Libera Digit 125

The Libera Digit 125 is a general purpose digitizer with 4 channels and a sampling frequency of 125 MHz. The data is stored in a configurable buffer with max 8 M data samples stored per channel. Instrument is available in AC and DC version. The DC-coupled version has a front-end with 40 MHz bandwidth, suitable for time-domain processing of signals coming from different types of sensors. The AC-coupled front end has a bandwidth ranging from 10 MHz to 700 MHz and is suitable for narrow-band signals and digital down-conversion applications.

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Benefits:

  • 4 channels sampled at 125 MS/s with 14-bit ADCs
  • AC coupled and DC coupled versions
  • 31 dB variable gain for DC version
  • EPICS, Tango, Python, Matlab and LabVIEW compatible
  • Passive cooled, PoE compatible

Libera Digit 125 front and back panel:

Data Processing:

One LEMO trigger input is used to trigger the data acquisition in a large ADC buffer with total size of 8 MS per channel. The data buffer size can be reduced in order to support higher acquisition trigger frequencies.

Libera Digit 125 block diagram:

Libera Digit 125 Capabilities
VariantDCAC
General product codeL1251.00DL1251.00A
Channel number44
Sampling frequency [MS/s]125125
Resolution [bit]1414
BWDC-40 MHz10 MHz - 700 MHz
Coupling50 Ω/1MΩ50 Ω
Max input±5 V @ 50 Ω 1.25 V @ 1M Ω1 V/10 dBm
Input again / attenuation0-31 dB
Triggering level3.3 V TTL LEMO3.3 V TTL LEMO
Max trigger frequency [Hz]22
Reference clockNoNo
FPGAXilinx Zynq 7020Xilinx Zynq 7020
PoEYesYes
Access interfacesSSH/Tango/EpicsSSH/Tango/Epics
Available extensions (SW to be developed by the user)- DAI1 module - SFP connectors on Libera Digit 500- DAI1 module - SFP connectors on Libera Digit 500
Max acquisition length [samples]8 M8 M
DimensionsH: 1 U, W: 9.5" (rack mountable with a kit), D: 210 mmH: 1 U, W: 9.5" (rack mountable with a kit), D: 210 mm

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Libera Digit 125 Datasheet
Kees Scheidt
Diagnostics Head (ESRF, Grenoble)

On our Booster beam, we collected much data and features, that we could not measure or even detect before.

Engineering Executive
NDA locked

The prototyping and development Instrumentation Technologies has provided for our team has been exceptional.

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Libera Digit 125 is used at the following labs:

  • HiSOR – Hiroshima Synchrotron Radiation Center, Japan
  • J-PARC – The High Energy Accelerator Research Organization-KEK, Japan
  • Kaeri – Korea Atomic Energy Research Institute (KAERI), South Korea

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