Results 51 to 60 of about 126,760 (143)

A 55 V, 6.6 nV/√Hz Chopper Operational Amplifier with Dual Auto-Zero and Common-Mode Voltage Tracking

open access: yesEng
For high-voltage signal detection applications, an auto-zero and chopper operational amplifier (OPA) is proposed in this paper. With the auto-zero and chopper technique, the OPA adopts an eight-channel Ping-Pong mechanism to reduce the high-frequency ...
Zhifeng Chen   +3 more
doaj   +1 more source

On the Mechanical Chopper for the Chopper Amplifier (Part 1) : The Relation Between the Conversion Efficiency and Contact Rate [PDF]

open access: yes
Though the various studies on the chopper amplifier (the contact modulated amplifier) have been reported, but those on the chopper itself are not so many. In the formers, the chopping action is assumed to be an ideal ON - OFF action.
松山, 潔
core   +1 more source

A Compact Low-Power Chopper Low Noise Amplifier for High Density Neural Front-Ends

open access: yesSensors
This paper presents a low-power and area-efficient chopper-stabilized low noise amplifier (CS-LNA) for in-pixel neural recording systems. The proposed CS-LNA can be used in a multi-channel architecture, in which the chopper mixers of the LNA are ...
Alessandro Fava   +3 more
doaj   +1 more source

Chopper amplifier circuit with CMOS switches and amplifier FETs

open access: yes, 1997
of NL 1001231 (C2) The input voltage is fed to the inputs of an operational amplifier via a chopping reversal switchThe CMOS operational amplifier has a current source and a current mirror.
Bakker, A. (author)   +1 more
core  

A Chopper-Stabilized Amplifier with a Relaxed Fill-In Technique and 22.6pA Input Current

open access: yes, 2023
In chopper amplifiers, the interaction between the input signal and the chopper clock can cause intermodulation distortion (IMD). This is mainly due to finite amplifier bandwidth, which causes signal-dependent output spikes at the chopping transitions ...
Rooijers, C.T. (author)   +2 more
core   +1 more source

Design Of Low 1/F Noise Operational Amplifier Cell Using Chopper Stabilization Technique [PDF]

open access: yes, 2017
Teknik stabilisasi chopper dapat digunakan secara luas untuk input diferensial dan penguat keluaran diferensial dan dapat diimplementasikan sakelar perajang bolak-balik dari amplifier. Sebenarnya, penguat instrumentasi dengan teknik stabilisasi chopper
Eritha, Fadila Norasarin
core  

A Wide-Band High-Resolution Transmitter for Optical Isolation Amplifier

open access: yesJournal of Electrical and Computer Engineering, 2020
A wide-band and high-resolution transmitter of optical isolation amplifier is proposed for switching power supply isolation and servo motor drive applications. The transmitter is based on the chopper-stabilized technique and sigma delta modulator.
Chengying Chen   +3 more
doaj   +1 more source

A Low-Input Current Chopper Amplifier

open access: yes, 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  

Low-noise micro-power chopper amplifier for MEMS gas sensor [PDF]

open access: yes, 2011
In this paper, a low-noise, low-power and low voltage Chopper Stabilized CMOS Amplifier (CHS-A) is presented and simulated using transistor model parameters of the AMS 0.35 μm CMOS process.
Aguir, K.   +5 more
core  

Design of a low offset operational amplifier for current detection

open access: yesDianzi 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

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