1 / 11

Preliminary Ladder Testing Results (part 2)

Preliminary Ladder Testing Results (part 2). At IPHC MS, XS, LG. Outline. New running conditions Noise and FPN Offset variation Normal readout mode Self-induced noise Ladder induced noise. New running conditions. Using EX354RT lab power supply for VDD ladder and VDD buffers.

elmer
Download Presentation

Preliminary Ladder Testing Results (part 2)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Preliminary Ladder Testing Results(part 2) At IPHC MS, XS, LG

  2. Outline New running conditions Noise and FPN Offset variation Normal readout mode • Self-induced noise • Ladder induced noise

  3. New running conditions • Using EX354RT lab power supply for VDD ladder and VDD buffers. • Developed noise pickup (?) that triggers overcurrent protection on our standard power modules • Added 9 × 100 nF decoupling capacitors on VDD (1 per sensor, except for sensor 5) • Bypassed bond wires for VDD and GND

  4. New running conditions

  5. Noise

  6. FPN

  7. Noise  FPN

  8. Offset variation

  9. Normal mode readout: self-induced noise (sub-array A fixed threshold @ 5× ) Sensor 2, others HIGH thresholds 9

  10. Ladder induced noise Sensor 2, others LOW thresholds Sensor 2 thresholds: 5×, - 1 mV, -2 mV

  11. Summary • Significant improvement with 9 decoupling capacitors • Additional testing needed with full capacitor complement • Including repeatability • Implications for ladder design: • TBD but likely a separate-power cable version

More Related