Results 61 to 70 of about 124,127 (185)

Design of a low offset operational amplifier for current detection

Dianzi Jishu Yingyong
Aiming at the requirement of current detection for operational amplifier performance, a new low offset operational amplifier circuit is proposed. The closed-loop current sampling circuit is composed of low-loss op-amp, PMOS tube and resistor.
Li Xin, Yu Chen, Yang Senlin
doaj   +1 more source

A Low-Input Current Chopper Amplifier

, 2012
This thesis describes the implementation of a low input-current chopper amplifier. Chopper amplifiers are attractive in applications where high DC precision is required, due to their low offset, drift & 1/f noise.
Chava, B.C. (author)
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., Baschirotto A., De Blasi M., De Matteis M., Fornasari A., Pipino A.   +5 more
core   +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 Low-Power 68.4 dB Signal-to-Noise-and-Distortion Ratio Noise-Shaping SAR ADC for Biomedical Applications

Journal of Low Power Electronics and Applications
This paper introduces a novel analog-to-digital converter (ADC) employing a passive noise-shaping (NS) technique combined with a chopper-stabilized comparator, enhancing performance and reducing ripple factor while maintaining low power consumption.
Thi Phuong Ha, The Khai Chu, Van Tung Nguyen, Orazio Aiello, Xuan Thanh Pham   +4 more
doaj   +1 more source

A 0.6-µW Chopper Amplifier Using a Noise-Efficient DC Servo Loop and Squeezed-Inverter Stage for Power-Efficient Biopotential Sensing. [PDF]

Sensors (Basel), 2020
Pham XT, Nguyen NT, Nguyen VT, Lee JW.
europepmc   +1 more source

A 5.5 μW 42nV/√Hz Chopper stabilized Amplifier for Biomedical Application with Input Impedance Enhancement [PDF]

The continuous real-time monitoring of diverse physical parameters using biosignals like ECG and EEG requires the biomedical sensors. Such sensor consists of analog frontend unit for which low noise and low power Operational transconductance amplifier ...
Naik, Amisha, Adesara, Ankit Mukeshbhai
core   +1 more source

Optical Chopper for LOngitudinal-Detected (LOD) EPR [PDF]

Dynamic nuclear polarization (DNP) is a nuclear magnetic resonance (NMR) hyperpolarization technique that mediates polarization transfer from unpaired electrons to nuclear spins. DNP performance can vary significantly depending on the types of polarizing
Utsab, Banerjee, Kong Ooi, Tan, Thanh Phong, Lê, Zhenfeng, Pang, Andrea, Cappozi   +4 more
core   +1 more source

Design of a Low-Noise Low Dropout Regulator for CMOS Pixel Sensors

IEEE Access
A low-noise Low Dropout Regulator (LDO) is designed in a Semiconductor Manufacturing International Corporation (SMIC) $0.18~\mu $ m process, aiming at supply of a clean and constant clamping voltage in the operation of Correlated Double Sampling (CDS ...
Shi Zhan, Li Xue-Kang, Zhang Ye, Feng Chong, Bo Chun-Juan   +4 more
doaj   +1 more source

Design of an SAR-Assisted Offset-Calibrated Chopper CFIA for High-Precision 4–20 mA Transmitter Front Ends

Applied Sciences
In loop-powered 4–20 mA transmitter systems, sensors like temperature, pressure, flow, and gas sensors are chosen based on specific application requirements.
Jian Ren, Yiqun Niu, Bin Liu, Meng Li, Yansong Bai, Yuang Chen   +5 more
doaj   +1 more source