Title :
A Power Optimized Base-Band Circuitry for the Low-IF Receivers
Author :
Zanbaghi, Ramin ; Atarodi, S. Mojtaba ; Tajalli, Armin
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran
Abstract :
A fully integrated CMOS base-band part of a low-IF WPAN receiver is presented, which consists of an active complex filter, an automatic gain control unit, and a 10-bit pipeline ADC. The highlights of the receiver include a low-power active complex filter with a new gm -C filter structure and a high-resolution, low power pipeline ADC using averaging and double sampling techniques. The chip was designed using 0.18-mum standard CMOS process. The filter provides more than 55-dB image rejection ratio and IM3 of -50-dB for 0.2-Vpp input signal. The converter has a peak SFDR of 61 dB, maximum DNL of 0.5 LSB, and INL of 0.9 LSB. The whole circuit draws 4-mA from a 1.8-V power supply
Keywords :
CMOS analogue integrated circuits; active filters; analogue-digital conversion; automatic gain control; integrated circuit design; low-power electronics; personal area networks; radio receivers; 0.18 micron; 1.8 V; 10 bit; 4 mA; CMOS process; active complex filter; analog CMOS circuits; automatic gain control unit; fully integrated CMOS base-band part; gm-C filter structure; low-IF WPAN receiver; low-IF receivers; pipeline analog-to-digital converter; power optimized base-band circuitry; wireless personal area network; Active filters; Bandwidth; CMOS process; CMOS technology; Circuits; Frequency; Gain control; Pipelines; Signal to noise ratio; Wireless networks; ADC; Analog CMOS circuits; WPAN; base-band; complex filter;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.377919
