Блог компании Mingjiada Supply ADI Current Sense Amplifiers, Supporting High-Side Precision Current Sensing

Mingjiada Supply ADI Current Sense Amplifiers, Supporting High-Side Precision Current Sensing

As demands for current sensing accuracy and reliability continue to rise in battery management, motor control, server power supplies, industrial automation and portable devices, high-side current sense amplifiers have become essential components in analogue front-end designs. Shenzhen Mingjiada Electronics Co., Ltd. — a long-standing supplier of ADI (formerly Maxim) MAX44286 / MAX44285 / MAX44284 series current sense amplifiers, typically featuring a fixed gain of 50 V/V, suitable for current monitoring applications such as battery management, motor control, power supply overcurrent protection and DC-DC converters. We offer customers a diverse range of options, from single-channel to dual-channel and from low-voltage to high-voltage.

Product Series Highlights
MAX44286: 26V high-side current sense, suitable for low-voltage portable systems
The MAX44286 is positioned as a high-side current sense amplifier with a 26V common-mode voltage range. It also features a fixed gain of 50V/V, low offset and low power consumption, and is housed in a compact package. It is particularly well-suited to applications such as low-voltage battery-powered systems, portable devices, point-of-load power supplies, USB power management and low-voltage DC-DC converters.
Compared to the 76V version of the MAX44284, the MAX44286 offers a more cost-effective option for low-voltage systems whilst maintaining high-precision current sensing capability.

MAX44285: Dual-Channel 76V High-Side Current Sensing for More Efficient Multi-Channel Monitoring
The MAX44285 can be regarded as the dual-channel version of the MAX44284; it similarly supports a 76V high common-mode voltage and a fixed gain of 50V/V, whilst offering low offset and low power consumption. Its dual-channel architecture enables simultaneous monitoring of two current paths, making it suitable for multi-phase motor control, dual-channel power management, server power distribution, and multi-channel systems requiring independent current sensing.
For multi-channel current sensing designs requiring a compact layout, the MAX44285 effectively reduces the number of components, simplifies the signal chain, improves channel-to-channel matching, and lowers the overall BOM cost.

MAX44284: 76V High-Side Current Sensing, Low Offset and Low Power Consumption
The MAX44284 is a high-precision, low-power high-side current sensing amplifier that supports an input common-mode voltage range of up to 76V, with a fixed gain typically of 50V/V. Its low input offset voltage and low quiescent current make it ideal for battery-powered devices, power management systems, and applications requiring long-term stable current monitoring. Small packages such as the SC70-6 help to save board space and are suitable for high-density designs.
In high-side current sensing, the MAX44284 is capable of extracting minute differential voltages without interrupting the load’s ground path, providing the system with reliable current feedback and a basis for overcurrent protection.

Mingjiada Electronics supplies the [ADI] MAX44286 / MAX44285 / MAX44284 series of current sense amplifiers
1. MAX44286——Low-power, high-precision, 4-ball WLP package, current sense amplifier
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2. MAX44285——Dual-channel, high-precision, high-voltage current sense amplifier
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3. MAX44284——36 V, input common-mode, high-precision, low-power current sense amplifier
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For further product information or to request samples of the [ADI] MAX44284 / MAX44285 / MAX44286 current sense amplifiers, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.