(h) A MOSFET in saturation is characterised by the following expression for the drain-source current where VGS is the gate-source voltage, K is a scalar constant and Vr is the MOSFET threshold voltage: K ins = -(Vas -V, )² Which of the following expressions corresponds to the MOSFET's small signal transconductance, gm = ids /vds in terms of the MOSFET's large signal (DC) gate-source voltage, VGs? (A) gm=0.5 K (VGs -Vr) (B) gm= 0.5 K (VGs+Vr) (C) gm= K (VGs -Vr) (D) gm= K (VGs -Vr)

Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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(h) A MOSFET in saturation is characterised by the following expression for the drain-source
current where VGS is the gate-source voltage, K is a scalar constant and Vr is the MOSFET
threshold voltage:
K
ips =(Ves
(Vas –V7)²
2
Which of the following expressions corresponds to the MOSFET's small signal
transconductance, gm = ids /Vds in terms of the MOSFET's large signal (DC) gate-source voltage,
VGs?
(A) gm=0.5 K (VGs -Vr)
(B) gm= 0.5 K (VGs+Vr)
(C) gm= K (VGs -Vr)
(D) gm= K (VGs -Vr)
Transcribed Image Text:(h) A MOSFET in saturation is characterised by the following expression for the drain-source current where VGS is the gate-source voltage, K is a scalar constant and Vr is the MOSFET threshold voltage: K ips =(Ves (Vas –V7)² 2 Which of the following expressions corresponds to the MOSFET's small signal transconductance, gm = ids /Vds in terms of the MOSFET's large signal (DC) gate-source voltage, VGs? (A) gm=0.5 K (VGs -Vr) (B) gm= 0.5 K (VGs+Vr) (C) gm= K (VGs -Vr) (D) gm= K (VGs -Vr)
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