High input impedance three op amp differential amplifier circuit diagram

Published:2011/6/27 4:59:00 Author:Rebekka | Keyword: High input impedance, three op amp differential amplifier | From:SeekIC

The circuit is mainly used for the monitor the signal pre-amplification or amplification of various data, which is sometimes referred to be used as data amplifier circuit. Figure shows a four-op-amp OP-09A integrated chip. In order to increase input impedance. It still uses the same phase of adding signal voltage input method. In order to ensure the two sources are added to the op amp's inverting input. It uses the two-phase amplifier A1 and A2 to form the first stage amplifier. Table 1 shows the OP-09A quad op amp integrated amplifier electrical characteristics table.



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