Implantable Bio-Electronic Circuits and Systems

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Guest Editor
Department of Electrical and Computer Engineering, Stony Brook University (SUNY), Stony Brook, NY 11794, USA
Interests: integrated circuits and VLSI systems with applications to energy-efficient and secure computing; emerging integrated circuit and system technologies
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Special Issue Information

Dear Colleagues,

Implantable integrated circuits have long been utilized in a variety of biomedical applications, such as pacemakers and coclear implants. These devices have had a significant success and impact on human health care. Future implants will have the more ambitious goals of observing brain activity, decoding the extracted neural information, and, ultimately, restoring disabled functionality to the body. These next generation implantable ICs, which will interface with the nervous system, will be extremely helpful in better understanding neural pathways and the etiology of neurological diseases.

This special issue will focus on the design, testing, and application of bio-implantable ICs. Papers on IC design with application to brain recording and stimulation are particularly encouraged.

Dr. Emre Salman
Guest Editor


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Keywords

  • Implantable electronics
  • Wireless energy harvesting
  • Telemetry
  • Bio-compatability
  • Bioelectronics

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Published Papers (1 paper)

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Research

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Article
A 300-mV ΔΣ Modulator Using a Gain-Enhanced, Inverter-Based Amplifier for Medical Implant Devices
by Ali Fazli Yeknami
J. Low Power Electron. Appl. 2016, 6(1), 4; https://doi.org/10.3390/jlpea6010004 - 11 Mar 2016
Cited by 6 | Viewed by 11096
Abstract
An ultra-low-voltage low-power switched-capacitor (SC) delta-sigma (ΔΣ) modulator running at a supply voltage as low as 300 mV is presented for biomedical implant devices, e.g., cardiac pacemakers. To reduce the supply voltage, an inverter-based amplifier is used in the integrators, whose DC gain [...] Read more.
An ultra-low-voltage low-power switched-capacitor (SC) delta-sigma (ΔΣ) modulator running at a supply voltage as low as 300 mV is presented for biomedical implant devices, e.g., cardiac pacemakers. To reduce the supply voltage, an inverter-based amplifier is used in the integrators, whose DC gain and gain-bandwidth (GBW) are boosted by a simple current-mirror output stage. The full input-feedforward loop topology offers low integrators internal swing, supporting ultra-low-voltage operation. To demonstrate the concept, a second-order loop topology was chosen. The entire modulator operates reliably against process, voltage and temperature (PVT) variations from a 300 mV ± 10% supply voltage only, while the switches are driven by a charge pump clock boosting scheme. Designed in a 65 nm CMOS technology and clocked at 256 kHz, the simulation results show that the modulator can achieve a 64.4 dB signal-to-noise ratio (SNR) and a 60.7 dB signal-to-noise and distortion ratio (SNDR) over a 1.0 kHz signal bandwidth while consuming 0.85 μW of power. Full article
(This article belongs to the Special Issue Implantable Bio-Electronic Circuits and Systems)
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