ASD IC for the thin gap chambers in the LHC Atlas experiment

Journal Article · Wed Dec 01 04:00:00 EST 1999 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers)

DOI:https://doi.org/10.1109/23.819243· OSTI ID:20015402

Sasaki, Osamu; Yoshida, Mitsuhiro

An amplifier-shaper-discriminator (ASD) chip was designed and built for Thin Gap Chambers in the forward muon trigger system of the LHC Atlas experiment. The ASD IC uses SONY Analog Master Slice bipolar technology. The IC contains 4 channels in a QFP48 package. The gain of its first stage (preamplifier) is approximately 0.8V/pC and output from the preamplifier is received by a shaper (main-amplifier) with a gain of 7. The baseline restoration circuit is incorporated in the main-amplifier. The threshold voltage for discriminator section is common to the 4 channels and their digital output level is LVDS-compatible. The IC also has analog output of the preamplifier. The equivalent noise charge at input capacitance of 150 pF is around 7,500 electrons. The power dissipation with LDVS outputs (100 {Omega} load) is 59mW/ch.

• Research Organization: High Energy Accelerator Research Organization, Tsukuba, Ibaraki (JP); Inst. of Particle and Nuclear Studies, Tsukuba, Ibaraki (JP)
• OSTI ID: 20015402
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers) Journal Issue: 6Pt2 Vol. 46; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFIERS
CERN LHC
DESIGN
INTEGRATED CIRCUITS
MUON DETECTION
PULSE DISCRIMINATORS
PULSE SHAPERS
RADIATION DETECTORS
TRIGGER CIRCUITS