Thursday, July 13, 2017

5T Pixel in SPICE

International Journal of Advanced Research in Computer and Communication Engineering publishes a paper "Optimized Design of Active Pixel Sensor using CMOS 180 nm Technology" by Dipti, Rajesh Mehra, and Deep Sehgal.

Contrary to the whole industry spending a lot of money on expensive device simulators, the authors simulate everything in SPICE:


The proposed timing sequence works well, just does not perform CDS and the small signals do not go through, not to talk about extra sensitivity to FD leakage:

4 comments:

  1. TX stays high during integration? Doesn't seem to make sense...

    ReplyDelete
  2. Spectre and Cadence virtuoso (as reported in the "paper") are not exactly cheap...

    ReplyDelete
    Replies
    1. True, as long as you do not compare them with Synopsys Sentaurus 3D.

      Delete
  3. hey, it's only a few transistors and a photodiode. How hard can it be?

    http://m.eet.com/media/1160635/pease_and_william_rememberance_slide14_pease_throwing_computer_small.jpg

    from http://www.edn.com/Home/PrintView?contentItemId=4375963

    ReplyDelete

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