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AD7266 beyond the rails

Question asked by zanzibar on Jan 24, 2014
Latest reply on Jan 27, 2014 by jcolao



I use AD7266 as single ADC with channel A and B simultaneous sampling.


To limit the input overvoltages I use some serial resistors in inputs which leads to 3 mA on each input (<10mA absolute max rating as specified in datasheet). 


If the input signal is going beyond the rails, did we get  000 or FFF ( in steady state ) ? or can we get something else ?