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GRAPH — an readout ASIC for large MCP based detectors

Journal Article · · Journal of Instrumentation
 [1];  [2];  [3];  [4];  [5]
  1. Jozef Stefan Institute, Ljubljana (Slovenia); University of Hawai’i at Manoa, Honolulu, HI (United States)
  2. University of California, Berkeley, CA (United States)
  3. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); University of Hawai’i at Manoa, Honolulu, HI (United States)
  4. Techne Instruments, Oakland, CA (United States)
  5. University of California, Berkeley, CA (United States); Techne Instruments, Oakland, CA (United States)
+ Show Author Affiliations

We present a programmable 16 channel, mixed signal, low power readout ASIC, having the project historically named Gigasample Recorder of Analog waveforms from a PHotodetector (GRAPH). It is designed to read large aperture single photon imaging detectors using micro channel plates for charge multiplication, and measuring the detector's response on crossed strips anodes to extrapolate the incoming photon position. Each channel consists of a fast, low power and low noise charge sensitive amplifier, which provides a myriad of coarse and fine programmable options for gain and shaping settings. Further, the amplified signal is recorded using, to our knowledge novel, the Hybrid Universal sampLing Architecture (HULA) ADC. A kind of mixed signal double buffer memory, that enables concurrent waveform recording, and selected event digitized data extraction. The sampling frequency is freely adjustable between few kHz up to 125 MHz, while the chip's internal digital memory holds a history 2048 samples for each channel, with a digital headroom of 12 bits. An optimized region of interest sample-read algorithm allows to extract the information just around the event pulse peak, while selecting the next event, thus substantially reducing the operational dead time. The chip is designed in 130 nm TSMC CMOS technology, and its power consumption is around 47 mW per channel.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
2574606
Journal Information:
Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 01 Vol. 20; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

References (9)

Centroiding algorithms for high speed crossed-strip readout of microchannel plate detectors
  • Vallerga, John; Tremsin, Anton; Raffanti, Rick
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 633 https://doi.org/10.1016/j.nima.2010.06.181
journal May 2011
The Timepix4 analog front-end design: Lessons learnt on fundamental limits to noise and time resolution in highly segmented hybrid pixel detectors
  • Ballabriga, R.; Alozy, J. A.; Bandi, F. N.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1045 https://doi.org/10.1016/j.nima.2022.167489
journal January 2023
Development of a hybrid single-photon imaging detector with embedded CMOS pixelated anode journal November 2022
A fast, low power and low noise charge sensitive amplifier ASIC for a UV imaging single photon detector journal April 2017
Prototype readout system for a multi Mpixels UV single-photon imaging detector capable of space flight operation journal February 2018
Optical MCP image tube with a quad Timepix readout: initial performance characterization journal May 2014
UV MCP Detectors for WSO-UV: Cross Strip Anode and Readout Electronics journal April 2013
Cross strip anode readouts for large format, photon counting microchannel plate detectors: developing flight qualified prototypes of the detector and electronics conference July 2014
ASICs and Readout System for a multi Mpixel single photon UV imaging detector capable of space applications conference March 2018

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Related Subjects

Data acquisition circuits
Data acquisition concepts
Front-end electronics for detector readout
Optical detector readout concepts