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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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OP AMP DC Voltage Analysis (ideal Op Amp Assumption)

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FIGURE 1 shows two amplifier circuits, each of which has one or two unknown voltages (shown highlighted). Select, from TABLE A, the most appropriate value for the unknown voltages for each circuit. Assume that the op-amps are ideal and that the magnitude of their output voltages is less than their maximum peak output voltage swing (VOM). Show all working!

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