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MAX192 ADC schematics?
Forum -> Project Help
well ..
it is generally preferred not to connect VREF to VDD.

mostly in case of sensitive ADC application u either use two separate power supplies... for Analog and digital sections or simply isolate digital ground from analog ground.

but if it is just an experiment... just add a variable resistor/pot (small value) between VDD and Vref.
u are also supposed to add a zero ohm impedance between your...

variable resistor   ohm impedance   digital sections   analog signal   adc   
Posted by shyam on Saturday 09 August 2008 - 08:59:36



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