Results 41 to 50 of about 126,760 (143)
A 5.5 µW 42nV/√ Hz Chopper stabilized Amplifier for Biomedical Application with Input Impedance Enhancement [PDF]
, 2021 The continuous real-time monitoring of diverse physical parameters using biosignals like ECG and EEG requires the biomedical sensors. Such sensor consists of analog front-end unit for which low noise and low power Operational transconductance amplifier ...
Naik, Amisha, Adesara, Ankit
core
Fully Integrated Biopotential Acquisition Analog Front-End IC
Sensors, 2015 A biopotential acquisition analog front-end (AFE) integrated circuit (IC) is presented. The biopotential AFE includes a capacitively coupled chopper instrumentation amplifier (CCIA) to achieve low input referred noise (IRN) and to block unwanted DC ...
Haryong Song +3 more
doaj +1 more source
Low-voltage DDA-based chopper-stabilized amplifier for biosignal processing
, 2023 This dissertation presents a low-voltage chopper-stabilized Differential Difference Amplifier (DDA) instrumentation amplifier. The proposed DDA incorporates feed-forward frequency compensation and a Type II compensator to achieve good bandwidth and phase
Fan, Xinlan
core
A 5-nV/√Hz Chopper Negative-R Stabilization Preamplifier for Audio Applications
Micromachines, 2020 This paper presents a low-noise and low-power audio preamplifier. The proposed low-noise preamplifier employs a delay-time chopper stabilization (CHS) technique and a negative-R circuit, both in the auxiliary amplifier to cancel the non-idealities of the
Jamel Nebhen +2 more
doaj +1 more source
A Novel Infrared Temperature Measurement with Dual Mode Modulation of Thermopile Sensor
Sensors, 2019 Superior to the traditional infrared temperature sensing architecture including infrared sensor and thermistor, we propose a novel sensing approach based on a single thermopile sensor with dual modes modulation.
Chih-Hsiung Shen +2 more
doaj +1 more source
A Study of the Transfer Function of Chopper Amplifiers [PDF]
, 1964 The chopper amplifier is frequently used in several types of d.c and a.c amplifiers as well as in d.c servomechanisms employing a.c control elements. In this paper the transfer function of the chopper amplifier is derived for a sinusoidal input signal ...
MIZUKAMI, Kōichi, HAYASHI, Shigenori
core
A 36μW rail-to-rail-input chopper stabilized amplifier using correlated double sampling
, 2013 This paper describes a chopper stabilized amplifier, obtained using an input chopper for modulation, an AC coupling for offset rejection and a correlated double sampling structure for demodulation, avoiding ripple spurs.
D'Amico S. +5 more
core +1 more source
Consideration of Bandwidth of Amplifier Block in Chopper Stabilization Amplifier [PDF]
This thesis presents a consideration of bandwidth of amplifier block in chopper stabilization amplifier. In the theory of the amplifier using chopper stabilization technique, Fourier series expansion often is used.
タンノ, コウイチ +18 more
core
Micromachines, 2018 This paper proposes a reconfigurable sensor analog front-end using low-noise chopper-stabilized delta-sigma capacitance-to-digital converter (CDC) for capacitive microsensors.
Hyungseup Kim +8 more
doaj +1 more source
3.2 A Chopper-Stabilized Amplifier with a Relaxed Fill-In Technique and 22.6pA Input Current
, 2023 In chopper amplifiers, the interaction between the input signal and the chopper clock can cause intermodulation distortion (IMD). This is due to amplifier delay, which causes signal transitions generated by the input chopper to arrive at the amplifier's ...
Rooijers, C.T. (author) +5 more
core +1 more source