Title :
Ratio-independent current mode algorithmic analog-to-digital converters
Author :
Nairn, David G. ; Salama, C. Andre T
Author_Institution :
Dept. of Electr. Eng., Toronto Univ., Ont., Canada
Abstract :
A new ratio-independent algorithmic analog-to-digital converter, using current instead of voltage, is described. The proposed ADC (analog-to-digital converter) does not require well-matched components or high-gain amplifiers and can be made insensitive to the amplifier´s offset voltage. A prototype of the proposed circuit was designed and fabricated using a 3-μm CMOS process. The circuit occupies less than 0.2 mm2, displays a 10-b resolution with a 25-kHz sampling rate, and operates from a single 5-V supply
Keywords :
CMOS integrated circuits; analogue-digital conversion; 25 kHz; 3 micron; 5 V; CMOS process; analog-to-digital converters; current mode; monolithic IC; ratio-independent algorithmic ADC; single 5-V supply; Algorithm design and analysis; Analog-digital conversion; CMOS process; CMOS technology; Circuits; Sampling methods; Signal processing algorithms; Signal resolution; Very large scale integration; Voltage;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100338
