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Dear
I need some clarification:
when u say 48 current sources do u mean that u have 48 separate current sources
OR
Do u have 12 current source for ur DAC with 1 2 3 4 comprising of one current source and so on..............
thanks
kapil
The gaurd rings will not help matching because the gaurd ring will only consists of matals and will not efeect eatching of poly and other layers .
We can improve the right form by placing dummy transistors all over the boundary
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