A low power 12-bit ADC for nuclear instrumentation

Conference · Thu Oct 01 04:00:00 EDT 1992

OSTI ID:6944979

Adachi, R; Landis, D; Madden, N ^[1]; Silver, E; LeGros, M ^[2]

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1. Lawrence Berkeley Lab., CA (United States)
2. Lawrence Livermore National Lab., CA (United States)

A low power, successive approximation, analog-to-digital converter (ADC) for low rate, low cost, battery powered applications is described. The ADC is based on a commercial 50 mW successive approximation CMOS device (CS5102). An on-chip self-calibration circuit reduces the inherent differential nonlinearity to 7%. A further reduction of the differential nonlinearity to 0.5% is attained with a four bit Gatti function. The Gatti function is distributed to minimize battery power consumption. All analog functions reside with the ADC while the noisy digital functions reside in the personal computer based histogramming memory. Fiber optic cables carry afl digital information between the ADC and the personal computer based histogramming memory.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: NASA; National Aeronautics and Space Administration, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6944979
• Report Number(s): LBL-32278; CONF-921005--12; ON: DE93004690
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000 -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANALOG-TO-DIGITAL CONVERTERS
CALIBRATION
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL SYSTEMS
DESIGN
DIGITAL COMPUTERS
ELECTRONIC EQUIPMENT
EQUIPMENT
FIBER OPTICS
GAMMA SPECTROMETERS
MEASURING INSTRUMENTS
MICROCOMPUTERS
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
PERSONAL COMPUTERS
SPECTROMETERS