Analog Circuits
1
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
The ac schematic of an NMOS common-source stage is shown in the figure below, where part of
the biasing circuits has been omitted for simplicity. For the n -channel MOSFET M, the
transconductance gm = 1 mA/V, and body effect and channel length modulation effect are to be
neglected. The lower cutoff frequency in Hz of the circuit is approximately at
2
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
An n-channel depletion MOSFET has following two points on its ID - VGS curve:
(i)VGS = 0 at Id = 12 mA and
(ii)VGS = -6 Volts at Zo =$$\infty $$
Which of the following Q-points will give the highest transconductance gain for small signals?
3
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
Given
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
Transconductance in milli-Siemens (mS) and voltage gain of the amplifier are respectively.
4
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
Given
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
ID and VDS under DC conditions are respectively
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics