Citation: |
Jiao Shilong, Ye Yutang, Chen Tangsheng, Feng Ou, Jiang Youquan, Fan Chao, Li Fuxiao. 10Gb/s GaAs PHEMT Current Mode TransimpedancePreamplifier for Optical Receiver[J]. Journal of Semiconductors, 2007, 28(1): 24-30.
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Jiao S L, Ye Y T, Chen T S, Feng O, Jiang Y Q, Fan C, Li F X. 10Gb/s GaAs PHEMT Current Mode TransimpedancePreamplifier for Optical Receiver[J]. Chin. J. Semicond., 2007, 28(1): 24.
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10Gb/s GaAs PHEMT Current Mode TransimpedancePreamplifier for Optical Receiver
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Abstract
A single power supply common-gate (CG) current mode transimpedance preamplifier (TIA) is developed with a 0.5μm GaAs PHEMT process.The amplifier has a measured -3dB bandwidth of 7.5GHz and a transimpedance gain of 45dBΩ.Both the input and output voltage standing wave ratios (VSWR) are less than 2 within the bandwidth.The equivalent input noise current spectral density varies from 14.3 to 22pA/Hz,with an average value of 17.2pA/Hz.Having a timing jitter of 14ps and eye amplitude of about 138mV,the measured output eye diagram for 10Gb/s NRZ pseudorandom binary sequence (PRBS) is clear and satisfactory.-
Keywords:
- GaAs PHEMT,
- current mode,
- preamplifier,
- noise figure,
- eye diagram
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References
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Proportional views