| Title | A 1.5mA 470MHz CMOS Variable Gain Amplifier for Wideband Communication |
| Authors | Ye, Le Liao, Huailin Li, Chen Liu, Junhua Huang, Ru |
| Affiliation | Peking Univ, Inst Microelect, Beijing 100871, Peoples R China. |
| Issue Date | 2009 |
| Citation | 2009 ASIA PACIFIC CONFERENCE ON POSTGRADUATE RESEARCH IN MICROELECTRONICS AND ELECTRONICS (PRIMEASIA 2009).. |
| Abstract | A low power inductorless variable gain amplifier (VGA) for wideband communication systems is presented in this paper. It is a resistor feedback close-loop amplifier based on a proposed wideband operational amplifier. The operational amplifier is constructed by an artificially differential NIP complementary cascode amplifying stage for high gain, and a self-biased N/P complementary source follower for buffer stage to dramatically extend the bandwidth. The proposed VGA is implemented in the standard 0.18 mu m CMOS process, and achieves a 3-dB bandwidth of 470 MHz for 20 dB gain, and also achieves 16 dB NF. It consumes 1.5 mA current from 1.8 V supply voltage (excluding the output buffer for measurement), and the core occupies 0.3 mm(2) silicon area. |
| URI | http://hdl.handle.net/20.500.11897/153282 |
| DOI | 10.1109/PRIMEASIA.2009.5397419 |
| Indexed | EI CPCI-S(ISTP) |
| Appears in Collections: | 信息科学技术学院 |
