Shot noise test with B source, diode
voltage on device (diode , forward)
Vdev out 0 DC 0 PULSE(0.4 0.45 10u)
diode , forward direction , to be modeled D1 mess 0 DMOD
with noise
.model DMOD D IS=1e-14 N=1
X1 0 mess out ishot
device between 1 and 2
new output terminals of device including noise: 1 and 3 .subckt ishot 1 2 3
white noise source with rms 1V * 20000 sample points
VNG 0 11 DC 0 TRNOISE(1 1n 0 0) *measure the current i(v1)
V1 2 3 DC 0
calculate the shot noise
sqrt(2*current*q*bandwidth)
BI 1 3 I=sqrt(2*abs(i(v1))*1.6e-19*1e7)*v(11) .ends ishot
.tran 1n 20u .control
run
plot (-1)*i(vdev) .endc
.end