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10Gb/s宽动态范围CMOS跨阻前置放大器 被引量:2

10Gb/s Wide Dynamic Range CMOS Transimpedance Preamplifier
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摘要 采用UMC 0.13μm CMOS工艺,实现了一种应用于SDH系统STM-64(10Gb/s)光接收机的前置放大器.该前置放大器采用具有低输入阻抗特点的RGC(Regulated Cascode)作为输入级.同时,采用消直流技术来扩大输入信号的动态范围.在片测试结果表明:双端输出时中频跨阻增益约为58.57dBΩ(848Ω),-3dB带宽为12GHz,平均等效输入噪声电流谱密度约为24.7pA/(Hz,1.2V单电压源下功耗为21.84mW,其中8mW来自输出缓冲.输入电压信号动态范围36.5dB(12mV~800mV).包括焊盘在内的芯片面积仅为0.462×0.566mm2. A preamplifier for the STM-64 (10Gb/s)optical receiver in SDH system has been realized in UMC 0.13μm CMOS process. The RGC (Regulated Cascode) configuration is employed in the preamplifier because of its low input resistance. Meanwhile, in order to enlarge the dynamic range of the input signal, the DC-Cancellafion technology is introduced into the circuit. The Measured results with the on-wafer probing station show that the preamplifier has differential transimpedance gain of 58.57dBΩ (848Ω), - 3dB bandwidth of 12GHz, the average input referred noise current spectral density of 24.7pA/(√Hz and the DC power dissipation of 21.84mW from a single 1.2V supply, including 8mW from output buffer. Dynamic range of the input voltage signal is 36.5dB( 12mV - 800mV). The die area including pads is only 0.462 × 0.566mm^2.
作者 刘全 冯军
出处 《电子学报》 EI CAS CSCD 北大核心 2010年第5期1187-1191,共5页 Acta Electronica Sinica
基金 国家863高技术研究发展计划(No.2006AA01Z284)
关键词 光接收机 前置放大器 跨阻放大器 自调整的共源共栅 消直流 宽动态范围 0.13μm CMOS optical receiver preamplifier u'ansimpedance amplifier regulated cascode DC-cancellation technology wide dynamic range 0.13μm CMOS
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参考文献11

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