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ADS131M08: ADS131M08内部电荷保持电容Csh的大小

johing blue
Prodigy 40 points
Part Number: ADS131M08

hi！

在ADS131M08的datasheet中未找到关于Csh容量大小，

根据analog engineer's caclutor 需要知道这个电容的大小，设计器驱动电路。

希望能告知该电容大小。

谢谢

  • 0
    TI__Guru**** 295050 points

    您好，ADS131M08是delta sigma ADC，delta sigma ADC没有RC采样保持模块。所以数据手册中没有这个Csh的值。

    在SAR ADC中才会有sample -hold电路。

    在analog engineer's caclutor 中可以看到在delta sigma ADC这里，Csh的单位是V，并不是电容的单位。