power calculations of analog multiplier

Discussion in 'General Electronics Chat' started by almoatazbellah, Mar 31, 2011.

  1. almoatazbellah

    Thread Starter New Member

    Nov 24, 2010
    22
    0
    hi all,

    i have a question about an analog multiplier IC

    http://www.analog.com/static/imported-files/data_sheets/AD835.pdf

    it has two input signals and one output, am using this IC as a modulator
    according to the datasheet it has an internal power dissipation equal to 300mW, the question is this power dissipation will be dissipated from the sum or the multiplication of the powers of the input signals.. i want to calculate the output power thats why am asking...any help would be appreciated
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    No the power dissipation won't be the sum or the multiplication of the powers of the input signals.

    It will probably be relatively constant for a given power supply voltage. The maximum dissipation would possibly occur with the maximum output signal swing case.
     
  3. almoatazbellah

    Thread Starter New Member

    Nov 24, 2010
    22
    0
    is there a way to calculate the output power theoretical ?
     
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