IEEE Trans Biomed Circuits Syst. 2010 Dec;4(6):372-8. doi: 10.1109/TBCAS.2010.2080676.
We report on a compact (0.02 mm(2) ) buffer for both voltage and current stimulation of electrogenic cells on a complementary metal-oxide semiconductor microelectrode array. In voltage mode, the circuit is a high-current class-AB voltage follower, based on a local common-mode feedback (LCMFB) amplifier. In current mode, the circuit is a current conveyor of type II, using the same LCMFB amplifier with cascode stages to increase the gain. The circuit shows good linearity in the 0.5-3.5 V input range and has extensively been used for stimulation of neuronal cultures.
我们报告了一种用于在互补金属氧化物半导体微电极阵列上对发电细胞进行电压和电流刺激的紧凑型（0.02mm(2)）缓冲器。在电压模式下，该电路是基于局部共模反馈（LCMFB）放大器的高电流 AB 类电压跟随器。在电流模式下，该电路是 II 型电流传送器，使用相同的 LCMFB 放大器和共源共栅级来提高增益。该电路在 0.5-3.5V 的输入范围内具有良好的线性度，并已广泛用于刺激神经元培养物。
