1
GATE EE 2001
MCQ (Single Correct Answer)
+2
-0.6
A sample-and-hold $$(S/H)$$ circuit, having a holding capacitor of $$0.1$$ $$nF,$$ is used at the input of an $$ADC$$ (analog-to-digital converter). The conversion time of the $$ADC$$ is $$1\,\,\mu \sec ,$$ and during this time, the capacitor should not lose more than $$0.5\% $$ of the charge put across it during the sampling time. The maximum value of the input signal to the $$S/H$$ circuit is $$5V.$$ The leakage current of the $$S/H$$ circuit should be less than
A
$$2.5$$ $$mA$$
B
$$0.25$$ $$mA$$
C
$$25.0$$ $$\mu A$$
D
$$2.5$$ $$\mu A$$
2
GATE EE 1992
MCQ (Single Correct Answer)
+2
-0.6
In an $$RC$$- coupled common Emitter amplifier which of the following is true?
A
Coupling Capacitance affects the high frequency $$\left( {hF} \right)$$ response and bypass capacitance affects Low frequency $$\left( {lF} \right)$$ response.
B
Both coupling and by pass capacitances affects the $$lF$$ response.
C
Both coupling and by pass capacitances affects the $$hF$$ response.
D
Coupling Capacitance affects the $$lf$$ response and the bypass capacitance affects the $$hF$$ response.
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