AD5628-2 Characteristics (Output range and -X)

Hi

We will use 2.5V or 5V output DAC.(8ch)

These Outputs connect to some amp. 

AD5628 specifications have two VDD condition.(VDD=4.5V to 5.5V and  2.7V to 3.6V) 

Can we find AD5628-2 2.5V outputs with external VREF=2.5V?

(Can we get below character with AD5628-2)

And can we know FULL SCALE worst source current?

In figure32, FULL SCALE is not output 5V at 0mA .

About how sink current is required to 5V output?(and how VDD voltage is required to 5V output?)

Is it same character with external VREF=5V?

I have more one fundamental question.

In Figure 32 and Figure 33

Is 0 to plus current sink current? (Is minus to 0 current source current?)

 

Best regards

Top Replies

    •  Analog Employees 
    •  Super User 
    Jun 3, 2020 +1 verified

    Hi Fujiwara-san,

    Can we find AD5628-2 2.5V outputs with external VREF=2.5V?

    Figures 32 and 33 are applicable to both internal and external reference. 

    And can we know FULL SCALE worst…
    •  Analog Employees 
    Jun 3, 2020 +1 verified

    Hi ,

    Thanks for the interest on AD5628. May I know which application this DAC is going to be used?

    Have you looked at AD5676R which has better output current drive capability? Thanks!

    Cheers,

    Ivan

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