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how to build 12bit 1GS/S DAC?

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liuguojia387

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12bit 1GS/S DAC

I want to design a 12-bit 1GS/S DAC. Can anyone give me some advice about the design of the switching and current cell?

thanks in advance!
 

Hi Liuguojia387, Which Process you used, 65nm or 130nm? 12b 1GSps DAC with SFDR of 70dB? Though It is so popular a design, Switches and current cell may be the same as those used in 100MHz ~ 200MHz Cases. My understanding, the most tricky things to handle is high frequency Dynamics and Power Supply Spikes. Static or Low frequency Linearity maybe calibrated using Random Algorithm.
 

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