Title :
DC-to-15- and DC-to-30-GHz CMOS distributed transimpedance amplifiers
Author :
Liu, Ren-Chieh ; Wang, Huei
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Two broadband transimpedance amplifiers (TIAs) for optical applications were realized in a 0.18-μm CMOS technology. The first TIA, cascading two three-stage cascode distributed amplifiers, achieves a transimpedance gain of 58 bBΩ and a bandwidth of 15 GHz. The other, using a cascode distributed amplifier, achieves a transimpedance gain of 48 dBΩ and a bandwidth of 30 GHz. The TIAs utilize a distributed technique with cascode gain cells to enhance the gain and bandwidth performance. This technique provides TIAs with ultra-broad bandwidth.
Keywords :
CMOS analogue integrated circuits; MMIC amplifiers; distributed amplifiers; wideband amplifiers; 0 Hz to 15 GHz; 0 Hz to 30 GHz; 0.18 micron; 15 GHz; 30 GHz; CMOS TIA; broadband transimpedance amplifiers; cascaded amplifiers; cascode gain cells; distributed transimpedance amplifiers; multiple-stage cascode distributed amplifiers; optical applications; transimpedance gain; ultra-broad bandwidth TIA; Bandwidth; Broadband amplifiers; CMOS process; CMOS technology; Distributed amplifiers; Frequency; High speed optical techniques; Optical amplifiers; Optical receivers; Performance gain;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2004. Digest of Papers. 2004 IEEE
Print_ISBN :
0-7803-8333-8
DOI :
10.1109/RFIC.2004.1320676
