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分析了程控增益放大器的原理,利用它提高A/D转换分辨力。给出了电原理图、调试方法及程序流程,并说明了它的主要用途
Analyzed the principle of programmable gain amplifier, use it to improve A / D conversion resolution. The electrical schematic, debug method and program flow are given, and its main purpose is illustrated