AD633 multiplier connection error

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syee10
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Hi,

Currently i am using Proteus 7.4SP3 to simulate the AD633 multiplier. The two input is a trend of pulses and i want to get the output. The problem is that it occur 2 warnings which is then stopped my simulation.

1. [SPICE] DELMIN increased to 1.11022e-016 due to lack of time precision
2. [SPICE] TRAN: Timestep too small; timestep = 0: trouble with node #v:u1:nc#branch

I had attached the jpg for you to refer. Please help and commend about the problem. I need your help very much. Thanks =)
 
Attachments
  • Proteus ISIS schematic of an AD633 multiplier with inputs X1, X2, Y1, Y2, VS+ and VS-, two 0.1uF capacitors C1 and C2, and an output labelled U1(W); a small graph window shows a trace near 12.0 at the top of the axes.
    Prob1.png
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  • Screenshot of the ISIS Professional simulation error log window listing SPICE warnings: DELMIN increased due to lack of time precision, and TRAN timestep too small with trouble at node v:u1:nc#branch.
    Prob2.png
    42.1 KB · Views: 1,012
The four X and Y inputs are op-amp inputs, the unused X2, Y2 inputs must be connected to an appropriate voltage, probably Ground in your circuit.