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AD8279 difference amplifier - Vref pin

Question asked by jr123 on Jan 7, 2018
Latest reply on Jan 8, 2018 by krisf



I am using the AD8279 difference amplifier and am looking to add an offset voltage using the Vref pin. The datasheet recommends using a an OP1177 amp as a buffer between the Vref pin and the reference voltage. Can I use one OP1177 to provide the reference voltage for multiple difference amplifiers? Or do I need to have a separate OP1177 to buffer each Vref pin?