Title :
A 1.8-V supply, 33-MHz cut-off frequency, gm-C filter in 0.18-μm CMOS technology
Author :
Tajalli, Armin ; Atarodi, Mojtaba
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
A single 1.8 V supply, lowpass, sixth-order elliptic gm-C filter based on new biquadratic architecture in 0.18 μm CMOS process is presented. For high Q biquadratic stages, needed in this filter, Q enhancement techniques are used. Simple architecture of the proposed biquadratics filter makes it useful for high frequency applications with proper dynamic range. The cut off frequency of this filter is 33 MHz. It has a THD of -40 dB for 0.2 Vpp, 10 MHz signal and OIP3 of 4 Vpp. The filter consumes 300 μA and has 1.1mVrms total noise.
Keywords :
CMOS integrated circuits; biquadratic filters; low-pass filters; 0.18 micron; 0.2 V; 1.1 mV; 1.8 V; 10 MHz; 300E-6 A; 33 MHz; 4 V; 40 dB; CMOS technology; Q enhancement technique; biquadratic architecture; cut-off frequency; gm-C filter; CMOS technology; Charge pumps; Circuits; Cutoff frequency; Dynamic range; Energy consumption; Filters; Low voltage; MOSFETs; Transconductors;
Conference_Titel :
Microelectronics, The 14th International Conference on 2002 - ICM
Print_ISBN :
0-7803-7573-4
DOI :
10.1109/ICM-02.2002.1161494
