ADC是将模拟信号转换为数字信号的集成电路或模块，DAC是将数字信号转换为模拟信号的集成电路或模块。近年来，随着计算机和单片机微处理器的飞速发展，ADC和DAC被广泛地应用于通讯、仪器仪表、自动控制等各个领域。Al：）C和DAC具有体积小、品种多、速度快、分辨率高、易于应 An ADC is an integrated circuit or module that converts an analog signal to a digital signal. An DAC is an integrated circuit or module that converts a digital signal to an analog signal. In recent years, with the rapid development of computers and single-chip microprocessor, ADC and DAC are widely used in various fields such as communication, instrumentation and automatic control. Al:) C and DAC with small size, variety, fast speed, high resolution, easy to be