4Bit Binary weighted DAC layout placement

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neoflash

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Folks:

Can you recommend a paper on 4Bit Binary weighted DAC layout placement?

Basically, 16 identical current mirrors will be placed in 4x4 matrix. There is some optimal rule to place them.

Please recommend the doc or paper.

Thanks!
Neoflash

My own idea is
4x 8x 8x 4x
8x 2x Dx 8x
8x 1x 2x 8x
4x 8x 8x 4x
 

the best add dumy around
 

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    neoflash

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sure. Is the internal placement optimal? and any doc reference.
 

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