Converter from Differential to Single Ended and Cable Driver
Project description
This cable driver is an active electronics circuit which aims at solving several issues often encountered in large hardware installations where analog signals need to be digitized at a large distance from the origin of the signal.
It aims to solve:
- Noise on the signal reception due to the use of high-precision instrumentation amplifiers on the source, combined with long cabling
- Signal clipping/saturation on the OASIS digitizers due to lack of possibility for attenuation on differential signals
- Signal polarity issues
- Ground loop issues
The cable driver requires an external power supply, providing 9V-36V DC voltage.
Main Features
- high-current differential receiver
- optional attenuation (0dB, 6dB, 10dB or 12dB)
- polarity inversion on input and output
- ground lifting on input and output
Project information
Releases
version:v1.0
Sources
All the sources are available in the git repository under the tag v1.0 (commit hash commit:3b450ffc).
A PDF version of the schematic is also available.
Production files
Gerber files, Excellon drill files, pick-n-place positioning files, bill of materials and an export of the board in GenCAD format are available as a compressed archive file.
Commercial producers
This design is not commercially available (to our best knowledge).
v0.1 (original concept)
Original concept design files (done in Altium) are available as a compressed archive file. These files are provided "as is", they are not supported in any way, nor should they be used for production.
Contacts
General questions about project
- Dimitris Lampridis - CERN
Status
Date | Event |
17-01-2013 | Idea of New OASIS analog front-end presented. |
16-07-2016 | First iteration of schematic and PCB layout done with Altium. |
01-08-2016 | Schematic and PCB layout ported to KiCad and finalised. |
15-09-2016 | Order for the production of 18 bare PCBs placed with commercial PCB manufacturer. |
26-09-2016 | Production files delivered to CERN's electronics design office for PCB population. |
30-09-2016 | 18 bare PCBs received. |
04-10-2016 | Bare PCBs and components delivered to CERN's electronics design office. |
24-10-2016 | 18 complete boards received and tested, ready for installation in CERN's OASIS system. |
Dimitris Lampridis, Erik van der Bij - January 2017