Title :
A sigma-delta modulator as an A/D converter
Author :
Van De Plassche, Rudy J.
fDate :
7/1/1978 12:00:00 AM
Abstract :
A sigma-delta modulator system is discussed as an alternative to the dual-slope converter. A simple auto-zero circuit and cold switching of the gain setting can be obtained. The implementation of the analog system in the form of two bipolar IC´s offers an attractive application as a multi-input data acquisition system with a scanning capability. A combination with a D/A converter increases the resolution with a small Increase in conversion time. Hardly any accurate elements are required in this application if the dynamic element matching method is used in the D/A converter.
Keywords :
A/D converters; ADC; Analog-to-digital conversion (ADC); Bipolar analog integrated circuits; Bipolar integrated circuits, analog; Delta modulation; Technology oriented papers; Bipolar integrated circuits; Capacitors; Clocks; Computer aided analysis; Data acquisition; Delta-sigma modulation; Helium; Integrated circuit technology; Signal resolution; Switches;
Journal_Title :
Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TCS.1978.1084506
