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Original question:
ADS1220: ADS1220
您好，
Output Code = 2^23 • Gain • (VRTD / VREF) = 2^23 • Gain • (IIDAC1 • RRTD) / [(IIDAC1 + IIDAC2) • RREF]
如果 IIDAC1 等于 IIDAC2，则 IDAC 项会消失。
Output Code = 2^23 • Gain • (IIDAC • RRTD) / (2 • IIDAC • RREF) = 2^22 • Gain • (RRTD / RREF)
RRTD = RREF • [Output Code / (Gain • 2^22)]
ADC 将测量值转换为 RTD 等效电阻。由于 RTD 响应的非线性，电阻到温度的转换需要通过公式或查找表进行计算。
更多有关 RTD 电阻到温度转换的信息，请参阅《RTD 测量基本指南》。
