Title :
Analysis and design of HBT Cherry-Hooper amplifiers with emitter-follower feedback for optical communications
Author :
Holdenried, Chris D. ; Haslett, James W. ; Lynch, Michael W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Alta., Canada
Abstract :
In this article, the large-signal, small-signal, and noise performance of the Cherry-Hooper amplifier with emitter-follower feedback are analyzed from a design perspective. A method for choosing the component values to obtain a low group delay distortion or Bessel transfer function is given. The design theory is illustrated with an implementation of the circuit in a 47-GHz SiGe process. The amplifier has 19.7-dB gain, 13.7-GHz bandwidth, and ±10-ps group delay distortion. The amplifier core consumes 34 mW from a -3.3-V supply.
Keywords :
Bessel functions; Ge-Si alloys; MMIC amplifiers; bipolar MIMIC; circuit feedback; heterojunction bipolar transistors; integrated circuit design; optical communication equipment; 13.7 GHz; 19.7 dB; 3.3 V; 34 mW; 47 GHz; Bessel transfer function; Cherry-Hooper amplifiers; HBT; SiGe; circuit design; emitter-follower feedback; group delay distortion; optical communications; Circuit noise; Delay; Heterojunction bipolar transistors; Optical amplifiers; Optical design; Optical feedback; Optical fiber communication; Optical noise; Performance analysis; Semiconductor optical amplifiers; Bessel response; Cherry–Hooper; SiGe HBT; emitter-follower feedback; optical communications;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2004.835819
