美国国家半导体推出具有超低功耗的双通道8位模/数转换器(ADC)。该款ADCV08832模/数转换器采用3.3伏单电源,在2兆赫时钟频率下工作的常规功耗仅为1毫瓦,而在下电“待机”模式下的常规功耗则可降至25微瓦。在进行模/数转换时,如果保持模拟电压输入在正值中变动,其采样保持性能将明显提高。该款双通道模/数转换器能 National Semiconductor Introduces Dual 8-Bit A / D Converter with Ultra-Low Power Consumption. The ADCV08832 analog-to-digital converter operates from a single 3.3-V supply and consumes only 1 milliwatt of normal power at 2 MHz clock frequency and up to 25 μW in power-down standby mode . When performing analog / digital conversion, the sample-and-hold performance will be significantly improved if the analog voltage input is held in a positive value. This dual channel A / D converter can