Title :
A novel frequency based current-to-digital converter with programmable dynamic range
Author :
Yu, Xiaoyan ; Farquhar, Ethan ; Blalock, Benjamin J.
Author_Institution :
Min H. Kao Dept. of Electr. Eng. & Comput. Sci., Univ. of Tennessee, Knoxville, TN, USA
Abstract :
This work describes a novel frequency based current to digital converter, which is fully realizable on a single chip. This project affords an extremely low power converter technology that is also very space efficient. The converter is completely asynchronous which yields ultra-low power during standby operation (approximately 5 nW). The input current range is programmable, and the minimum detectable current could reach the range of picoampere or even lower. System structure, operational principle, and chip test results are given in this paper.
Keywords :
analogue-digital conversion; low-power electronics; power convertors; frequency based current-to-digital converter; low power converter technology; programmable dynamic range; Counting circuits; Current measurement; Delay lines; Dynamic range; Fires; Frequency conversion; Neurons; Programmable logic arrays; Semiconductor device measurement; Voltage;
Conference_Titel :
Circuits and Systems (MWSCAS), 2010 53rd IEEE International Midwest Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-7771-5
DOI :
10.1109/MWSCAS.2010.5548667
