The “nonideal” drain‐loaded source‐follower and accurate differential‐amplifier analysis

2020 ◽  
Vol 48 (7) ◽  
pp. 1194-1200
Author(s):  
S.M. Rezaul Hasan
Keyword(s):  
Differential Amplifier ◽  
Source Follower

A Dynamic Source-Follower Integrator and Its Application to ΔΣ Modulators

2011 ◽  
Vol E94-C (5) ◽  
pp. 802-806 ◽  
Author(s):  
Ryoto YAGUCHI ◽  
Fumiyuki ADACHI ◽  
Takao WAHO
Keyword(s):  
Source Follower ◽  
Dynamic Source

scholarly journals 1/f Noise Modelling and Characterization for CMOS Quanta Image Sensors

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5459
Author(s):  
Wei Deng ◽  
Eric R. Fossum
Keyword(s):  
Analog Circuits ◽  
Image Sensor ◽  
Image Sensors ◽  
Correlated Double Sampling ◽  
Cmos Image Sensors ◽  
Source Follower ◽  
Cmos Analog Circuits ◽  
Different Origins ◽  
Noise Models ◽  
Fitting Model

This work fits the measured in-pixel source-follower noise in a CMOS Quanta Image Sensor (QIS) prototype chip using physics-based 1/f noise models, rather than the widely-used fitting model for analog designers. This paper discusses the different origins of 1/f noise in QIS devices and includes correlated double sampling (CDS). The modelling results based on the Hooge mobility fluctuation, which uses one adjustable parameter, match the experimental measurements, including the variation in noise from room temperature to –70 °C. This work provides useful information for the implementation of QIS in scientific applications and suggests that even lower read noise is attainable by further cooling and may be applicable to other CMOS analog circuits and CMOS image sensors.

220–325-GHz 25-dB-Gain Differential Amplifier With High Common-Mode-Rejection Circuit in 60-nm InP-HEMT Technology

2021 ◽  
pp. 1-1
Author(s):  
Hiroshi Hamada ◽  
Takuya Tsutsumi ◽  
Adam Pander ◽  
Hideaki Matsuzaki ◽  
Hiroki Sugiyama ◽  
...  
Keyword(s):  
Differential Amplifier ◽  
Common Mode ◽  
Inp Hemt

Low Distortion Analog Front-End for Digital Electret Microphone

2013 ◽  
Vol 475-476 ◽  
pp. 1633-1637
Author(s):  
Seung Yong Bae ◽  
Jong Do Lee ◽  
Eun Ju Choe ◽  
Gil Cho Ahn
Keyword(s):  
Audio Signal ◽  
Cmos Technology ◽  
Common Mode ◽  
Electret Microphone ◽  
Front End ◽  
Voltage Variation ◽  
Analog Front End ◽  
Source Follower ◽  
Source Voltage ◽  
Low Distortion

This paper presents a low distortion analog front-end (AFE) circuit to process electret microphone output signal. A source follower is employed for the input buffer to interface electret microphone directly to the IC with level shifting. A single-ended to differential converter with output common-mode control is presented to compensate the common-mode variation resulted from gate to source voltage variation in the source follower. A replica stage is adopted to control the output bias voltage of the single-ended to differential converter. The prototype AFE circuit fabricated in a 0.35μm CMOS technology achieves 68.2dB peak SNDR and 79.9dB SFDR over an audio signal bandwidth of 20kHz with 2.5V supply while consuming 1.05mW.

scholarly journals Silicon Carbide Fully Differential Amplifier Characterized Up to 500 °C

2016 ◽  
Vol 63 (6) ◽  
pp. 2242-2247 ◽  
Author(s):  
Ye Tian ◽  
Luigia Lanni ◽  
Ana Rusu ◽  
Carl-Mikael Zetterling
Keyword(s):  
Silicon Carbide ◽  
Differential Amplifier ◽  
Fully Differential
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