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Differential difference amplifier for voltages addtition?

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Octago

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differential difference amplifier

could differential difference amplifier be used for voltage addition?
If possible, how could I implement this circuit, is there any reference?

thanks
 

Re: Differential difference amplifier for voltages addtition

Simple:

1. Use two (or more) linear differential voltage to differential current converters

2. Add currents instead

That's all!
 

    Octago

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Re: Differential difference amplifier for voltages addtition

Could you please explain it in more detail?

thanks



rfsystem said:
Simple:

1. Use two (or more) linear differential voltage to differential current converters
 

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