This paper describes the automatic null-setting method for Op-Amp parameters measurement and the stability of the main measurement loop.

对运放参数测试的自动校零方法、测试主回路的闭环稳定性进行了研究。

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This paper introduces the principles of IN AMP chip AD620, and the feature parameters and main characterial curves, it also presents some typical application circuits.

本文简要概述了单片仪器放大器AD620的结构原理及其性能特点和主要关系曲线，并给出了一些典型应用。

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