Other Parts Discussed in Thread: OPA2335, TLA2022, ADS1114
MEMS Resistance 大概在1.74kohm ,形变时电阻变化最大+-60ohm,, 要求检测MEMS Resistance电阻值, 检测精度要求0.01ohm,有推荐的电路吗?用OPA2335是否可以实现,
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如果对体积有要求,您可以考虑仪表放大器。
您可以参考先放文档中推荐的型号。
https://www.ti.com/lit/po/sbat003a/sbat003a.pdf?ts=1715121174447
您好,关于ADC,12位是adc的分辨率,如果您关注精度,应该关注INL,DNL, gain err. 整体精度误差TUE为三个值的平方和再开根号。如果后续有标定的话,可以忽略DNL和gain error。