Title :
A Gray-code MOS current-mode analog-to-digital converter design
Author :
Pouliquen, Philippe O. ; Boahen, Kwabena A. ; Andreou, Andreas G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
A novel analog-to-digital converter (ADC) designed to operate without any clocking circuitry, such as a sample-and-hold, is described. The design presented is a first-generation Gray-code algorithmic converter (GA-ADC) with a continuous analog transfer function. The continuous transfer function results in a digital output that is Gray-coded. Performance degrades gracefully as the input exceeds the ADC´s maximum sampling rate, enabling one to use a single ADC for a large variety of applications. In addition, the converter has other useful features such as low power dissipation, and high area efficiency
Keywords :
CMOS integrated circuits; analogue-digital conversion; coding errors; A/D converter; Gray-code; MOS; algorithmic converter; continuous analog transfer function; current-mode; high area efficiency; low power dissipation; n-well CMOS process; performance degradation; Algorithm design and analysis; Analog-digital conversion; Circuits; Clocks; Digital control; Frequency; Power dissipation; Sampling methods; Signal resolution; Transfer functions;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176785
