原来设计选用四片OPA2277,在加上外围电路,成本也不小,求一款可以同时测试四路PT100转换芯片,精度0.5即可,测温范围1-99度
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你好,
我建议你可以考虑用两颗ADS124S08来实现,内部带PGA和电流源的。可以做断线检测,精度很高,可以满足你的精度要求
如果回答了你的问题,请帮忙点击确认,谢谢!
Best regards
Sulyn Zhang