• A fully differential capacitively-coupled high CMRR low-power chopper amplifier for EEG dry electrodes 

      Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Ytterdal, Trond (Journal article; Peer reviewed, 2020)
      The use of dry electrodes is increasing rapidly. Since their impedance is high, there is a high impedance node at the connecting node between the electrode and amplifier. This leads to absorb powerline signal and high CMRR ...
    • A Fully Tunable Low-power Low-noise and High Swing EMG Amplifier with 8.26 PEF 

      Naderi, Kebria; Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Heidari, Ali (Chapter, 2020)
      In this paper, a low-noise low-power bio-potential amplifier for electromyogram (EMG) signals have designed and simulated in a commercially available 0.18 μm CMOS technology. In the first stage, a tunable band low-noise ...
    • High Input Impedance Capacitively-coupled Neural Amplifier and Its Boosting Principle 

      Habibzadeh Tonekabony Shad, Erwin; Naderi, Kebria; Molinas Cabrera, Maria Marta (Chapter, 2020)
      This article proposes a technique for increasing the input impedance of conventional capacitively-coupled neural amplifiers based on careful examination of its analytical model. Following the precise derivation of the input ...
    • Impedance and Noise of Passive and Active Dry EEG Electrodes: A Review 

      Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Ytterdal, Trond (Peer reviewed; Journal article, 2020)
      Dry electrodes are a promising solution for prolonged EEG signal acquisition, whereas wet electrodes may lose their signal quality in the same situation and require skin preparation for set-up. Here, we review the impedance ...
    • A Low-power and Low-noise Multi-purpose Chopper Amplifier with High CMRR and PSRR 

      Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Ytterdal, Trond (Chapter, 2020)
      In this article, by choosing and optimizing suitable structure in each stage, we have designed a multi-purpose low noise chopper amplifier. The proposed neural chopper amplifier with high CMRR and PSRR is suitable for EEG, ...
    • Modified Current-reuse OTA to Achieve High CMRR by utilizing Cross-coupled Load 

      Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Ytterdal, Trond (Chapter; Peer reviewed, 2019)
      Since biomedical signals have very low amplitude and high common-mode like environmental noise, the amplifiers used with these signals should have high CMRR. The cross-coupled amplifier attenuates common-mode signal strongly ...
    • A Power Efficient Low-noise and High Swing CMOS Amplifier for Neural Recording Applications 

      Naderi, Kebria; Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Heidari, Ali (Peer reviewed; Journal article, 2020)
      In this paper, a power efficient, low-noise and high swing capacitively-coupled amplifier (CCA) for neural recording applications is proposed. The use of current splitting technique and current scaling technique in a current ...
    • A Power Efficient, High Gain and High Input Impedance Capacitively-coupled Neural Amplifier 

      Habibzadeh Tonekabony Shad, Erwin; Moeinfard, Tania; Molinas Cabrera, Maria Marta; Ytterdal, Trond (Chapter, 2020)
      In this article, a capacitively-coupled neural amplifier based on a new high gain low-noise amplifier is proposed. By utilizing a cross-coupled structure, the open-loop gain of the amplifier is boosted. This modification ...
    • A Power-Efficient Low-noise and High Swing CMOS Amplifier for Neural Recording Applications 

      Naderi, Kebria; Habibzadeh Tonekabony Shad, Erwin; Molinas Cabrera, Maria Marta; Heidari, Ali (Chapter, 2020)
      In this paper, a power efficient, low-noise and high swing capacitively-coupled amplifier (CCA) for neural recording applications is proposed. The use of current splitting technique and current scaling technique in a current ...
    • A Very Low SEF Neural Amplifier by Utilizing a High Swing Current-Reuse Amplifier 

      Naderi, Kebria; Habibzadeh Tonekabony Shad, Erwin; Molinas, Marta Maria Cabrera; Heidari, Ali; Ytterdal, Trond (Chapter, 2020)
      Although current-reuse amplifier has been widely used in biomedical applications because of their low input-referred thermal noise, they don't have high output swing and their gain is limited. In this article, a rail-to-rail ...