trashbox
Advanced Member level 4
Hi, guys
The attachment is from Allen and Holberg's book--<<CMOS Analog Circuit Design>> for the CMRR simulation, my question is: from the model (b), how can I get the formula 6.6-3:Vout/Vcm= ±Ac/(1+Av-(±Ac/2))?
According to Allen's errate, there are two issues for this model:
Fig. 6.6-7(b): The polarity of the upper Vcm source should be reversed
Fig. 6.6-7(b): Replace the lower controlled source designation of "±AcVcm" with "±
Ac(V1 + V2)/2"
Thanks for your advice!
The attachment is from Allen and Holberg's book--<<CMOS Analog Circuit Design>> for the CMRR simulation, my question is: from the model (b), how can I get the formula 6.6-3:Vout/Vcm= ±Ac/(1+Av-(±Ac/2))?
According to Allen's errate, there are two issues for this model:
Fig. 6.6-7(b): The polarity of the upper Vcm source should be reversed
Fig. 6.6-7(b): Replace the lower controlled source designation of "±AcVcm" with "±
Ac(V1 + V2)/2"
Thanks for your advice!
