Title :
Ultra low noise 2.5 Gbit/s 3.3V transimpedance amplifier with automatic gain control
Author :
Gasmi, A. ; Wroblewski, B. ; Leblanc, R. ; Smith, D. ; Rocchi, M.
Author_Institution :
OMMIC, Limeil Brevannes, France
Abstract :
We present a high performance 2.5 Gb/s Transimpedance Amplifier (TIA) with the lowest input noise current ever reported at 3.3 V. Typical use is as a low noise preamplifier for lightwave receiver modules in optical fiber with an exceptionally good sensitivity and high gain. The circuit features a very small chip size, differential outputs, very low power consumption and built in Automatic Gain Control (AGC) to allow operation over a wide dynamic range. We have used an advanced enhancement-depletion mode PHEMT process to fabricate the device. This type of process offers the designer the flexibility and options required to obtain both a very good noise figure and low power consumption.
Keywords :
HEMT integrated circuits; automatic gain control; differential amplifiers; feedback amplifiers; field effect analogue integrated circuits; integrated circuit noise; low-power electronics; optical receivers; preamplifiers; wideband amplifiers; 2.5 Gbit/s; 3.3 V; LNA; automatic gain control; built-in AGC; differential outputs; enhancement-depletion mode PHEMT process; high performance amplifier; input noise current; lightwave receiver modules; low noise preamplifier; low power consumption; optical fiber communication; transimpedance amplifier; ultra low noise amplifier; wide dynamic range; Circuit noise; Energy consumption; Low-noise amplifiers; Optical amplifiers; Optical fiber amplifiers; Optical fibers; Optical noise; Optical receivers; Preamplifiers; Semiconductor optical amplifiers;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2001. 23rd Annual Technical Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-6663-8
DOI :
10.1109/GAAS.2001.964347
