This is from a text book:




I dont understand any of it

 

Is that a question?

 

Is that a question?

I dont understand what does it mean to maintain accurate current matching that is independent of Vout nor how how current steering works in this circuit. I dont understand how this circuit works as a dac

 

Do you know how a MOS transistor works?
Do you understand that d1 & d2 are two of the digital data bits?