1.ADS1115模数转换用作单端信号转换时,vin-端连接数字地还是模拟地?
2.不需使用的输入端口,怎么样处理最佳?
3.准备把信号处理一部分做成一个板子,MCU为另一块板子,通过ADS1115转换成数字信号给MCU。
用REF5040基准电压源给ADS1115供电,I2C的上拉电压VDD用该基准电压源还是MCU部分的VDD?
ADS1115的接地问题如何处理更佳。
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