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Q. Write notes on clamping ?
When a signal drives an open-ended capacitor the average voltage level on the output terminal of the capacitor is determined by the initial charge on that terminal and may therefore be quite unpredictable. Thus it is necessary to connect the output to ground or some other reference voltage via a large resistor. This action drains any excess charge and results in an average or DC output voltage of zero.
A simple alternative method of establishing a DC reference for the output voltage is by using a diode clamp as shown in figure . By conducting whenever the voltage at the output terminal of the capacitor goes negative, this circuit builds up an average charge on the terminal that is sufficient to prevent the output from ever going negative. Positive charge on this terminal is effectively trapped.
Design a differential amplifier with active current mirror load in Cadence using TSMC 0.35 micron process. The power supply voltage is 3.3V. A 10µA current reference is available
shunt generation explain....
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Q. Show that the block diagram of Figure can be reduced to the form of Figure. Find G eq (s) and H eq (s).
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