AD8142, AD8143 reference design


Do you have the reference design for AD8142 and AD8143? I've got the AD8143-AD8145_Customer_Eval_Board_Schematic but most resistance and capacitance are unknown.


  • 0
    •  Analog Employees 
    on Jul 13, 2015 10:38 PM

    Hi, Stephan.

    AD8134 is an older version of AD8142 while the AD8147 is the higher version of both the AD8142 and AD8134. These three just differs in some of the specs like the power supply range, -3dB bandwidth, gain and the size of the exposed paddle. Two reference designs of video drivers are first, the use of AD8134 in the input stage of the AD8175 evaluation board (attached) and second, the use of AD8147 in CN-0275.

    You can aslo build your own AD8142 board by using the attached schematic and then build an AD8143 using the shematic you have and the BOM that I attached. By buillding these boards, you could drive a very long UTP cable but still receive the good quality of your video signal.

    You could also order evaluation boards of AD8142 and AD8143 so you could personally test these parts before making your own boards.

    Let me know if you still have questions on these parts.