Let me ask about input range for AD9783 REFIO.
Our customer is going to use external reference for AD9783 and he wants to know the valid range for external reference.
Could you tell me the valid range for REFIO ?
The REFIO is the reference voltage for the entire part, therefore any variation on this pin will directly impact the performance and output current of the part. We recommend you keep the tolerance on this pin very small (1%-2%), as any variation much further past there was not characterized for this product and specifications may vary from what is listed in the datasheet. This part also has an option for an internal reference and can be used if a tight tolerance on the REFIO pin is not possible.
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