1
GATE ECE 1995
Subjective
+5
-0
In the JFET circuit shown in Fig assume that R1||R2 = 1 M$$\Omega $$ and the total stray capacitance at the output to be 20 pF. The JFET used has gm = 2mA/V, Cgs = 20 pF and Cgd = 2 pF. Determine the upper cut-off frequency of the amplifier. GATE ECE 1995 Analog Circuits - FET and MOSFET Question 11 English
2
GATE ECE 1994
Subjective
+5
-0
In the MOSFET amplifier shown in the fig. below, the transistor has $$\mu \,\, = \,\,50,\,\,{r_d}\,\, = \,\,10\,K\Omega ,\,\,{C_{gs}}\,\, = \,\,5\,\,pF,{C_{gd}}\,\, = \,\,1pF\,\,$$ and $${C_{ds}}\,\, = \,\,2\,pF.$$ Draw a small signal equivalent circuit for the amplifier for midband frequencies and calculate its midband voltage gain. GATE ECE 1994 Analog Circuits - FET and MOSFET Question 12 English
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