Title :
Self-calibrating linear OTAs exemplified in a current mode ADC
Author :
Wunderlich, R. ; Frieg, R. ; Dollberg, A. ; Schumacher, K.
Author_Institution :
Dept. of Microelectron., Dortmund Univ., Germany
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper summarizes different approaches for linear operational transconductance amplifiers (linear OTAs). A powerful technique for offset cancellation and transconductance calibration of linear OTAs is shown. The almost ideal linear OTAs can be used in different applications. We introduce the usage in current mode ADCs. Statistical simulations show that the ADC accomplishes 10 bits in a 0.35 μm CMOS technology at a single supply voltage of 1.8 V
Keywords :
CMOS analogue integrated circuits; analogue-digital conversion; calibration; differential amplifiers; low-power electronics; operational amplifiers; 0.35 micron; 1.8 V; 10 bit; CMOS technology; adaptively biased source-coupled pairs; analog-to-digital conversion; cross-coupled differential pairs; current mode ADC; linear operational transconductance amplifiers; low power operation; matching; offset cancellation; self-calibrating linear OTAs; stabilized input common-mode; transconductance calibration; unsaturated differential pair; Analog-digital conversion; Artificial intelligence; CMOS technology; Calibration; Circuits; Filters; Linearity; Microelectronics; Threshold voltage; Transconductance;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957537
