Title :
Analysis and design of CMOS match-impedance wide-band amplifiers
Author :
Lu, S.S. ; Chiang, M.C. ; Meng, C.C.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The realization of matched impedance wide-band amplifiers fabricated by the TSMC 0.35 μm CMOS process is reported. The technique of multiple-feedback loops was used to achieve terminal impedance matching and wide bandwidth. The experimental results showed that a small signal gain of 12.7 dB and a 3-dB bandwidth of 1.7 GHz with in-band input/output return loss less than 10 dB were obtained. The intrinsic over-damped characteristic of this amplifier was shown and source capacitive peaking was used to remedy the problem. The trade-off between input impedance matching and bandwidth was also explored
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; UHF integrated circuits; feedback amplifiers; impedance matching; integrated circuit design; wideband amplifiers; 0.35 micron; 1.7 GHz; 10 dB; 12.7 dB; 3-dB bandwidth; CMOS matched-impedance wide-band amplifiers; TSMC 0.35 μm CMOS process; in-band input/output return loss; intrinsic over-damped characteristic; multiple-feedback loops; small signal gain; source capacitive peaking; terminal impedance matching; transimpedance amplifier; wide bandwidth; Bandwidth; Broadband amplifiers; CMOS process; CMOS technology; Circuits; Feedback loop; Heterojunction bipolar transistors; Impedance matching; Output feedback; Resistors;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985643
