Блог компании MIngjiada Supply ADI AD8417 | AD8418 Series Bidirectional Zero Drift Current Sense Amplifiers

In motor control, industrial automation, automotive electronics, battery management and power supply systems, high-precision current sensing is a critical component for achieving closed-loop control, overcurrent protection and energy efficiency optimisation. Shenzhen Mingjiada Electronics Co., Ltd. — a long-standing supplier of ADI (Analog Devices) AD8417 / AD8418 bidirectional, zero-drift current sense amplifiers — provides high-performance, highly reliable solutions for high-side current sensing.

AD8417 – Bidirectional, Zero-Drift Current Sense Amplifier

Overview:

The AD8417 is a high-voltage, high-resolution shunt amplifier. With an initial gain set to 60 V/V, the maximum gain error across the entire temperature range is ±0.3 per cent. The buffered output voltage can be directly connected to any typical converter. The AD8417 offers excellent input common-mode rejection performance when the input common-mode voltage is within the range of −2 V to +70 V; it is capable of measuring bidirectional current across a shunt resistor and is suitable for a wide range of automotive and industrial applications, including motor control, power management and solenoid valve control.

Models supplied by Mingjiada Electronics:

AD8417BRMZ

AD8417WBRMZ

AD8417WBRMZ-10

AD8417WBRZ

AD8417WHRMZ

AD8417WHRZ

AD8418 – Bidirectional, Zero-Drift Current Sense Amplifier

Overview:

The AD8418 is a high-voltage, high-resolution shunt amplifier. With an initial gain set to 20 V/V, the maximum gain error across the entire temperature range is ±0.15 per cent. The buffered output voltage can be connected directly to any typical converter. The AD8418 offers excellent input common-mode rejection performance when the input common-mode voltage is within the range of −2 V to +70 V; it is capable of measuring bidirectional current across a shunt resistor and is suitable for a wide range of automotive and industrial applications, including motor control, battery management and solenoid valve control.

Models supplied by Mingjiada Electronics:

AD8418ABRMZ

AD8418AWBRMZ

AD8418AWBRMZ-10

AD8418AWBRZ

AD8418AWHRMZ

AD8418AWHRZ

AD8417 | AD8418 Product Features:

Bidirectional current sensing: Measures both forward and reverse currents; the output is referenced via the REF pin, facilitating interfacing with an ADC.

Zero-drift architecture: Low offset and low drift, suitable for high-precision, wide-temperature applications.

High common-mode voltage: –2 V to +70 V, supporting high-side current sensing.

Fixed gain of 60 V/V and 20 V/V: No external gain resistors required, simplifying design and improving temperature drift matching.

Enhanced PWM Suppression: The AD8417 offers superior suppression capability under PWM common-mode transients, making it suitable for motor drives.

Compact Package: 8-pin MSOP, saving PCB space.

Wide Operating Temperature Range: –40°C to +125°C.

Typical Applications:

High-side current sensing:

Motor control

Solenoid valve control

Power management

Low-side current sensing

Diagnostic protection

In addition, Mingjiada Electronics supplies a wide range of electronic components, including integrated circuits (ICs), 5G chips, new energy ICs, IoT chips, Bluetooth chips and automotive chips, offering customers a one-stop procurement experience. Mingjiada Electronics maintains ample stock, with 2 million electronic component part numbers in stock, ensuring customers can quickly obtain the products they require. The company supports both small-batch sample purchases and high-volume orders to meet the needs of customers of all sizes.

For further information on the [ADI] AD8417 | AD8418 bidirectional, zero-drift current sense amplifiers, or to enquire about sample prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.