Title :
An amplifier-discriminator chip for the GLAST silicon-strip tracker
Author :
Johnson, R.P. ; Poplevin, P. ; Sadrozinski, H.F.-W. ; Spencer, E.N.
Author_Institution :
Inst. for Particle Phys., California Univ., Santa Cruz, CA, USA
fDate :
6/1/1998 12:00:00 AM
Abstract :
An amplifier-discriminator circuit has been designed for reading data from the silicon-strip detectors of the Gamma Large Area Space Telescope (GLAST). For the 38 pF expected detector loading, an equivalent noise charge (ENC) of 1600 electrons has been demonstrated on a 32-channel chip with a power consumption of under 150 μW per channel and a 1 μS time constant. The typical rms threshold variation was under 750 electrons ENC. These results satisfy the requirements of the GLAST mission
Keywords :
CMOS analogue integrated circuits; amplifiers; astronomical instruments; discriminators; gamma-ray astronomy; nuclear electronics; silicon radiation detectors; GLAST silicon-strip tracker; Gamma Large Area Space Telescope; Si; amplifier-discriminator chip; equivalent noise charge; power consumption; typical rms threshold variation; Electrons; Gamma ray detection; Gamma ray detectors; Instruments; Poles and towers; Research and development; Satellites; Space technology; Strips; Telescopes;
Journal_Title :
Nuclear Science, IEEE Transactions on
