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AD8561 Comparator circuit problem

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SAILLESH.SABARISH

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I want to have a simple comparator operation using AD8561 since my application needs faster operation.
I tried with simulation and it was working . when i go for the implementation it doent work.
I want a operation like when the reference voltage goes below 400mv the out put should go high.
i will attach the circuit i am using . Pls correct me if i was wrong.
thanks in advance.
 

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mtwieg

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The AD8561 has three supply pins: V+, V-, and GND. Did you connect them all appropriately? I ask because there's no GND connection in your schematic.
 

SAILLESH.SABARISH

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i have now grounded the 5th pin ...called the balance in the picture .and now every thing works well..
I think that will be the ground.
 

SAILLESH.SABARISH

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yes ..it is a latch pin and i cant make it work after some time....can you suggest me some solutions for this.....
 

keith1200rs

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You might be better off just building it. It is impossible to tell from your schematic if the pin order matches the model sub-circuit which would be where I suspect the problem is, given that the symbol is incorrect.

Keith
 

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