This paper proposes an inductorless fully differential transimpedance amplifier (TIA) with a single-ended photo current to offer high bandwidth for applications of beyond 10 Gb/s optical communications. The presented TIA provides a much lower input impedance by modifying the cross-coupled regulated cascode (CC-RGC) configuration. The introduced method is able to enhance the bandwidth in the presence of wide range of input photodiode capacitance from small to large values, with a negligible increase in the peaking of frequency response. The proposed circuit is designed and simulated using the TSMC 130-nm CMOS technology to validate the proposed technique. The post-layout simulation results show that the TIA delivers a transimpedance gain of 46.5 dB $\mathrm{\Omega }$, a bandwidth of 8.8 GHz, and an input-referred current noise of 33 pA/√Hz. The circuit occupies an active area of 0.004 mm² and consumes 9.8 mW from a 1.3 V supply. Furthermore, the robustness of the proposed TIA is verified by means of the Monte Carlo simulations.

中文翻译：

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用于光通信的具有 1 pF 输入电容的 12.5 Gb/s 0.13-μm CMOS 无电感跨阻放大器

本文提出了一种具有单端光电流的无电感全差分互阻放大器 (TIA)，可为超过 10 Gb/s 的光通信应用提供高带宽。所呈现的 TIA 通过修改交叉耦合稳压级联 (CC-RGC) 配置来提供低得多的输入阻抗。引入的方法能够在输入光电二极管电容范围从小到大的情况下提高带宽，而频率响应峰值的增加可以忽略不计。所提出的电路是使用 TSMC 130 纳米 CMOS 技术设计和仿真的，以验证所提出的技术。布局后仿真结果表明，TIA 提供了 46.5 dB 的互阻增益 $\mathrm{欧姆}$、8.8 GHz 的带宽和 33 pA/√Hz 的输入参考电流噪声。^{该电路占用 0.004 mm 2}的有效面积，在 1.3 V 电源下功耗为 9.8 mW。此外，所提出的 TIA 的稳健性通过蒙特卡罗模拟得到验证。