Results 221 to 230 of about 31,177 (269)

Research on the readout noise suppression method for digital correlated double sampling

Research in Astronomy and Astrophysics, 2021
As the areas of CCD detectors and CCD mosaics have become larger and larger, the number of readout channels in astronomical cameras has increased accordingly to keep the image readout time within an acceptable range.
Wei Duan, Q. Song, M. Wei, Zhaowang Zhao, Wen Wang, Yuheng Zhang, Zhixing Feng   +6 more
semanticscholar   +1 more source

A Sigma-Delta modulator circuit using correlated double sampling

, 2021
This paper presents a 14-bit ΔΣ analog-to-digital converter (ADC) with 2.35 kHz BW, while operating from a 3.3 V supply. Correlated double sampling (CDS) are used to mitigate the ADC’s offset and 1/f noise, especially at low frequencies.
Xiru Zhou, Q. Duan, S. Huang
semanticscholar   +1 more source

Ultra-Low Power CMOS Image Sensor With Two-Step Logical Shift Algorithm-Based Correlated Double Sampling Scheme

IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2020
This article presents an ultra-low power counter structure for a column-parallel single-slope analog-to-digital converter (SS-ADC) in CMOS image sensors.
Keunyeol Park, S. Yeom, S. Kim
semanticscholar   +1 more source

Correlated Double Amplifying Readout Technique for Low-Noise Power-Efficient MEMS Capacitive Accelerometer

IEEE Transactions on Instrumentation and Measurement, 2022
Microelectromechanical system (MEMS) capacitive accelerometer for the Internet of Things applications is designed with open-loop structure rather than closed-loop structure to achieve low power consumption.
Longjie Zhong, Shubin Liu, Donglai Xu
semanticscholar   +1 more source

Digital correlated double sampling CCD readout characterization

Astronomical Telescopes + Instrumentation, 2018
Charge Coupled Devices (CCD) are detectors widely used in astronomical observation due to their high sensitivity and high spatial resolution. The readout technique is often implemented with analog circuits.
Carlo La Torre, J. Albendea
semanticscholar   +2 more sources

A Low-Power Photoplethysmography Sensor using Correlated Double Sampling and Reference Readout Circuit

Italian National Conference on Sensors, 2019
This paper describes a low-power photoplethysmography (PPG) sensor circuit using a current integration circuit. PPG sensors are widely used in modern healthcare products for monitoring cardiovascular information.
Kana Sasai, S. Izumi, Kento Watanabe, Yuji Yano, H. Kawaguchi, M. Yoshimoto   +5 more
semanticscholar   +1 more source

Noncontinuous Scanning Method for Cooperative Targets Based on Correlated Double Sampling

IEEE Transactions on Instrumentation and Measurement
The laser scanning projection systems scan to determine the position of the center of a cooperative target and then calculate the coordinate transformation between the projected surface and the projection instrument.
Kun Wu, Hongtao Zhang, Maosheng Hou, Jianli Zheng   +3 more
semanticscholar   +1 more source

A 27.5 fJ/step SAR Capacitance-to-Digital Converter Based on Correlated Double Sampling

International Symposium on Circuits and Systems
This paper presents a low-power and energy-efficient capacitance-to-digital converter (CDC) for a single-end sensor based on correlated double sampling (CDS) technology.
Qingjiang Xia, You You, Yacong Zhang, Wengao Lu, Runkun Zhu, Zhongjian Chen   +5 more
semanticscholar   +1 more source

A 5-ms Error, 22-μA Photoplethysmography Sensor using Current Integration Circuit and Correlated Double Sampling

Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2018
This paper presents a low-power Photoplethysmography (PPG) sensing method. The PPG is commonly used in recent wearable devices to detect cardiovascular information including heartbeat.
Yuji Yano
semanticscholar   +1 more source

CCD Signal Processing Circuit Based On Correlated Double Sampling

IEEE International Conference on Solid-State and Integrated Circuit Technology, 2018
The main noise in the output signal of the CCD (Charge Coupled Devices) Image Sensor is the reset noise. Therefore, the suppression and weakening for the reset noise of the CCD output signal reduction is a very important technology in CCD signal ...
Yanqing Zeng, Wengang Huang, Xiaozong Huang   +2 more
semanticscholar   +1 more source