[sdiy] (oops) EN #76 question

[Tim Ressel]

(sorry about the subject snafu)

Hi,

I am looking at Electronotes #76 figures 8a and 8b. 8a shows an 8-bit dac made from discrete binary-weighted resistors. We've all seen this type of dac. 

Figure
 8b shows a dac that has gaussian distribution. The thing is, this 
circuit will only produce 8 different levels, as opposed to the 256 
levels of the 8a circuit. Am I missing something here? 




 
Tim Ressel
Circuit Abbey
503-750-9331
timr at circuitabbey.com