gopalece
Newbie
Replacing resistor ladder in flash adc using mosfet
I am designing flash ADC in mentor graphics.I replaced resistor ladder using diode connected mosfets.I am getting correct reference levels before connecting circuitary(i.e comparator,encoder).But when I am repacing the diode connected mosfets in ADC , getting variations in the reference levels.How can I get correct reference levels?
I am designing flash ADC in mentor graphics.I replaced resistor ladder using diode connected mosfets.I am getting correct reference levels before connecting circuitary(i.e comparator,encoder).But when I am repacing the diode connected mosfets in ADC , getting variations in the reference levels.How can I get correct reference levels?