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2.5 Gbit/s Transimpedance Amplifier Using Noise Cancelling for Optical Receivers

مؤلف البحث
M. Atef and H. Zimmermann
المشارك في البحث
سنة البحث
2012
مجلة البحث
IEEE International Symposium on Circuits and Systems (ISCAS2012),Seoul, Korea
تصنيف البحث
3
صفحات البحث
pp.1740 - 1743
ملخص البحث

This work presents the design and performance of a 2.5Gbit/s transimpedance amplifier (TIA) for optical receivers implemented in a 40nm CMOS technology. The TIA is based on an inverting voltage amplifier with a shunt feedback resistor using noise cancelling technique to reduce the input noise. The TIA is followed by two stages of differential limiting amplifiers and the last stage is a 50Ω differential output driver to provide an interface to the measurement setup. The TIA shows a post layout simulated optical sensitivity of −25dBm for a BER= 10−12 and an optical power dynamic range of 25dB. The complete chip achieves a transimpedance gain of 79.5dBΩ, 1.5GHz bandwidth and occupies a chip area of 0.16mm2. The power consumption of the TIA is only 4.5mW and the complete chip dissipates 15mW for a 1.1V single supply voltage.