中文摘要：

采用CSMC 0．6μm CMOS工艺设计实现了低压、低功耗的多级运算跨导放大器。本设计引入了无密勒电容的前馈补偿技术，规避了芯片集成电容以降低噪声并减小成本，获得了高达630MHz的单位增益带宽以及79度裕度的高稳定性。电路工作于2．5V±1．25V），功耗16mW，开环直流增益85dB，3dB带宽116kHz，可基本满足神经信号检测的应用要求。

英文摘要：

A low-voltage low-power operational transconductance amplifier has been realized in CSMC＇s 0.6μm CMOS technology. To decrease the noise, the power consumption and the chip size, a robust feed-forward compensation scheme was introduced to eliminate the on-chip Miller capacitance. The amplifier had a gain-bandwidth of 630MHz and a phase margin of 79°. The amplifier could operate under 2.5V（±1.25V） with a power consumption of 16mW, achieving a DC gain of 85dB and a 3dB-bandwidth of 116 kHz. On-wafer test showed that the amplifier had the potential of applying in neural signal recording.