A pipelined multiranging integrator and encoder ASIC for fast digitization of photomultiplier tube signals
Conference
·
OSTI ID:5018280
A new full custom chip is being designed using the Orbit 2 micron BiCMOS'' process to provide a wide range fast digital readout of Photomultiplier Tubes. The goal is to obtain a digitized PMT signal with a 18--20 bit dynamic range and 8 bits of accuracy in a floating point number format every 16 ns. The chip is DC coupled to a PMT and uses a four-way gated integrator and encoder to form a 4 bit binary number which is the exponent of the floating point number. Simultaneous processing of the PMT signal on binary weighted scales provides a pipelined analog signal to a single FADC which generates the floating point number mantissa. The current state of development of this new chip and results from several test chips are presented in this paper. 3 refs.
- Research Organization:
- Fermi National Accelerator Lab., Batavia, IL (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 5018280
- Report Number(s):
- FNAL/C-92/148; CONF-9205210--1; ON: DE92016348
- Country of Publication:
- United States
- Language:
- English
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· IEEE Transactions on Nuclear Science
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Related Subjects
42 ENGINEERING
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
ANALOG-TO-DIGITAL CONVERTERS
CAPACITORS
DESIGN
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
INTEGRATED CIRCUITS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
PERFORMANCE TESTING
PHOTOMULTIPLIERS
PHOTOTUBES
RADIATION DETECTORS
RESOLUTION
SIGNALS
TESTING
TIME RESOLUTION
TIMING PROPERTIES
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
ANALOG-TO-DIGITAL CONVERTERS
CAPACITORS
DESIGN
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
INTEGRATED CIRCUITS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
PERFORMANCE TESTING
PHOTOMULTIPLIERS
PHOTOTUBES
RADIATION DETECTORS
RESOLUTION
SIGNALS
TESTING
TIME RESOLUTION
TIMING PROPERTIES