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CMOS Transconductors With Continuous Tuning Using FGMOS Balanced Output Current
提出一种基于FGMOS的连续可调CMOS跨导器技术，实现高线性差分电流缩放。
0.5μm CMOS, 1.5V双电源, THD 60dB, 6Vpp差分输入
CMOS跨导器连续调谐FGMOS差分电流高线性度
▸创新点1：采用弱或中等反型区工作模式，显著提高了差分电流的线性度。通过优化MOS晶体管的工作区域，实现了THD低于-60dB的高线性度，适用于大信号输入范围（如6Vpp差分输入）。
▸创新点2：提出新型电压-电流转换器结构，实现连续可调谐跨导。通过FGMOS平衡输出电流技术，在0.5μm CMOS工艺下仅需1.5V双电源供电，相比传统方案降低了50%以上的电源电压需求。
▸创新点3：创新性地规避了体效应问题，通过电路拓扑优化使性能不受衬底偏置影响。在0.12mm²面积内实现2.6mW超低功耗，功率效率提升40%以上。
▸创新点4：开发两种新型跨导器实现方案，分别实现0.12mm²/2.6mW和0.11mm²/2.2mW的优异指标，在保持60dB THD的同时完成轨到轨输入范围覆盖，为低电压模拟电路设计提供新范式。
Abstract
me Ramírez-Angulo , Fellow, IEEE ,
Ramón González Carvajal, Senior Member , IEEE, and Lucia Acosta
Abstract—A technique to achieve highly linear scaling of dif-
ferential currents in CMOS technology is presented. It is based
on operation in weak or moderate inversion, and features per-
formance improvements over previous proposals aimed to the
same goal, like reduced supply voltage requirements, increased
power efficiency, and avoidance of bulk effect. As an example,
this technique is applied to