Title :
A high-speed low-power spectrum accumulator using dual-port RAM and state machine control
Author :
Lockhart, Walter L. ; Greene, Joseph H. ; Young, David T.
Author_Institution :
Southwest Res. Inst., San Antonio, TX, USA
fDate :
8/1/1989 12:00:00 AM
Abstract :
A high-speed spectrum accumulator circuit intended for use with a time-of-flight mass spectrometer is described. Advantages of this design include high-speed data acquisition (>400 kHz periodic, 2.5-μs pulse-pair resolution), high resolution (256 channels, expandible to 1024), low power (~2 W), and circuit simplicity. This performance is achieved with an optimum combination of an 8-b flash analog-to-digital converter, dual-port RAM, and erasable programmable logic device state machine controller
Keywords :
analogue-digital conversion; data acquisition; mass spectrometer components and accessories; random-access storage; spectral analysers; time of flight mass spectrometers; 2 W; ADC; data acquisition; dual-port RAM; erasable programmable logic device; flash analog-to-digital converter; high-speed low-power spectrum accumulator; state machine control; time-of-flight mass spectrometer; Analog-digital conversion; Data acquisition; Electrons; Instruments; Machine control; Mass spectroscopy; Optical scattering; Programmable logic devices; Pulse circuits; Radiation detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
