amanda_au86
Newbie level 3
Hi guys,
I'm designing a thermo diode and want to measure Vbe value to get the non-ideality factor.
I have two ways to get Vbe in .meas statement.
First method is:
.meas tran VB find V(B) at 40n
.meas tran VE find V(E) at 40n
.meas VBE param = 'VB-VE'
Second method is
.meas tran VBE vbe(xtd1.xqq0.qin)
Both methods produce different values. Let say first method I get 0.6637V and second method I get 0.6552V. Which value is more accurate? And why they have different values?
Please advise.
Thanks.
I'm designing a thermo diode and want to measure Vbe value to get the non-ideality factor.
I have two ways to get Vbe in .meas statement.
First method is:
.meas tran VB find V(B) at 40n
.meas tran VE find V(E) at 40n
.meas VBE param = 'VB-VE'
Second method is
.meas tran VBE vbe(xtd1.xqq0.qin)
Both methods produce different values. Let say first method I get 0.6637V and second method I get 0.6552V. Which value is more accurate? And why they have different values?
Please advise.
Thanks.