Feb 23, 2005 #1 W wany Member level 2 Joined Oct 18, 2004 Messages 48 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,286 Activity points 377 I am doing 8 bit R-2R ladder DAC . how can i determin the parameter of opamp? Such as gain, bandwidth and so on. thx!
I am doing 8 bit R-2R ladder DAC . how can i determin the parameter of opamp? Such as gain, bandwidth and so on. thx!
Feb 23, 2005 #2 A analogic Junior Member level 1 Joined Nov 24, 2004 Messages 17 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 164 i m not sure, but i think it is similar to the opamp in S/H gain is determined by the resolution, like 8bit, A>2^8+1 GBW is determined by your settling time, 5 times fclk generally SR is determined by the settling speed also
i m not sure, but i think it is similar to the opamp in S/H gain is determined by the resolution, like 8bit, A>2^8+1 GBW is determined by your settling time, 5 times fclk generally SR is determined by the settling speed also
Feb 23, 2005 #3 H Hughes Advanced Member level 3 Joined Jun 10, 2003 Messages 715 Helped 113 Reputation 226 Reaction score 27 Trophy points 1,298 Activity points 5,984 You may refer to chapter 34 of "CMOS Mixed-Signal Circuit Design"