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AD7608 input range extensible by adding resistors in series?

Question asked by Oskar on Mar 21, 2018
Latest reply on Mar 22, 2018 by Oskar

In order to extend the analog input range of the AD7608 by 10 % (+/-11 V instead of +/-10 V), i would like to add precision resistors of 100 kΩ in series to each input pin. I think this should work because the AD7608 has 1 MΩ input resistors in front of an OpAmp with feedback resistors, according to the datasheet. Can I expect precise results if I create a circuit according to this simple idea?