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MAXIM INTEGRATED / ANALOG DEVICES MAX4377FASA High-Side Current Sense Amplifier

The MAX4377FASA+ is a dual high-side current sense amplifier in an 8-pin NSOIC package, featuring an internal gain of 50V/V with buffered voltage output. It provides high accuracy and minimal interference, ideal for battery-powered systems, fuel gauges, and power management. Its input common-mode voltage range of 0 to 28V is independent of supply voltage, enabling reliable current monitoring during deep discharge. Operating from 3V to 28V supply, it consumes about 1mA per amplifier, with a bandwidth of 1.7MHz and a slew rate of 10V/µs, supporting external sense resistor adjustment for precise full-scale measurement.

Authorized Distributors
Source:Newark
Part No:MAX4377FASA+
Stock:2153
Inv Date:06-05-2026
Price: Unit price: $4.79
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Source:DigiKey
Part No:MAX4377FASA+
Stock:230
Inv Date:06-05-2026
Price: Unit price: $4.79
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Part No:MAX4377FASA+
Stock:164
Inv Date:06-06-2026
Price: Unit price: $4.79
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Part No:MAX4377FASA
Stock:0
Inv Date:06-06-2026
Price: N/A
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MAXIM INTEGRATED / ANALOG DEVICES MAX4377FASA High-Side Current Sense Amplifier Specifications:

  • Package: 8-pin NSOIC
  • Gain: 50V/V
  • Input Common-Mode Range: 0 to 28V
  • Supply Voltage Range: 3V to 28V
  • Supply Current: ~1mA per amplifier
  • Bandwidth: 1.7MHz
  • Slew Rate: 10V/µs
  • Input Bias Current: 120µA at VRS+ ≤ 2V
  • CMRR: 90dB
  • PSRR: 90dB
  • High common-mode voltage handling: 2V to 28V
  • Operating Temperature Range: -40°C to +125°C
  • Appropriate for battery systems, fuel gauges, system monitoring, power control
  • High accuracy with typical full-scale error of ±0.5%

Buy the Maxim Series MAX4377FASA: High-Side Current Sense Amplifier

Purchase the Maxim high-side current sense amplifier MAX4377FASA today for accurate, reliable current monitoring in battery-powered devices, fuel gauges, and power management systems. This dual amplifier in an 8-pin NSOIC package features an internal gain of 50V/V, operates over a wide voltage range from 3V to 28V, and offers high accuracy with minimal interference. Its high bandwidth of 1.7MHz, quick slew rate, and excellent common-mode rejection make it the ideal choice for system-level current measurement, ensuring long-lasting performance and integration ease.

Get Maxim MAX4377FASA today—built for precision and long-lasting durability in battery monitoring and power systems.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES MAX4377FASA?

You can click on the BUY or RFQ button to purchase MAX4377FASA from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part MAX4377FASA?

You can download the MAX4377FASA datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of MAX4377FASA?

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