Title :
A low power 12-bit ADC for nuclear instrumentation
Author :
Adachi, R. ; Landis, D. ; Madden, N. ; Silver, E. ; LeGros, M.
Author_Institution :
Lawrence Berkeley Lab., CA, USA
Abstract :
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 all digital information between the ADC and this memory
Keywords :
CMOS integrated circuits; analogue-digital conversion; calibration; microcomputer applications; nuclear electronics; physics computing; 50 mW; CMOS device; CS5102; analog functions; analog-to-digital converter; battery power consumption; battery-powered applications; fiber-optic cables; four-bit Gatti function; inherent differential nonlinearity; low power 12-bit ADC; low-cost; low-rate; noisy digital functions; nuclear instrumentation; on-chip self-calibration circuit; personal-computer-based histogramming memory; successive-approximation; Batteries; Circuit noise; Instruments; Laboratories; Microcomputers; Optical fiber cables; Optical fibers; Optical noise; Pulsed power supplies; Working environment noise;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301257
