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What's wrong with this model in LTSPICE

gary36

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I am simulating a multiplier AD734 in LTSPICE. I have downloaded from the link https://www.analog.com/en/products/ad734.html#tools-header.
Mysteriously, I do not get the output as expected which should be (x1-x2)(y1-y2)/10. With both inputs changed to DC source, 1 V each, I get 1.65V, instead of 0.1V.
What's wrong with the circuit?
 

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