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ISO6762:Isolated ADC's SPI tested for communication with errors at ESD-HCP-8kV

Part Number: ISO6762

您好,我正在使用ISO6762来隔离ADC器件的SPI通信总线,在测试HCP的ESD时,发现它对通信有影响,会错误地输出ADC的DRDY信号,SPI接收到的ADC转换值会不正确, 这并不排除提前触发 DRDY 以读取错误的数据。当我去掉隔离并用电线连接隔离信号的GND时,测试可以通过;当我放回隔离器并保持隔离 GND 短路时,测试会出错;当我移除隔离GND时,测试错误会变得非常频繁,我尝试从其他厂商更换隔离器IS3762,并且可以通过相同的PCBA,因此我怀疑ISO6762可能有问题。希望得到您的回复和支持,谢谢!