Pedestal drift and cable pickup problems in multiplexed analog signal transmission

Conference · Mon Feb 01 04:00:00 EST 1988 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:7197841

Bernier, R; Breton, D; Chase, R L; Parey, J Y

Sample and hold circuits, followed by analog multiplexing, are often used to reduce the number of cables required between large multi-element high energy detectors and their associated analog-to-digital converters. All sample and hold circuits have charge injection pedestals which may vary with time, temperature and power supply voltages. These variations are often correlated among many channels so that total energy sums may be degraded, even though individual pedestal drifts remain negligible. A double sampling system is described which substantially decreases charge injection pedestals and their variations. The effects of low frequency pickup in long signal cables, which also tend to be correlated, are very much reduced as well.

• Research Organization: Laboratoire de l'Accelerateur Lineaire, 91405 Orsay (FR)
• OSTI ID: 7197841
• Report Number(s): CONF-871006-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: 35:1
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANALOG SYSTEMS
ANALOG-TO-DIGITAL CONVERTERS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
MEASURING INSTRUMENTS
MULTIPLEXERS
RADIATION DETECTORS