TI团队您好:
我使用INA226对[霍兰德压控电流源]输出的电流进行检测,其输出电流在-4mA~4mA之间,电压30V以内。



以上是原理图,做了隔离,所以INA226与压控电流源分别是两个地。但是查看芯片手册中要求INA226与被测回路共地处理?我该如何修改,才能正确测得压控电流源输出的电压电流?
感谢您的解答!
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是的,INA226和测试电路应具有相同的接地,但是,您可以使用数字隔离器来缓解这一问题,详见以下TI参考设计:
https://www.ti.com/lit/ug/tidu361a/tidu361a.pdf
https://www.ti.com/tool/TIDA-01608