200 ksps ADC documented
added by Erik van der Bij on 2012-01-30 09:45:47.078743
Ross Millar, student at the University of Glasgow, has worked for six
months at CERN to debug the 200 ksps ADC, write firmware for it and
develop a new version of the circuit board. He wrote an extensive
report about his work.
Before this ADC can be produced in quantity, the final design has to be
verified and the firmware needs to be re-aligned with the firmware of
the 100 MSPS
ADC so it can
more easily be maintained and driver code can be more easily shared.
We needed to put the project on hold because of lack of manpower and the
availability of a commercial and proprietary alternative for CERN's
applications.
09-08-2011: Successful Data Acquisition
added by Ross Millar on 2011-08-09 10:08:28.138109
There has been successful data acquisition on all input channels of the current 100ksps 16bit ADC FMC.
The FMC now requires some redesign to ensure its full compliance with the FMC standard, however the current FMC shall be suitable for testing and further developing the firmware.
A plot of the acquired data for a sine wave incident on one channel can be seen below:
14-06-2010: Evaluating connector type
added by Erik van der Bij on 2010-06-14 14:41:34.830169
We are still looking for the right connector type to use to get ten or more differential channels in. One suggestion is to use the Camera Linkhttp://solutions.3m.com/wps/portal/3M/en_WW/electronics/home/productsandservices/CameraLink/ standard using individually shielded twisted pairs. But also cheaper alternatives as simple flatcables are considered. One may follow the discussion in the Mailing list or its archives.