Fast Digitizers ACAS Workshop, December 2010 Greg Tate Agilent Technologies Asia-Pacific Business Manager Modular Product Operations
Digitizers are extensively used in accelerators around the world
Evolution of modular standards to support new needs in Physics CAMA C FASTBU S VME/VXS VPX 1980-? cPCI/PX I 1995-? ATCA 2002-? AXIe 2010-? PCIe ?
Agilent Data Converter Market Coverage Resolution (bits) SR (MS/s) High-Resolution LXI Digitizers Acqiris High-Speed Digitizers Agilent Scopes USB Digitizers AWG
Current Digitizer Limitations ResolutionSampling RateBandwidth 8 Bit8 GS/s*3 GHz* 10 Bit8 GS/s3 GHz 12 Bit2 GS/s1 GHz 14 bit400 MS/s200 MHz 16 bit200 MS/s100 MHz * 40 GS/s and 13 GHz in a standalone instrument
Up to 400 MB/sec data transfer to host PC using 64-bit/66 MHz PCI 10-bit, 8 GS/s, up to 3 GHz BW Clock accuracy ~1 ppm Drivers for Windows, Phar Lap ETS, VxWorks and Linux. Some Digitizer Examples Top of the Range: U1065A 10-bit, 8 GS/s Digitizers Single-slot 6U CompactPCI < 50 W 4-, 2- and 1-ch
U1071A High-Speed PCI cards Compact design and highly integrated technology for extremely low power consumption Simultaneous multibuffer acquisition and readout (SAR) mode that significantly improves measurement throughput 1-2 GS/s Sampling Rates 1 GHz bandwidth 250 MB/s transfer speeds Memory up to 256 Mpoints
Group/Presentation Title Agilent Restricted Power Consumption 15 W
Group/Presentation Title Agilent Restricted Simultaneous Multibuffer Acquisition and Readout
Data Transfer - The PC Peripheral Bus and the Need for Speed Current generation products are using PCIe which offers up to 2 GB/s performance.
When you can’t get the data out fast enough FPGA’s are being used On-board Data Processing Unit to: Perform on-the-fly processing (pre-loaded or custom algorithms) Downsizes the digitized data volume Dramatically boosts measurement throughput Offload tasks from the host processor Open architecture with Firmware Development Kit (FDK)
Group/Presentation Title Agilent Restricted U1084A – PCIe Analyzer Card Sampling Rate up to 4 GS/s –Dual-channel 2 GS/s Bandwidth 1.5 GHz Data Transfer up to 520 Mbytes/s Xilinx Virtex 5 FPGA’s with 512M processing memory PeakTDC and Averaging Firmware
Group/Presentation Title Agilent Restricted U1084A Main Features Fully functioned front end PCIe x 4 Dual Inputs Control I/O Virtex5 FPGA 512M Processing Memory
Typical setup for monitoring electron beams as used by the Australian Synchrotron The system demands high sampling rate (currently 8 GS/s) and rapid data transfer (400 MB/s).
The Future Introducing AXIe: A New Instrumentation Standard AdvancedTCA (ATCA) Extensions for Instrumentation and Test AXIe Consortium, Inc Members: Publicly introduced November 10, 2009 Specification Ratification –June, 2010 Web site: *Founding Members * Test Evolution Corporation * *
Key AXIe, VXI and PXIe Comparison FeatureAXIeVXIPXIe Chassis baseAdvancedTCAVMEcPCI/cPCIe PCIe maximum data bandwidth ( Maximum Gen 2.0): Single peripheral slot to backplane All peripheral slots to system slot/embedded controller 2 GB/s 26 GB/s MB/s 4 GB/s 8 GB/s PCIe fabricYesNoYes LAN backplaneYesNo Local bus18 pairs req 62 pairs opt 12 separate lines1 line (13 PXI) TriggersBidirectional Star Trigger 13 signal MLVDS bus 8 Signal TTL bus 2 ECL Star Trigger(1xTTL, 3x Diff per slot) 8 Signal TTL bus Frequency Reference & Sync100MHz, yes10MHz, yes10MHz, 100MHz, yes Power per slot200 W W30 W Board space per slot (higher density, flexibility) 900 cm 2 C size 782 cm cm 2 Modules availableNew>300~
PXI and AXIe Coexistence Scalability and Compatibility Common control via Rack mounted controller, or Embedded controller in chassis, or Desktop controller Common Programming Environment PXI LXI PXI AXIe Stand-alone PC
AXIe offers a number of advantages for the future Larger board size allows Higher channel density More on-board computing (access to bigger FPGA’s) Carrier capability for other standards (PXIe, etc.) More power allows Use of scope technology (ultra high sampling rates and bandwidth) and higher power components (bigger FPGA’s) ATCA and PCIe adoption means super computer backplane with significantly faster (2- 10 times) data transfer
Future of Test: Choice of Software Platform IVI-C,COM,.NET, LabVIEW G drivers, Calibration, Soft Front Panels, Chassis Management, IO Libraries Signal Studio Waveform Editing Jitter Generation VSA Digital Debug Waveform analysis Programming Environment 19 MATLAB LabWindows CVI Visual Studio LabVIEW Agilent Measurement Science Agilent Applications C#, C/C++ VB.NET VEE …. System Vue
Questions/Discussion 20 Visit for more informationwww.agilent.com/find/modular
Group/Presentation Title Agilent Restricted Agilent U1050A TDC’s – Works like a stop watch! 12-channel single hit time-to-digital converter 5 and 50 ps timing resolution 20 second timing window Memory buffer with up to 512 events Low Jitter (< 3 ps rms) External 10 MHz reference input FPGA-based data processing unit Fast DMA readout mode for increased data throughput Built-in self test and status monitoring Modular, single-slot 6U PXI/CompactPCI form factor Low power consumption (< 25 W)
Group/Presentation Title Agilent Restricted Agilent Acqiris U1051A Time to Digital Converter 6-channel multistop time-to-digital converter (TDC) with multistart acquisition mode 50 ps timing resolution Large internal memory buffer, with up to 4 million events External 10 MHz reference input FPGA-based data processing unit Fast DMA readout mode for increased data throughput Data streaming mode allows continuous acquisition and readout Built-in self test and status monitoring Modular, single-slot 6U PXI/CompactPCI form factor Low power consumption (< 24 W)