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common mode level in vcvs

paulinho

the vcvs in analoglib is by default fully differential (both input and output is differential). Say if i give an input of 1.5V to both input terminals (vcvs having a gain of 1), and I want the same values at the output, how do I do it. Even though the differential output is 0V, the common mode levels at the output seem to be at some arbitrary level.

  • ShawnLogan

    Dear paulinho,

    paulinho said:
    Say if i give an input of 1.5V to both input terminals (vcvs having a gain of 1), and I want the same values at the output, how do I do it

    Would something like this work in your application?

    Shawn

  • Andrew Beckett
    in reply to ShawnLogan

    Isn't the simplest solution to have two vcvs sources with the minus pins all connected to ground? Then have the two + input pins connected to the two input voltages, and the two output + pins will reflect the input pins. It's not really a differential input you want for a controlled source, if I've understood your description properly.

    Andrew

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