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本文简要地叙述了动态校零运算放大器原理。提出了运算放大器输入输出同相和反相二种结构框图。列出了输入输出关系式。提出了利用浮动电源降低调制器驱动电压幅度提高放大器性能的措施。给出了完整的动态校零放大器线路图和线路技术指标。
This article briefly describes the principle of dynamic zero calibration op amp. Proposed the operational amplifier input and output in-phase and inverted two kinds of block diagram. List the input and output relations. The measures to reduce the modulator driving voltage amplitude by floating power supply and improve the performance of the amplifier are proposed. Given a complete dynamic zero calibration amplifier circuit diagram and line specifications.