AD574

1

The weak signal has been amplified by using operational amplifier ICL7650 , second-order reverse-phase low pass filter , analog-digital converter AD574 .

通过采用斩波运算放大器ICL7650、二阶反相型低通有源滤波器、逐次逼近型AD转换器AD574实现了微弱信号的高精度放大。
2

In the not too high speed of converting circumstances , it can make up A / D converted circuit and replace AD574 or ADC0809 and so on , furthermore reduce hardware cost greatly .

在要求转换速度不太高的情况下，外围接简单电路可以代替由AD574或ADC0809等芯片组成的A/D转换电路，硬件价格大大降低。