... | ... | @@ -18,18 +18,6 @@ side](https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/18cec002b41606095 |
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[Front
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panel](https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/15432bc9e917e5af3156da89f2d59329/EDA-02063-V1-0-FRONT1s.JPG)
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*First measurements got succeed: 700kHz 90mVpp sinewave recorded with
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the FmcAdc board & the Xilinx
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kit**
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[![](/uploads/d23d4e2b804f82b45e093496b62ea225/sinewave_mini.jpg)](https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/7680bec4c6888ee7463007d76748d658/sinewave.jpg)
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*Noise waveform - with no signal attached to the
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input**
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[![](/uploads/9c9d7164830fe341ea9b59b2812624d7/noise_mini.jpg)](https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/4410a78676d9f4a3b9150f3b15598aaa/noise.jpg)
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[**More about SNR, SINAD and ENOB
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calculation**](https://www.ohwr.org/project/fmc-adc-100m14b4cha/wikis/SNR)
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## Specifications
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<table>
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... | ... | @@ -47,46 +35,50 @@ calculation**](https://www.ohwr.org/project/fmc-adc-100m14b4cha/wikis/SNR) |
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<td>14 bit</td>
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</tr>
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<tr class="even">
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<td>[ENOB](https://www.ohwr.org/project/fmc-adc-100m14b4cha/wikis/SNR)</td>
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<td>11, 11.5, 11.7 bit (@ <em>/-50mV,</em>/-0.5V, +/-5V range)</td>
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</tr>
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<tr class="odd">
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<td>channels</td>
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<td>4</td>
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</tr>
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<tr class="odd">
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<tr class="even">
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<td>connectors</td>
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<td>4 x SMC for signals, 1 x SMC for trigger</td>
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</tr>
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<tr class="even">
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<tr class="odd">
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<td>analog bandwidth</td>
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<td>25 MHz. DC-coupled</td>
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</tr>
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<tr class="odd">
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<tr class="even">
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<td>input impedance</td>
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<td>1 kOhm / 50 Ohm - software selectable</td>
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</tr>
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<tr class="even">
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<tr class="odd">
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<td>gain steps</td>
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<td><em>/-50 mV,</em>/-0.5 V, +/-5 V for full scale</td>
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</tr>
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<tr class="odd">
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<tr class="even">
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<td>offset correction range</td>
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<td>+/- 5 V for every input voltage range</td>
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</tr>
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<tr class="even">
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<tr class="odd">
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<td>max. gain error</td>
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<td>+/- 1 %</td>
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</tr>
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<tr class="odd">
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<td>SNR</td>
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<td>67.7 dB @ <em>/-50 mV, 70.8 dB @</em>/-0.5, 72.2 dB @ +/-5 V</td>
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</tr>
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<tr class="even">
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<td>[SNR](https://www.ohwr.org/project/fmc-adc-100m14b4cha/wikis/SNR)</td>
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<td>67.7 dB, 70.8 dB, 72.2 dB (@ <em>/-50mV,</em>/-0.5V, +/-5V range)</td>
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</tr>
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<tr class="odd">
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<td>FMC to carrier interface</td>
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<td>FMC low pin count connector with internal clock generator / high pin count connector with external clock</td>
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</tr>
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<tr class="odd">
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<tr class="even">
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<td>ADC interface</td>
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<td>Serial LVDS, 2 pairs for each channel</td>
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</tr>
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<tr class="even">
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<tr class="odd">
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<td>Clock [link](https://www.ohwr.org/project/fmc-adc-100m14b4cha/blob/master</td>)
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<td>External, from dedicated FMC connector pins, or from programmed on-board generator</td>
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</tr>
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... | ... | @@ -137,13 +129,14 @@ quantity requested from the supplier. This estimation is for the amount |
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of the components sufficient for 10 boards. The higher number of
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components, the lower the price.
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Current consumption
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measurements:
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https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/aa952e1a4c156792e2388c942e0da25c/FmcAdc_-_current_consumption.pdf
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[Current consumption
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measurements](https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/aa952e1a4c156792e2388c942e0da25c/FmcAdc_-_current_consumption.pdf)
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More about [SNR, SINAD and ENOB
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calculation](https://www.ohwr.org/project/fmc-adc-100m14b4cha/wikis/SNR)
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Changes for the second version of the
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PCB:
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https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/1c45028663ca841392a0dce8860bbb96/changes_for_the_2nd_version.pdf
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[Changes for the second version of the
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PCB](https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/1c45028663ca841392a0dce8860bbb96/changes_for_the_2nd_version.pdf)
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-----
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... | ... | @@ -249,7 +242,7 @@ https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/1c45028663ca841392a0dce |
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</tr>
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<tr class="odd">
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<td>30-07-2010</td>
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<td>ENOB & SNR measured!</td>
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<td>ENOB & SNR measured: >11 bits in all ranges.</td>
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</tr>
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</tbody>
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</table>
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... | ... | @@ -278,5 +271,5 @@ https://www.ohwr.org/project/fmc-adc-100m14b4cha/uploads/1c45028663ca841392a0dce |
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-----
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Maciej Firmiarz, Erik van der Bij - 19 July 2010
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Maciej Firmiarz, Erik van der Bij - 2 August 2010
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