ffsher100
Junior Member level 3

hi all,
i am new to bipolar world.
I study PTAT circuit which include BJT and reference link https://www.edaboard.com/threads/74618/
q1):how to get BJT parameter: thermal voltage(Vt), Vbe...etc. from library model under Hspice, so that equation "R1 = Vt/I *ln(N)" can be calculated?
q2):for MOS parameter: vgs, ids, vth has function call, does BJT have similar function? i can not find at hspice manual.
q3):how to simulate temperature coefficient of a Bipolar ?
thank all
i am new to bipolar world.
I study PTAT circuit which include BJT and reference link https://www.edaboard.com/threads/74618/
q1):how to get BJT parameter: thermal voltage(Vt), Vbe...etc. from library model under Hspice, so that equation "R1 = Vt/I *ln(N)" can be calculated?
q2):for MOS parameter: vgs, ids, vth has function call, does BJT have similar function? i can not find at hspice manual.
q3):how to simulate temperature coefficient of a Bipolar ?
thank all
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