Abstract:
A new approach providing the active-RC integrator with programmable time constant is proposed. An inherently linear current division network (CDN) preserving the high lin...Show MoreMetadata
Abstract:
A new approach providing the active-RC integrator with programmable time constant is proposed. An inherently linear current division network (CDN) preserving the high linearity property of the active RC technique while providing wide tuning characteristics is adopted. The proposed integrator provides wider tuning range, and higher tuning resolution accompanied with better linearity and/or reduced area than what could be obtained from capacitor and resistor banks. The proposed integrator uses two opamps per integrator just like its MOSFET-C counterpart but it inherently exhibits better linearity and wider tuning range particularly for low voltage supply. A reconfigurable filter exhibiting complex bandpass and normal lowpass responses is realized. Experimental results obtained from a 4th-order filter fabricated in a standard 0.18 μm CMOS process are given. The complex and lowpass filters achieve in-band spurious-free dynamic ranges (SFDRs) of about 70 dB and 71 dB for bandwidths of 1 MHz and 5.5 MHz, respectively.
Published in: IEEE Transactions on Circuits and Systems I: Regular Papers ( Volume: 58, Issue: 11, November 2011)
![Author image of Hussain A. Alzaher](/mediastore/IEEE/content/freeimages/8919/6059687/5941013/5941013-photo-1-source-small.gif)
Electrical Engineering Department, KFUPM, Dhahran, Saudi Arabia
Hussain A. Alzaher received the B.S. and M.S. degrees (with honors) in electrical engineering from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, in 1994 and 1997, respectively, and the Ph.D. degree from Ohio State University, Columbus, in 2001.
Since 1994, he has been with KFUPM as a Faculty Member in the Electrical Engineering Fepartment. His research interests include applications of elec...Show More
Hussain A. Alzaher received the B.S. and M.S. degrees (with honors) in electrical engineering from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, in 1994 and 1997, respectively, and the Ph.D. degree from Ohio State University, Columbus, in 2001.
Since 1994, he has been with KFUPM as a Faculty Member in the Electrical Engineering Fepartment. His research interests include applications of elec...View more
![Author image of Hussain A. Alzaher](/mediastore/IEEE/content/freeimages/8919/6059687/5941013/5941013-photo-1-source-small.gif)
Electrical Engineering Department, KFUPM, Dhahran, Saudi Arabia
Hussain A. Alzaher received the B.S. and M.S. degrees (with honors) in electrical engineering from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, in 1994 and 1997, respectively, and the Ph.D. degree from Ohio State University, Columbus, in 2001.
Since 1994, he has been with KFUPM as a Faculty Member in the Electrical Engineering Fepartment. His research interests include applications of electronic circuit techniques for wireless communications: multistandard mobile phones, Bluetooth, WLAN, WiMAX, and digital video broadcasting—handheld (DVB-H). His recent interests include design of very-low frequency filters for biomedical instrumentation systems. He is the author and coauthor of more than 50 journal papers.
Dr. Alzaher is the recipient of the 2003 Showman award for the best Young Arab Researchers, Engineering Science.
Hussain A. Alzaher received the B.S. and M.S. degrees (with honors) in electrical engineering from King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia, in 1994 and 1997, respectively, and the Ph.D. degree from Ohio State University, Columbus, in 2001.
Since 1994, he has been with KFUPM as a Faculty Member in the Electrical Engineering Fepartment. His research interests include applications of electronic circuit techniques for wireless communications: multistandard mobile phones, Bluetooth, WLAN, WiMAX, and digital video broadcasting—handheld (DVB-H). His recent interests include design of very-low frequency filters for biomedical instrumentation systems. He is the author and coauthor of more than 50 journal papers.
Dr. Alzaher is the recipient of the 2003 Showman award for the best Young Arab Researchers, Engineering Science.View more