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介绍一种直接对微弱信号进行放大与 A/D转换编码的电路原理 ,着重分析循环放大器误差自补偿及 A/D转换编码原理 ,并探讨了该电路的局限性及与 80 31单片机的接口应用。
This paper introduces a kind of direct and weak signal amplification and A / D conversion coding circuit principle, focusing on analysis of loop amplifier error self-compensation and A / D conversion coding principle, and discusses the limitations of the circuit and interface with the 8031 microcontroller .