ADUM5402隔离器的数字隔离器规格书PDF中文资料

ADUM5402属于隔离器的数字隔离器。由亚德诺半导体技术有限公司制造生产的ADUM5402数字隔离器数字隔离器用于在电气上隔离电路，但仍允许电路之间传输数字信号。技术类型包括容性耦合式、巨磁阻 (GMR) 式或磁耦合式。??通道数范围为 1 至 10 个，通道类型可以是双向、单向或二者组合。

Low Cost, Level Shifted Low Side Current Monitor for Negative High Voltage Rails

The measurement result from the AD7171 is provided as a digital code utilizing a simple 2-wire, SPI-compatible serial interface. The entire circuit operates on a single +3.3 V supply. Optional galvanic isolation is provided by the ADuM5402 quad channel isolator. In addition to isolating the output data, the ADuM5402 digital isolator can also supply isolated +3.3 V for the circuit. The ADuM5402 is not required for normal circuit operation unless galvanic isolation is needed.

This combination of parts provides a accurate high voltage negative rail current sense solution with a small component count, low cost, and low power. The accuracy of the measurement is primarily determined by resistor tolerances and the accuracy of the band gap reference, and is typically better than 1.