Meza Cuevas, Mario AlbertoMario AlbertoMeza CuevasAbu Saleh, LaitLaitAbu SalehSchröder, DietmarDietmarSchröderKrautschneider, WolfgangWolfgangKrautschneider2024-06-182024-06-182012BIODEVICES 2012 - Proceedings of the International Conference on Biomedical Electronics and Devices978-989-8425-91-1https://hdl.handle.net/11420/47897Electrical Neurostimulation has been effective in several medical therapies and also for restoring physiological, sensory and neuromuscular deficits. The rectangular pulse waveform has been used as a standard shape for neural stimulation. However, it has been shown that non-rectangular waveforms provide a more energy-efficient neural stimulation. An ASIC has been developed composed of a stimulator, capable of driving several current waveforms, and an analog channel for biosignal acquisition. The design is implemented in 130 nm / 1.2 V CMOS technology, requiring a silicon area of 0.696 mm 2. Experimental results show that the stimulator can generate analog signals from a digital input of 8 bits. The output stage can drive up to ±9.8 μA, with a DNL and INL of 0.47 and 1.05 LSB, respectively. Its SFDR is 50.2 dB. And it consumes a maximum of 128.12 μW. The analog input channel presents a power consumption of 140 μW, a gain of 52.2 dB, a bandwidth of 0.5 - 1130 Hz and 10 μV rms of noise.enCurrent steeringCurrent stimulationDacElectrical stimulationImplantNeurostimulationStimulation waveformTechnology::621: Applied Physics::621.3: Electrical Engineering, Electronic EngineeringConference PaperConference Paper