A 4.5 GΩ-Input Impedance Chopper Amplifier With Embedded DC-Servo and Ripple Reduction Loops for Impedance Boosting to Sub-Hz

IEEE Transactions on Circuits & Systems II Express Briefs ◽

10.1109/tcsii.2020.3007934 ◽

2021 ◽

Vol 68 (1) ◽

pp. 116-120

Author(s):

Xuan Thanh Pham ◽

Duc Nha Duong ◽

Ngoc Tan Nguyen ◽

Nguyen Van Truong ◽

Jong-Wook Lee

Keyword(s):

Input Impedance ◽

Ripple Reduction ◽

Chopper Amplifier

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A 2.8 nV/√Hz Chopper Amplifier for Bridge Readout with Dual Ripple Reduction and Noise-Nonlinearity -Cancelling Loop

2021 IEEE International Symposium on Circuits and Systems (ISCAS) ◽

10.1109/iscas51556.2021.9401713 ◽

2021 ◽

Author(s):

Huapin Chen ◽

Lei Zhang ◽

Yan Wang

Keyword(s):

Ripple Reduction ◽

Chopper Amplifier

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A 0.52 μW, 38 nV/Hz Chopper Amplifier with a Low-Noise DC Servo Loop, an Embedded Ripple Reduction Loop, and a Squeezed Inverter Stage

IEEE Transactions on Circuits & Systems II Express Briefs ◽

10.1109/tcsii.2020.3045491 ◽

2020 ◽

pp. 1-1

Author(s):

Xuan Thanh Pham ◽

Van-Nhan Nguyen ◽

Jie-Seok Kim ◽

Jong-Wook Lee

Keyword(s):

Low Noise ◽

Ripple Reduction ◽

Chopper Amplifier

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An 80-mVpp Linear-Input Range, 1.6-GΩ Input Impedance, Low-Power Chopper Amplifier for Closed-Loop Neural Recording That Is Tolerant to 650-mVpp Common-Mode Interference

IEEE Journal of Solid-State Circuits ◽

10.1109/jssc.2017.2753824 ◽

2017 ◽

pp. 1-18 ◽

Author(s):

Hariprasad Chandrakumar ◽

Dejan Markovic

Keyword(s):

Low Power ◽

Input Impedance ◽

Closed Loop ◽

Neural Recording ◽

Common Mode ◽

Input Range ◽

Chopper Amplifier ◽

Mode Interference

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A high input impedance chopper amplifier using negative impedance convertor for implantable EEG recording

IEICE Electronics Express ◽

10.1587/elex.17.20200238 ◽

2020 ◽

Vol 17 (17) ◽

pp. 20200238-20200238

Author(s):

Zhiming Liang ◽

Bin Li ◽

Zhaohui Wu ◽

Yunfeng Hu

Keyword(s):

Input Impedance ◽

High Input Impedance ◽

Chopper Amplifier

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A High Input Impedance Fully-Differential Chopper Amplifier for Closed-Loop Neural Recording

2020 28th Iranian Conference on Electrical Engineering (ICEE) ◽

10.1109/icee50131.2020.9260657 ◽

2020 ◽

Author(s):

Fatemeh Ansari ◽

Mohammad Yavari

Keyword(s):

Input Impedance ◽

Closed Loop ◽

Neural Recording ◽

High Input Impedance ◽

Fully Differential ◽

Chopper Amplifier

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A 13nV/✓Hz 4.5μW Chopper Instrumentation Amplifier with Robust Ripple Reduction and Input Impedance Boosting Techniques

2020 IEEE Custom Integrated Circuits Conference (CICC) ◽

10.1109/cicc48029.2020.9075876 ◽

2020 ◽

Author(s):

Liang Fang ◽

Ping Gui

Keyword(s):

Input Impedance ◽

Instrumentation Amplifier ◽

Ripple Reduction

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27.1 A 2.8µW 80mVpp-linear-input-range 1.6GΩ-input impedance bio-signal chopper amplifier tolerant to common-mode interference up to 650mVpp

2017 IEEE International Solid-State Circuits Conference (ISSCC) ◽

10.1109/isscc.2017.7870454 ◽

2017 ◽

Author(s):

Hariprasad Chandrakumar ◽

Dejan Markovic

Keyword(s):

Input Impedance ◽

Common Mode ◽

Input Range ◽

Chopper Amplifier ◽

Mode Interference

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Offset Voltage and Output Voltage Ripple Reduction of an Operational Amplifier using Auto-zero Technique

IEEJ Transactions on Electronics Information and Systems ◽

10.1541/ieejeiss.140.32 ◽

2020 ◽

Vol 140 (1) ◽

pp. 32-37

Author(s):

Shintaro Motoki ◽

Takahide Sato ◽

Satomi Ogawa

Keyword(s):

Operational Amplifier ◽

Output Voltage ◽

Offset Voltage ◽

Voltage Ripple ◽

Ripple Reduction

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Factor Analysis of Torque Ripple Reduction in Synchronous Reluctance Motors Derived from Topology Optimization

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.139.380 ◽

2019 ◽

Vol 139 (4) ◽

pp. 380-387

Author(s):

Hiroyuki Kaimori ◽

Yoshifumi Okamoto ◽

Shinji Wakao

Keyword(s):

Factor Analysis ◽

Topology Optimization ◽

Torque Ripple ◽

Torque Ripple Reduction ◽

Ripple Reduction

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Output Current Ripple Reduction of LED Driver Using Ceramic-Capacitor-Input Circuit and Buck-Boost Converter

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.139.806 ◽

2019 ◽

Vol 139 (9) ◽

pp. 806-813 ◽

Author(s):

Mitsuhiro Kadota ◽

Hiroyuki Shoji ◽

Atsushi Hatakeyama ◽

Keiji Wada

Keyword(s):

Boost Converter ◽

Input Circuit ◽

Output Current ◽

Ceramic Capacitor ◽

Ripple Reduction ◽

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