Dear all,
Need some help here ..
I have some doubts regarding DAC by using R-2R ladder.
With reference to the MicroElectronic books by Richard C.Jaeger,
There are differences for output voltage between normal R-2R ladder and inverting R-2R ladder due to the superposition theorem.
From what I know, the difference in these two type is only the switch position. Normal R-2R ladder might lead to linearity error.
Can anyone briefly describe this statement?
If i replace the switch with DIP Switch, that mean it will open circuit when it is not connected to reference voltage, is it okay with this ? Because DIP Switch give the linearity error result that is what the book written Normal R-2R ladder has linearity error.
Can anyone clarify this as well =)
My propose circuit is http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/dac.html (Under R-2R ladder DAC)
Really appreciate your efforts ! =D
Thank you .
Need some help here ..
I have some doubts regarding DAC by using R-2R ladder.
With reference to the MicroElectronic books by Richard C.Jaeger,
There are differences for output voltage between normal R-2R ladder and inverting R-2R ladder due to the superposition theorem.
From what I know, the difference in these two type is only the switch position. Normal R-2R ladder might lead to linearity error.
Can anyone briefly describe this statement?
If i replace the switch with DIP Switch, that mean it will open circuit when it is not connected to reference voltage, is it okay with this ? Because DIP Switch give the linearity error result that is what the book written Normal R-2R ladder has linearity error.
Can anyone clarify this as well =)
My propose circuit is http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/dac.html (Under R-2R ladder DAC)
Really appreciate your efforts ! =D
Thank you .