Apologies, I was a little confused, I thought you were using the AD7626 which is a 10MSPS version of the AD7625. The AD7961 would be good to consider since it is lower power and higher performance than the AD7625.
Regarding your timing…
There are 2 interface modes on the AD7625, echo-clock mode and self-clock mode. In neither case is the clock you apply to the part (CLK+/-) synchronous with the output data (D+/-). This is why that CLK-to-D delay is 7ns max.
Apologies for talking about the AD7625. The AD7265 has flexible reference options. You may opt to use the internal reference and select the 0 to 2xVref range.
the datasheet for the AD7626/Ad7625 show the buexternal ref bufffering of the external 4V096 ref before being applied to the REF pins - I dont see in the datasheet the current requirements on the external Ref.
What would the effect on performance…
Here some ADCs that you may want to consider in your design. I have chosen these ADCs because of their high sampling rate that is suitable to your input frequency and voltage range. the links refer directly to the datasheet of the product…
The AD7625 or AD7626 would be a good fit for you application if you can deal with an LVDS interface, which allows you to use higher input frequencies (e.g. 1MHz). I presume that you would use some kind of signal conditioning to level shift…
I will develop the products of two equipped with HDMI.
I will use the ADV7625 and ADV7626 for these products respectively.
I want to develop these two products as a common board design.
I have some questions in relation to this.
Is it possible…
I have attached a list of some of the ADCs that fit your criteria of 2MSPS sampling rate or higher at resolution of 12bits or more.
You may also wanted to check the ADI website and do a parametric search (http://www.analog.com/ps/psthandler…