用于无线双相皮质内微刺激的超小型化CMOS电流驱动器

2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST) Pub Date : 2022-06-08 DOI:10.1109/mocast54814.2022.9837681

Gian Luca Barbruni, P. Ros, D. Demarchi, S. Carrara, D. Ghezzi

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引用次数: 2

摘要

这项工作展示了一种用于双相皮质内微刺激的超小型和超低功耗CMOS电流驱动器。CMOS驱动器由基于泄漏的电压-电流转换器和提供双相电荷平衡电流刺激的h桥电路组成。对该电路进行了仿真、制作和测试。电流驱动器功耗为1.87µW，电源电压为1.8 V，硅面积为15×12.4µm2。驱动器在23−92µA的电流范围内线性工作。

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Ultra-Miniaturised CMOS Current Driver for Wireless Biphasic Intracortical Microstimulation

This work shows an ultra-miniaturised and ultralow-power CMOS current driver for biphasic intracortical microstimulation. The CMOS driver is composed of a leakage-based voltage-to-current converter and an H-bridge circuit providing biphasic charge-balanced current stimulation. The circuit has been simulated, fabricated and tested. The current driver consumes 1.87 µW with a supply voltage of 1.8 V, and it occupies a silicon area of 15×12.4 µm2. The driver works in linearity in the current range between 23−92 µA.

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2022 11th International Conference on Modern Circuits and Systems Technologies (MOCAST)

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