Symmetric input

  • Thread starter Garoll
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I would like to ask you what it is meant by "symmetric input" in the instrumentational amplifier schematics and in the differential amplifier? I can`t understand what is the difference between symmetric and non symmetric input and output as parameters. Can anyone explain ?

Thanks
 

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  • #2
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I would like to ask you what it is meant by "symmetric input" in the instrumentational amplifier schematics and in the differential amplifier? I can`t understand what is the difference between symmetric and non symmetric input and output as parameters. Can anyone explain ?
Probably they mean a balanced diferential input, like

Vplus = A·sin(ωt), and

Vminus = -A·sin(ωt)

Bob S
 

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