Title :
A Field Programmable Analog Array using floating gates for high resolution tuning
Author :
Henrici, Fabian ; Becker, Jurgen ; Trendelenburg, Stanis ; DeDorigo, Daniel ; Ortmanns, Maurits ; Manoli, Yiannos
Author_Institution :
Dept. of Microsyst. Eng. (IMTEK), Univ. of Freiburg, Freiburg, Germany
Abstract :
This paper presents a Gm-C based field programmable analog array implemented in a 0.13 mum CMOS technology. It combines coarse adjustability via OTA and capacitor arrays, with fine tunability through floating gate bias current sources. It can instantiate almost arbitrarily complex continuous-time filters in a frequency range from 660 kHz to 135 MHz. Measurements show that filter coefficients can be tuned in steps of at least 1.5%, depending on filter type and bandwidth.
Keywords :
CMOS analogue integrated circuits; circuit tuning; continuous time filters; field programmable analogue arrays; operational amplifiers; CMOS technology; OTA; bandwidth; bias current sources; capacitor arrays; coarse adjustability; continuous-time filters; field programmable analog array; filter coefficients; filter type; floating gates; frequency 660 kHz to 135 MHz; high resolution tuning; Application specific integrated circuits; Bandwidth; Capacitors; Field programmable analog arrays; Field programmable gate arrays; Filters; Microelectronics; Parasitic capacitance; Routing; Switches;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5117736
