AD7767: How is the maximun input current on the VREF Pin?
On table 2 of the specification table on page 4, in the Current Specification section. There is the details of Iref for the AD7767-x family. In the case of the AD7767 it has a typical value of 0.35mA and maximum of 0.425mA. The graph in the figure 43, 44 and 45 showed a picture of the Iref at different MCLK frequencies. Are you looking for specific reference current specification for your application. What is your application?
We have two AD7767 in our application and want to use one reference only.
Figure 46 in the Datasheet Rev.0 is differ to Datasheet Rev.C.
Can the reference ADR434 drive 100μF ?
Should a separate reference be used for each AD7767 or is it better to use a reference and an 2 op amp (AD8032) to drive the reference input ?
The ADR43x family allows you to over compensate the loop with a series R-C. So you should
be able to drive 100uF. See the apps section.
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