我需要测8路单端电压信号,所以采用了ADS1256,,24位A/D芯片。24V的供电电压,需要转成5V和3.3V的电压,那么需要什么型号电源芯片才可以满ADS1256有效位数的至少达到20位呢?
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这样肯定可以.
For voltage references not suited for driving the ADS1255/6
directly (for example, high output impedance references or
resistive voltage dividers), use the recommended buffer
circuit shown in Figure 26.
对于前端模拟信号调理,建议采用OPA2333或者LMP2022,低噪声,零漂移,性能非常好。
多谢您的推荐,可否给个单端模拟信号调理的电路,我想参考下。谢谢,448791853@qq.com