The first version buffered large analog bandwidth (BLAB1) ASIC for high luminosity collider and extensive radio neutrino detectors

Varner, G.; Ruckman, L.; Wong, Andre

doi:10.1016/j.nima.2008.03.095

Cited by 43 publications

(19 citation statements)

References 14 publications

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“…Using a variant of third-generation Buffered Large Analog Bandwidth (BLAB) ASICs [7], the waveforms are continuously sampled into a Switched-Capacitor Array (SCA) that has ∼ 10 µs of analog memory. When a trigger comes from the Belle II Global Decision Logic (GDL), the ASIC looks back in analog memory and digitizes the region of interest corresponding to the time of the event that caused the trigger.…”

Section: Hardwarementioning

confidence: 99%

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm × 10 cm × 8 cm package

Andrew

Lim

Nishimura

et al. 2012

2012 18th IEEE-NPSS Real Time Conference

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Extremely fast timing from Microchannel Plate PhotoMultiplier Tubes (MCP-PMTs) and multi-gigasample per second (GSa/s) waveform sampling ASICs will allow precision timing to play a pivotal role in the next-generation of Ring Imaging CHerenkov (RICH) detectors. The Instrumentation Development Laboratory at the University of Hawai'i has developed a prototype of the electronics to instrument the Imaging Time of Propagation (iTOP) counter for the Belle II detector at KEK in Tsukuba, Japan. The front-end electronics modules consist of an array of waveform sampling / digitizing ASICs controlled by an FPGA. The ASICs digitize signals from an array of multianode MCP-PMTs coupled to a quartz radiator bar. Readout and control are done via multi-gigabit-per-second fiber optic links to a custom back-end, where Digital Signal Processors (DSPs) correct for unwanted artifacts in the data before performing feature extraction.Variants of the modules will be used in other applications in addition to Belle II, including a tabletop neutrino detector, beam size monitoring at SuperKEKB, readout of wavelength shifting fibers for the Belle II KL/µ system, and a Focusing Detection of Internally Reflected Cherenkov (fDIRC) prototype. Important aspects of the system include thermal management problems in a very compact module, as well as the expected lifetime of the module in the intended high radiation environment(s). Our experiences running these modules as standalone entities with a pulser/laser on the bench have fed into the design of the next version of each component in the system. Cosmic ray tests and running a full system at a Fermilab beam test in late 2011 have contributed to our understanding of needed improvements for the system as a whole.

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Section: Hardwarementioning

confidence: 99%

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm × 10 cm × 8 cm package

Andrew

Lim

Nishimura

et al. 2012

2012 18th IEEE-NPSS Real Time Conference

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“…However, as a feasibility exercise, we have a strawman circuit that is based upon previous ASIC designs of ours (U. Hawaii) [17][18][19][20] shown schematically in Fig. 15.…”

Section: Strawman Designmentioning

confidence: 99%

Large-format high-spatial resolution cross-strip readout MCP detectors for UV astronomy

Vallerga

Raffanti²,

Tremsin

et al. 2010

Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray

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We have implemented cross strip readout microchannel plate detectors in a 40mm diameter active area format, open face (UV/particle) configuration. These have been tested with a field programmable gate array based parallel channel electronics for event encoding which can process high input event rates (> 5 MHz) with high spatial resolution. Using small pore MCPs (6 m) operated in a pair, we achieved spatial resolution of < 20 m FHWM at MCP gain of 1x10 6 eper event. Future large aperture UV missions require detectors to have large formats (> 100 mm) with high event rate throughput (~ MHz) while retaining high spatial resolution. We will discuss our plans to scale our 47 mm square anodes to 100 mm and our ideas for the next front end ASIC that combines a state-of-the-art, fast charge sensitive amplifier with fast sampling analog storage and built in ADCs.

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“…By using this proportionality, the sampling interval can be determined individually from the differential amplitude for all the capacitor cells. Currently, several high-speed waveform sampling ASICs [7][8][9] based on the switched-capacitor cell technology are available in addition to the DRS4, and several time calibration methods developed for those ASICs have been reported in the literature [9][10][11][12]. Among them, the method [10] by Breton et al is similar to our approach: the sampling interval is extracted from a segment of a sine wave around a zero-crossing point while assuming linearity of the sine wave in the segment.…”

Section: Introductionmentioning

confidence: 99%

A new time calibration method for switched-capacitor-array-based waveform samplers

Kim¹,

Chen²,

Eclov³

et al. 2014

Nuclear Instruments and Methods in Physics Research Section A:

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We have developed a new time calibration method for the DRS4 waveform sampler that enables us to precisely measure the non-uniform sampling interval inherent in the switched-capacitor cells of the DRS4. The method uses the proportionality between the differential amplitude and sampling interval of adjacent switched-capacitor cells responding to a sawtooth-shape pulse. In the experiment, a sawtooth-shape pulse with a 40 ns period generated by a Tektronix AWG7102 is fed to a DRS4 evaluation board for calibrating the sampling intervals of all 1024 cells individually. The electronic time resolution of the DRS4 evaluation board with the new time calibration is measured to be ~2.4 ps RMS by using two simultaneous Gaussian pulses with 2.35 ns full-width at half-maximum and applying a Gaussian fit. The time resolution dependencies on the time difference with the new time calibration are measured and compared to results obtained by another method. The new method could be applicable for other switched-capacitor-array technology-based waveform samplers for precise time calibration.

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The first version buffered large analog bandwidth (BLAB1) ASIC for high luminosity collider and extensive radio neutrino detectors

Cited by 43 publications

References 14 publications

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm × 10 cm × 8 cm package

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm × 10 cm × 8 cm package

Large-format high-spatial resolution cross-strip readout MCP detectors for UV astronomy

A new time calibration method for switched-capacitor-array-based waveform samplers

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The first version buffered large analog bandwidth (BLAB1) ASIC for high luminosity collider and extensive radio neutrino detectors

Cited by 43 publications

References 14 publications

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm &#x00D7; 10 cm &#x00D7; 8 cm package

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm &#x00D7; 10 cm &#x00D7; 8 cm package

Large-format high-spatial resolution cross-strip readout MCP detectors for UV astronomy

A new time calibration method for switched-capacitor-array-based waveform samplers

Contact Info

Product

Resources

About

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm × 10 cm × 8 cm package

128 channels of multi-gigasample-per-second waveform sampling and digitization in a 10 cm × 10 cm × 8 cm package