Title :
A Low Noise, Wide Dynamic Range Pre-amplifier with Automatic Gain Control for SDH/SONET (STM4/OC12) in 0.6 μm CMOS Process
Author :
Han, Peng ; Wang, Zhi-Gong
Author_Institution :
Southeast Univ., Nanjing
Abstract :
A low noise, wide dynamic range pre-amplifier for SDH/SONET (STM4/OC12) in 0.6 μm standard CMOS process is presented. Low noise is achieved by using transimpedance amplifier of multi-stage amplification and low drop-out regulator. Wide dynamic range is achieved by using automatic gain control and input DC cancellation. The amplifier exhibits differential transimpedance gain of 103.4 dBΩ (147.91 kΩ), -3 dB bandwidth of 446 MHz, and equivalent input noise current density of 2.57 pA/√Hz . The optical overload, the power supply rejection ratio and the power consumption are +3 dBm, larger than 44 dB from DC to 30 MHz, 287 mW, respectively.
Keywords :
CMOS integrated circuits; SONET; automatic gain control; low noise amplifiers; synchronous digital hierarchy; CMOS process; SDH/SONET; automatic gain control; differential transimpedance gain; input DC cancellation; low drop-out regulator; low noise wide dynamic range pre-amplifier; multi-stage amplification; size 0.6 μm; transimpedance amplifier; CMOS process; Dynamic range; Gain control; Low-noise amplifiers; Noise cancellation; Optical amplifiers; Optical noise; Regulators; SONET; Synchronous digital hierarchy;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1048-7
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381395
