?

A: Yes. The MAX4378HASD+ is in active production status and meets current RoHS3 compliance requirements, making it the appropriate choice for new designs and production applications.