For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
A 3V-50MHz Analog CMOS Current-Mode High Frequency Filter with a Negative Resistance Load
Jai-Sop HYUN Kwang Sub YOON Jiseung NAM
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/25
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on VLSI Design and CAD Algorithms)
analog, current-mode, filter, negative resistance load,
Full Text: PDF>>
A 3V-50 MHz analog CMOS current-mode continuous-time active filter with a negative resistance load (NRL) is proposed. In order to design a current-mode current integrator, a modified basic current mirror with a NRL to increase the output resistance is employed. The inherent circuit structure of the designed NRL current integrator, which minimizes the internal circuit nodes and enhances the gain bandwidth product, is capable of making the filter operate at the high frequency. The third order Butterworth low pass filter utilizing the designed NRL current integrator is synthesized and simulated with a 1.5 µm CMOS n-well process. Simulation result shows the cutoff frequency of 50 MHz and power consumption of 2.4mW/pole with a 3V power supply.