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本文介绍了用于PCM~(30)/32端机编码器的双通道运算放大器电路和特性分析,其电压增益约为100db,单位增益带宽约为100MHZ。零点漂移约为1my;所得实验结果,同理论一致。
This paper introduces the circuit and characteristic analysis of dual op amp used in PCM ~ (30) / 32 encoder. Its voltage gain is about 100db and the bandwidth of unity gain is about 100MHZ. Zero drift is about 1my; the experimental results obtained, the same theory.