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How to measure current between draina nd source in eldo (Read 4310 times)
rajivs1001
New Member
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Posts: 7
Belgium
How to measure current between draina nd source in eldo
Jun 09
th
, 2009, 2:59pm
Is there any way I could measure the current flowing between source and drain terminal of a transisotr without modifing the netlist ?
Thanks,
-Rajiv
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oermens
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Posts: 86
Re: How to measure current between draina nd source in eldo
Reply #1 -
Jun 9
th
, 2009, 3:19pm
Which simulator are you using? If Spectre in ADE, go Outputs>save all...> and theres an option for terminal currents (userprobe)
my mistake, i guess i didnt read the whole thread title
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Last Edit: Jun 10
th
, 2009, 4:28am by oermens
»
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rajivs1001
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Posts: 7
Belgium
Re: How to measure current between draina nd source in eldo
Reply #2 -
Jun 9
th
, 2009, 3:29pm
I was asking about ELDO simulator.
Thanks,
-Rajiv
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AnalogDE
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Posts: 137
Re: How to measure current between draina nd source in eldo
Reply #3 -
Jun 9
th
, 2009, 4:59pm
Add the following line to your spice deck:
.PROBE I(Mxx.D) or
.PROBE I(Mxx.S)
where Mxx is the instance name of the MOS you are interested in.
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rajivs1001
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Posts: 7
Belgium
Re: How to measure current between draina nd source in eldo
Reply #4 -
Jun 11
th
, 2009, 9:21am
I was under the impression that I(Mxx.D) measures current between Drain and bulk but I verified that my assumption was not correct.
Thanks for the reply.
Regards,
-Rajiv
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Geoffrey_Coram
Senior Fellow
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Posts: 1999
Massachusetts, USA
Re: How to measure current between draina nd source in eldo
Reply #5 -
Jun 12
th
, 2009, 10:26am
Note that I(Mxx.D) includes drain to bulk current, but usually that's smaller than the channel current.
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If at first you do succeed, STOP, raise your standards, and stop wasting your time.
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