Designing a multiplier circuit using BJTs

Discussion in 'General Electronics Chat' started by r___eug, Sep 21, 2015.

  1. r___eug

    Thread Starter New Member

    Sep 21, 2015
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    Attached below is an image. Please help me with ideas of designing this multiplier and obtaining the expression for output voltage. Thanks in advance
     
  2. ian field

    Distinguished Member

    Oct 27, 2012
    4,415
    783
    That resembles the Gilbert cell in the Motorola MC1495 or 1496 type chips.

    There are great mounds of application notes for those on the web. Might take a bit of digging, but you should find everything you need.
     
    r___eug likes this.
  3. r___eug

    Thread Starter New Member

    Sep 21, 2015
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    a gilbert's cell is four quadrant and the design is way easier than this. thanks though
     
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