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MPY634 Divider Connection

MPY634 Divider Connection

This question is not answered
Leon Clark
Posted by Leon Clark
on Apr 26 2012 20:41 PM
Prodigy10 points

Hello,

I need to use something to do analogue division, and the MPY634 seems ideal for this purpose. I've tried to simulate the schematic shown in the datasheet using the behavioural model posted somewhere on these forums, and I can't reproduce the proper division behaviour. Moreover, if I substitute (y1 = 0, y2 = vout) into the multiplier's transfer function I get this:

Which matches the output I'm getting from the SPICE simulation. However, I know that the SPICE model is based purely on the transfer function, hence I was wondering whether I would achieve the transfer function shown in the datasheet if I constructed the actual circuit.

Thank you for your help,
Leon

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  • Thomas Kuehl
    Posted by Thomas Kuehl
    on Apr 27 2012 18:54 PM
    Mastermind24260 points

    Hello Leon,

    The basic divider connection and transfer function shown in the MPY634 data sheet are correct.

    Regards, Thomas

    PA - Linear Applications Engineering

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