Project description
FmcAdc200k16b11cha is an 11 channel 200kSPS 16 bit ADC card in FMC (FPGA Mezzanine Card) standard. The input voltage range is settable to /-10V or/-5V. The input impedance is 1MOhm. It is based on the AD7606 ADC from Analog Devices.
Parameter | Value |
---|---|
max. sample rate | 200 kS/s max. |
analog bandwidth | 22 kHz ( /-10 V), 14 kHz (/-5 V) |
bits/sample | 16 bit |
input voltage range | /-10 V,/-5 V software selectable |
channels | 13 - custom made cable, 11 - standard camera link cable |
connectors | Connector Mini D Ribbon (MDR), CAMERA LINK compatible |
antialiasing filter | 2-pole, included |
input impedance | 1 MOhm |
FMC to carrier interface | FMC low pin count connector |
ADC interface | standard (/RD, /WR, parallel data bus) |
Clock [link](https://www.ohwr.org/project/fmc-adc-100k16b8cha/blob/master | internal VCO - for synchronization ability |
Trigger | External and internal with threshold and slope |
Timebase | 200 kS/s to 100 S/s in 1, 2, 5 steps |
Delay | From - Timebase to 2^32 samples |
Time stamps | for trigger, resettable by software |
Coupling | DC only |
Block diagram
Project documents
FmcAdc100k16b8cha schematics - PDF file:
https://www.ohwr.org/project/fmc-adc-100k16b8cha/uploads/098981866f59b2d87ae4d6d5b56556cd/FmcAdc16b100k8cha.pdf
FmcAdc100k16b8cha PCB - PDF file:
https://www.ohwr.org/project/fmc-adc-100k16b8cha/uploads/26e4ba2e83894ddfe446c27e21301cc4/PCB.pdf
Short description of the
schematic:
https://www.ohwr.org/project/fmc-adc-100k16b8cha/uploads/3a606da49dfb68cff5856a78438dcca9/FmcAdc100k16b13cha_description.pdf
Comparison of four ADCs that could be potentially used in the project -
PDF
file:
https://www.ohwr.org/project/fmc-adc-100k16b8cha/uploads/923ad2dbacc71aff723cb56429b62fb2/FmcAdc_8_channel_-_ADC_comparison.pdf
Analog Devices AD7606
ADC
selected.
Connector choice (also used in the digital I/O FMC
project)
https://www.ohwr.org/project/fmc-projects/wikis/FMC_Multi-pin
Status
Date | Event |
---|---|
29-03-2010 | ADC choice made. First draft of the design idea. |
30-03-2010 | Price estimation and widened feature list added. Waiting for the Altium Designer ADC symbol. |
12-07-2010 | Restart of design work. |
20-09-2010 | The PCB is now ready. Waiting for VHDL to be developped. |
01-10-2010 | Designer left. Design has to be reviewed and sent through design office to continue. |
01-07-2011 | Technical student Ross Millar picks up the design. |
19-07-2011 | Several Issues found. Existing prototypes still usable for debugging. |
28-07-2011 | First sine-wave read from the ADC board plugged on a SPEC board attachment:adc-fmc-100ks.png |
21-10-2011 | Schematics design review will be held. |
25-10-2011 | Schematic review : DesignReview21102011. |
15-12-2011 | Schematics improved, PCB redesigned and proto built. Working. |
13-01-2012 | Project on hold as Technical student left. |
Need still to create production files, pre-production proto and finalisation of firmware and documentation. |
Ross Millar, Maciej Fimiarz, Erik van der Bij - 13 January 2012