中圖分類號： TN402
文獻標識碼： A
DOI：10.16157/j.issn.0258-7998.212366
中文引用格式： 黃俊，任方圓，胡歡，等. 大擺幅輸出的高速線性行波驅(qū)動器[J].電子技術(shù)應用，2022，48(7)：49-53，59.
英文引用格式： Huang Jun，Reng Fangyuan，Hu Huan，et al. A high-speed linear large-swing push-pull drivers[J]. Application of Electronic Technique，2022，48(7)：49-53，59.

A high-speed linear large-swing push-pull drivers

Abstract： A high-speed linear push-pull Mach-Zehnder Modulators(MZM) driver based on 0.13 μm SiGe BiCMOS process is proposed in this paper. The driver circuit is composed of 3 components, including the input stage, the output stage and direct current offset compensation(DCOC). A variable gain is achieved by placing variable resistances and variable capacitances in the emitter of the input stage, and the bandwidth is expanded by shunt inductive peaking technology. The output stage utilizes the breakdown voltage multiplier to attain a large-swing, and shunt inductive peaking technology is implemented to get a wide bandwidth. The DCOC builds a feedback between the output and the input of the driver, and utilizes a low pass filter to ensure loop stability. The simulation results demonstrate that the driver gain can be adjusted in a wide scale, and the phase margin, the operating rate and the voltage output swing are 82°, 100 Gb/s, 4 V, respectively, which can drive the push-pull MZM well.

Key words : push-pull MZM driver；shut inductive peaking；breakdown voltage multiplier；low pass filter；analog IC