A 3 V-50 MHz analog CMOS current-mode high frequency filter with a negative resistance load

Author

Hyun, Jai-Sop ; Yoon, Kwang Sub

Author_Institution

Dept. of Electron. Eng., Inha Univ., Inchon, South Korea

fYear

1996

Firstpage

260

Lastpage

263

Abstract

A low voltage analog CMOS current-mode continuous-time high frequency filter with a negative resistance load (NRL) is proposed. To design a current integrator, we use a modified simple current mirror with a NRL to increase the output resistance. The current integrator is designed to have the frequency behavior enhancement and operate in low voltage by employing a simple mirror structure and diode connected input transistor. The third order Butterworth low pass filter using a current integrator is synthesized and simulated with a 1.5 μm n-well process. Simulation result shows cutoff frequency of 50 MHz and power consumption of 2.4 mW/pole with a 3 V power supply

Keywords

Butterworth filters; CMOS analogue integrated circuits; active networks; continuous time filters; integrating circuits; low-pass filters; negative resistance devices; 1.5 micron; 3 V; 50 MHz; analog CMOS current-mode high frequency filter; continuous-time filter; current integrator; current mirror; cutoff frequency; diode connected input transistor; frequency behavior enhancement; mirror structure; n-well process; negative resistance load; output resistance; power consumption; third order Butterworth low pass filter; Bandwidth; CMOS process; Circuits; Frequency; Low pass filters; Low voltage; MOSFETs; Mirrors; Power supplies; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI, 1996. Proceedings., Sixth Great Lakes Symposium on

Conference_Location

Ames, IA

ISSN

1066-1395

Print_ISBN

0-8186-7502-0

Type

conf

DOI

10.1109/GLSV.1996.497630

Filename

497630