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    Op Amps

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    FIGURE 2(a) shows the Bode plot of op-amp THS4021. The
    manufacturer describes this device as a ââ?¬Ë?decompensated op-ampââ?¬â?¢, by
    which is meant that the frequency compensation is partial as opposed to
    ââ?¬Ë?uncompensatedââ?¬â?¢ where no compensation is used at all. The advantages
    of ââ?¬Ë?decompensationââ?¬â?¢ over ââ?¬Ë?full compensationââ?¬â?¢ include a higher open-loop
    gain and better slew rate. Greater care, however, is needed in the use of
    such an op-amp as frequency stability cannot be assured.

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