在ADS1204中2V对应的16位数字量是多少呢？-2V对应的又是多少？
在芯片手册上只看到以下这段话：A differential input signal of 0V will ideally produce a stream of ones and zeros that are high 50% of the time and low 50% of the time. A differential input of +2V produces a stream of ones and zeros that are high 80% of the time. A differential input of –2V produces a stream of ones and zeros that are high 20% of the time.
