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The AD8412ABRMZ is a high-voltage, high-bandwidth current detection amplifier. The initial gain of this device is 10V/V, the bandwidth is 1.8MHz, and the maximum gain error is ±0.11% throughout the entire temperature range. The buffered output voltage can be directly connected to any typical converter. The AD8412ABRMZ has a minimum DC common-mode rejection ratio (CMRR) of 110dB within the range of -2V to +50V. The AD8412ABRMZ is used for bidirectional current measurement of shunt resistors in various industrial and automotive applications.

Its main characteristics are:

1.8MHz small signal, -3 dB bandwidth

Fine-tuning kernel within Package (DigiTrim™)

Accuracy without using chopping and/or automatic zero adjustment

The offset drift is ±0.30 μV/°C (typical value)

The maximum voltage offset across the entire temperature range is ±200 μV

Typical value of DC CMRR: 131 decibels

The typical value of AC CMRR at 50kHz: 97 decibels

Wide common-mode input voltage range

From -2 V to +50 V, continuous operation

Continuous survival capability from -20V to +85V

Initial gain: 10 V/V

Wide operating temperature range: -40 °C to +125°C

Bidirectional operation

Power supply operating range: 2.9V to 5.5V

It adopts an 8-pin MSOP package

Application scenarios

The AD8412ABRMZ amplifier is suitable for applications that require high-precision current detection, especially in 48V and 12V DC-DC systems. Its high bandwidth and low gain error make it excel in situations where high stability and accuracy are required ‌.

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