真差分超导片内输出放大器
True Differential Superconducting On-Chip Output Amplifier
摘要：
真差分超导体片上放大器具有相对于芯片接地浮动的互补输出。这改善了信号完整性和与接收半导体级的兼容性。源端接和非源端接设计均能产生4 mV的电压，并能抑制封装中的大共模干扰。输出偏置的实测裕度为$\pm$ 8.5%，交流时钟幅度的实测裕度为$\pm$ 28%。在2.9- 10 Gb/s的速率下得到波形和眼图。直接测量的误码率在2.9Gb/s时优于1 e-12的分辨率极限，在10 Gb/s时优于1 e-9。
英文摘要：
The true-differential superconductor on-chip amplifier has complementary outputs that float with respect to chip ground. This improves signal integrity and compatibility with the receiving semiconductor stage. Both source-terminated and non-source-terminated designs producing 4mV demonstrated rejection of a large common mode interference in the package. Measured margins are $\pm$8.5% on the output bias, and $\pm$28% on AC clock amplitude. Waveforms and eye diagrams are taken at 2.9-10Gb/s. Direct measurement of bit-error rates are better than the resolution limit of 1e-12 at 2.9Gb/s, and better than 1e-9 at 10Gb/s.
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