34 lines
577 B
Plaintext
34 lines
577 B
Plaintext
simple differential pair - CM and DM dc sensitivity
|
|
|
|
* Models:
|
|
.model qnl npn(level=1 bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)
|
|
.model qnr npn(level=1 bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)
|
|
|
|
* Circuit description:
|
|
q1 4 2 6 qnr
|
|
q2 5 3 6 qnl
|
|
rs1 11 2 1k
|
|
rs2 3 1 1k
|
|
rc1 4 8 10k
|
|
rc2 5 8 10k
|
|
q3 7 7 9 qnl
|
|
q4 6 7 9 qnr
|
|
rbias 7 8 20k
|
|
|
|
* Inputs/Supplies:
|
|
vcm 1 0 dc 0 sin(0 0.1 5meg) ac 1
|
|
vdm 1 11 dc 0 sin(0 0.1 5meg) ac 1
|
|
vcc 8 0 12
|
|
vee 9 0 -12
|
|
|
|
.options noacct nopage
|
|
|
|
* Analyses:
|
|
.tf v(5) vcm
|
|
.tf v(5) vdm
|
|
.sens v(5,4)
|
|
|
|
.print SENS all
|
|
|
|
.end
|