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AD5791 Reference Buffer Opamps

Question asked by smacleod on Aug 11, 2014
Latest reply on Aug 25, 2015 by jfitzger131

The data sheet and reference designs recommend the AD8676 for voltage reference buffers.  I would like to use an opamp that draws less supply current than the 3.4mA max of the AD8676.  The ADA4077-2 looks to have similar performance specs, and draws only 0.5mA.  The DC specs of the ADA4077-2 are fine for my application.  But it has a slightly lower bw than the AD8676; 4MHz vs. 10MHz.  Can anyone comment if I would be risking settling time or any other performance specs by using the ADA4077?

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