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Re: fully differential opamp implementation

Hi All

>I need a fully differential opamp for my circuit design. >Unfortunately, the simulator I use, multisim, does not have a build in >fully differential opamp. > >So, I was wondering if any of you have experience implementing a fully >differential opamp, can you please help me to implement one? >Any resources (i.e. netlist, circuit diagram) will be really >appreciated > >thanks

See...

Newsgroups: alt.binaries.schematics.electronic Subject: Fully Differential (from S.E.D) - FullyDifferential.pdf Message-ID:

Spice can get cantankerous about "DC path to ground", so the schematic on A.B.S.E gives paths on both sides of the VCVS.

You may also need some large-valued resistors elsewhere in your circuit.

Copy also E-mailed.

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
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Reply to
Jim Thompson
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Hi Jim I appreciated your help in fixing my fully differential amplifier. Unfortunately, the output of my chopper stabilized amplifier is a square wave which does not match my sine wave input.

You suggested that I "Scope" the outputs of your differential source simultaneous with your switch drive timing. Can you please explain this a little bit more. I don't understand what I need to do

Thanks

Reply to
tiger66

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