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and it said:
'Virtually all modern IC chopper amplifiers actually use an auto-zero approach utilizing a two (or more) stage composite amplifier structure similar to the chopper-stabilized scheme. One stage provides nulling action, while the other provides wideband response. Together, the two...
chopper amplifier
Hi,all
I'm designing a chopper amplifier. when i read a papaer by Analog Devices , I'm puzzled. it said:
' Chopper-stabilized amplifiers solved the bandwidth limitations by combining the chopper amplifier (used as a stabilizing amplifier) with a conventional wideband...
help to get a paper
hi,all
can you help me to get the folllowing paper? thanks.
A. Bilotti and G. Monreal, Chopper-stabilized amplifiers with a track-and-hold signal demodulator, IEEE Transactions on Circuits and Systems—I: Fundamental Theory and Applications, Vol. 46, No. 4, pp. 490-495...
Hi, Ladies and gentlemen:
3ks, I have solved my problem with your help.
I find if you want to get ac current on certain node ,you can use probe. you must set ADE like undermentioned method befor simulation.
Outputs-Save all:
line 1 : Select signals to output(save) all...
first, 3ks for your reply.
I still can't get any plot. the attatchment picture is my test circuits with only RC. I had selected 'Save all, line1 all,line 2 all' and 'selected on schematic for a port of a resistor', ADE didn't gave me any plot about current ,but I can get voltage figure...
Hi,
I want to simulate the frequncy figure of current gain of a circuit with spectre.when input a AC current , I think I can plot the AC current VS frequency at a probe or a port of device,but I can't. Pls help me. how to an why? 3ks
Best regards.
I suppose you can use transimpedence amplifier to transform the sum of current to voltage,then amplify it with a factor.
Added after 3 minutes:
Well,if you want to get athe average,you can amplify the voltage with a factor of half.
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