Title :
Analog-to-analog conversion with high normal mode rejection ratio for power-line-frequency noise
Author :
Iliev, Luchezar M.
Author_Institution :
Sci. Instrum. Assoc., Bulgarian Acad. of Sci., Sofia, Bulgaria
fDate :
10/1/1991 12:00:00 AM
Abstract :
A simple method that ensures high normal mode rejection ratio (NMRR) for power-line-frequency noise in dual-slope integration and voltage-to-frequency (V-F)-based A/D converters is proposed. Experimental results for normal mode rejection ratios above 90 dB achieved in an instrument designed with implementation of this method are also reported
Keywords :
analogue-digital conversion; interference suppression; random noise; A/D converters; dual-slope integration; harmonics; interference suppression; normal mode rejection ratio; power-line-frequency noise; voltage to frequency convertor; Circuit noise; Filtration; Frequency synchronization; Instruments; Magnetic noise; Noise measurement; Phase measurement; Phase noise; Signal to noise ratio; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
