Question

Your tasks: 1) Calculate the transconductance, $g_m$, drain resistor, $R_o$, gate-souce voltage, $V_{os}$, resistance, $R$, and transistor width, $W$. Also prove the transistor working in saturation region. [CO1, PO1 (5%)] 2) Design the circuit in LTspice and simulate the dc analysis and ac analysis. Compare your results with pre-calculation and plot the input and output waveform. [CO2, PO2 (10%)] Figure 1 FET common source amplifier. TABLE 1: DESIGN PARAMETER $k_n$ $R_2$ $V_{DD}$ $V_{TN}$ $V_{DS(SAT)}$ $I_D$ $C_{C1}$ Length, $L$ 200 ?A/V$^2$ 100 k? 1.8 V 0.4 V 0.2 V 0.75 mA 0.1 µF 0.18 µm

          Your tasks:
1)
Calculate the transconductance, $g_m$, drain resistor, $R_o$, gate-souce voltage, $V_{os}$, resistance,
$R$, and transistor width, $W$. Also prove the transistor working in saturation region.
[CO1, PO1 (5%)]
2) Design the circuit in LTspice and simulate the dc analysis and ac analysis. Compare your
results with pre-calculation and plot the input and output waveform.
[CO2, PO2 (10%)]
Figure 1 FET common source amplifier.
TABLE 1: DESIGN PARAMETER
$k_n$	$R_2$	$V_{DD}$	$V_{TN}$	$V_{DS(SAT)}$	$I_D$	$C_{C1}$	Length,
$L$
200 ?A/V$^2$	100 k?	1.8 V	0.4 V	0.2 V	0.75 mA	0.1 µF	0.18 µm

Your tasks:
1)
Calculate the transconductance, gm, drain resistor, Ro, gate-souce voltage, Vos, resistance,
R, and transistor width, W. Also prove the transistor working in saturation region.
[CO1, PO1 (5%)]
2) Design the circuit in LTspice and simulate the dc analysis and ac analysis. Compare your
results with pre-calculation and plot the input and output waveform.
[CO2, PO2 (10%)]
Figure 1 FET common source amplifier.
TABLE 1: DESIGN PARAMETER
kn R2 VDD VTN VDS(SAT) ID CC1 Length,
L
200 ?A/V^2 100 k? 1.8 V 0.4 V 0.2 V 0.75 mA 0.1 µF 0.18 µm

Added by Mary L.

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