利用ADC0809的多通道结构实现自动量程转换

The Automatic Range Conversion Implemented by ADC0809 Multichannel Structure

介绍利用ADC0809,增加少量硬件,只需一次A/D转换,实现多至8级的量程快速自动转换.

By using ADC0809 and a small amount of additionalhardware, up to 8-stage fast speed automatic rangeconversion can be implemented with only once ofA/D converting.