| ID |
Date |
Author |
Subject |
Text |
 |
|
945
|
Wed Jul 1 13:28:26 2026 |
Krzysztof Pelczar | Noise in the 2048-bin version of the eval board | Hello,
I own two 2048-bin evaluation boards,
bought roughly within one year (I assume |
|
|
Draft
|
Mon Jun 29 03:18:30 2026 |
Jonathan Bradshaw | Inquiry about DC-coupled DRS4 hardware design scheme | We are developing a product which
uses the DRS4 with DC coupling. It's
works, but you need to pay attention to the |
|
|
943
|
Mon Jun 15 10:34:33 2026 |
Stefan Ritt | Inquiry about DC-coupled DRS4 hardware design scheme | What you describe is kind of independent
of the DRS4. You can just build it and see
if it works before you connect it to the |
|
|
942
|
Mon Jun 15 09:04:35 2026 |
Mingxin Liu | Inquiry about DC-coupled DRS4 hardware design scheme | Dear Dr. Stefan Ritt,
Thank you for your reply. My previous
description was not accurate enough. We plan |
|
|
941
|
Mon Jun 15 08:18:38 2026 |
Stefan Ritt | Inquiry about DC-coupled DRS4 hardware design scheme | If you DC-couple the THS4508, you risk
that it's output goes to the negative
rail (in your case -1.5), which would destroy |
|
|
940
|
Mon Jun 15 04:39:45 2026 |
Mingxin Liu | Inquiry about DC-coupled DRS4 hardware design scheme | Dear Dr. Stefan Ritt,
Thank you so much for your detailed
and helpful reply. It’s very clear |
|
|
939
|
Fri Jun 12 08:22:30 2026 |
Stefan Ritt | Inquiry about DC-coupled DRS4 hardware design scheme | We do not have any DC-coupled design for
the DRS4. The reason for that is that for
many applications we use SiPMs, which are |
|
|
938
|
Wed Jun 3 04:06:18 2026 |
Mingxin Liu | Inquiry about DC-coupled DRS4 hardware design scheme | Dear Dr. Stefan Ritt,
My name is Mingxin Liu. Our research
group has completed a series of experimental |
|
|
937
|
Tue Apr 28 08:15:35 2026 |
Stefan Ritt | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | The DRS4 gets into the "1.8A"
state if DSPEED approaches like 0.7V. Then
both inverters of the Domino chain are kind |
|
|
936
|
Tue Apr 28 04:40:38 2026 |
QICHAOWU | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | Dear Dr. Stefan Ritt,
I am writing to express my sincere
gratitude for your continued and prompt responses |
|
|
935
|
Fri Apr 17 12:39:11 2026 |
Stefan Ritt | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | Not much I can say here. I know that the
DRS4 works reliably, since we have an experiment
here with 500 chips running since 5 years |
|
|
934
|
Fri Apr 17 10:54:20 2026 |
QICHAOWU | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | Dear Dr.Stefan
Thank you for your detailed response.
Following your suggestion, I used an oscilloscope |
|
|
933
|
Fri Mar 27 09:56:06 2026 |
Stefan Ritt | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | Actually looking at your waveforms again,
I think I understand maybe your problem.
You stop the DRS4 randomly, but your ROI |
|
|
932
|
Thu Mar 5 15:39:30 2026 |
QICHAOWU | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | Thank you for your prompt reply. We have
developed our own DRS4-based hardware and
successfully read out all 1024 bins using |
|
|
931
|
Thu Mar 5 14:52:07 2026 |
Stefan Ritt | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | Does this happen with your own hardware
or with the DRS4 evaluation board? If it's
your own hardware, do you read out all 1024 |
|
|
930
|
Thu Mar 5 14:37:48 2026 |
QICHAOWU | Waveform Truncation Near the Cell0-Cell1023 Boundary in DRS4 ROI Readout Mode | Dear Dr. Stefan Ritt
I am writing to seek your advice
regarding an issue I encountered while using |
|
|
929
|
Tue Aug 19 23:10:30 2025 |
Jonathan Bradshaw | Unexpected behaviour following RSRLOAD | Turns out it was a damaged DRS4 IC.
I ported the drs4_eval5_app code
onto our board and observed much the same |
|
|
928
|
Tue Aug 19 02:40:58 2025 |
Jonathan Bradshaw | Unexpected behaviour following RSRLOAD | Some images
Notes:
top of the puicture shows |
6x |
|
927
|
Mon Aug 18 06:52:51 2025 |
Jonathan Bradshaw | Unexpected behaviour following RSRLOAD | Hello
I'm working to bring up a new
capture board using a DRS4 and I'm having |
|
|
926
|
Mon Jul 7 16:53:26 2025 |
Stefan Ritt | Wrong Firmware Version: board has 13279, required is 15147. Board may not work properly | You have to use the software belonging
to that board. You cannot use the newest
software with an old board. Look here: |
|