ECE342 HW8 Solution

1.

.LIB 'models15 . txt' MOS

M1 OUT IN VDD VDD pmos L=1.5u W=10u

M2 OUT IN 0 0 nmos L=1.5u W=5u

CL OUT 0 1p

VVDD VDD 0 5

VIN IN 0 0 PULSE 0 5 2n 1n 1n 5n 20n

.DC VIN 0 5 0.01

.PRINT DC V( IN) V(OUT)

.TRAN 100p 15n

.PRINT TRAN V( IN) V(OUT)

.OPTIONS LIST NODE POST

.END

2.

(a) The Hspice script is as follows.

*OP and AC analysis

.lib 'models15.txt' MOS

VVDD VDD 0 DC 2.5

VVSS VSS 0 DC -2.5

RD VDD VD 3k

RSIG VSIG VX 500k

RG VG 0 1MEG

RL VO 0 200k

CC1 VX VG 10u

CC2 VD VO 10u

CS VS 0 1u

IBIAS VS VSS 1m

M1 VD VG VS VS nmos W=15u L=1.5u

VVSIG VSIG 0 AC 1

.AC DEC 5 100 100MEG

.OPTIONS LIST NODE POST

.PRINT AC VDB(VO)

.END