：本应用笔记介绍了如何使用微控制器（μC ）与集成的数字 - 模拟转换器（DAC ）和比较器创建一个低成本ADC是0.05％，线性。Maxim > App Notes > A/D and D/A Conversion/Sampling Circuits Amplifier and Comparator Circuits Keywords: PWM, DAC, ADC, PIC, microcontroller, uc, MCU, low power, analog digital converter, digital analog Jul 09, 1998 converters, a/d d/a converter APPLICATION NOTE 1031 Low-Power 3V ADC is 0.05% Linear Abstract: This application note describes using a microcontroller (C) with integrated digital-to-analog converter (DAC) and comparators to create a low cost ADC that is 0.05% linear. The simple 3V analog-to-digital converter (ADC) shown in Figure 1 is very small, requires no negative supply or expensive precision components, and draws minimal supply current (10A). A single conversion consists of 12,000 comparisons and takes about 300ms. The circuit operates as described below. Fi……