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A CMOS BD-BCI Incorporating Stimulation with Dual-Mode Charge Balancing and Time-Domain Pipelined Recording

https://doi.org/10.1109/CICC57935.2023.10121211

Pu, Haoran; Danesh, Ahmad Reza; Safiallah, Mahyar; Lim, Jeffrey; Do, An H.; Nenadic, Zoran; Heydari, Payam (April 2023, IEEE)

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A CMOS Dual-Mode Brain-Computer Interface Chipset With 2-mV Precision Time-Based Charge Balancing and Stimulation-Side Artifact Suppression

https://doi.org/10.1109/JSSC.2021.3108578

Pu, Haoran; Malekzadeh-Arasteh, Omid; Danesh, Ahmad Reza; Nenadic, Zoran; Do, An H.; Heydari, Payam (July 2022, IEEE Journal of Solid-State Circuits)

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A Comprehensive Analysis of Charge-Pump-Based Multi-Stage Multi-Output DC-DC Converters

https://doi.org/10.1109/ISCAS51556.2021.9401129

Danesh, Ahmad Reza; Heydari, Payam (May 2021, IEEE International Symposium on Circuits and Systems)
null (Ed.)
This paper presents an analytical model for calculating the output voltage and the power efficiency of multi-stage multi-output (MSMO) DC-DC converters (DDC) that use charge pump cells for boosting the voltage. Various cases such as multi-output current consumption and its effects on the output voltage and the power efficiency are studied. Based on the model, a tapered design approach is proposed that can bolster the power efficiency and lower the output voltage drop of MSMO DDCs. Moreover, a charge-pump-based DDC is introduced and designed to verify the proposed model. Simulation results using a standard high-voltage 180-nm CMOS technology affirms the accuracy of the presented model.
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An Analysis of CMRR Degradation in Multi-Channel Biosignal Recording Systems

https://doi.org/10.1109/TCSII.2020.3011180

Malekzadeh-Arasteh, Omid; Danesh, Ahmad Reza; Do, An H.; Nenadic, Zoran; Heydari, Payam (January 2021, IEEE Transactions on Circuits and Systems II: Express Briefs)
null (Ed.)
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A 40V Voltage-Compliance 12.75mA Maximum-Current Multipolar Neural Stimulator Using Time-Based Charge Balancing Technique Achieving 2mV Precision

https://doi.org/10.1109/CICC51472.2021.9431428

Pu, Haoran; Danesh, Ahmad Reza; Malekzadeh-Arasteh, Omid; Sohn, Won Joon; Do, An H.; Nenadic, Zoran; Heydari, Payam (April 2021, IEEE Custom Integrated Circuits Conference)
null (Ed.)
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