实时数据采集和实时控制系统往往要求高速高分辨率的模/数(A/D)转换器,但目前只有少数双极型12位A/D转换器的转换时间达到10μs。虽然,CMOS型A/D转换器能提供更快的转换时间,但大多数是8位的。近年来,美国市场上出售一种快速的CMOS型12位A/D转换器AD7572,其模拟输入电压为0～5V,转换时间为5μs,功耗为12UMW。它 Real-time data acquisition and real-time control systems often require high-speed, high-resolution A / D converters, but currently only a few bipolar 12-bit A / D converters have a conversion time of 10μs. Although CMOS type A / D converters provide faster conversion times, most are 8-bit. In recent years, the AD7572, a fast, CMOS 12-bit A / D converter sold in the United States, has an analog input voltage of 0-5V, a 5μs conversion time, and a power dissipation of 12UMW. it