Problem 8.3
1. Schematic
2. HSPICE Netlist
* Problem 8.3
* MOS model
.model NPN npn ( BF=100 BR=1 IS=2E-18 VAF=50 RB=500 RE=30 RC=90
+ CJE=0.015E-12 CJC=0.018E-12 CJS=0.04E-12 MJE=0.3 MJC=0.35 MJS=0.29
+ VJE=0.9 VJC=0.7 VJS=0.64 TF=12E-12 TR=4E-09)
*main circuit
R1 R1_P Vin_P 43k
R2 R2_P VOUT 48k
Q1 VOUT R1_P 0 0 NPN
* voltage source
vdd R2_P 0 5
vin vin_P 0 0 pulse(0 5 0 100p 100p 49.9n 100n)
* analysis
.op
.tran 1n 200n
* options
.options post
.end
3. Simulation Result
Tsat =984psec
Trise =11nsec