scholarly journals Digital LDO regulator with analogue‐assisted loop using source follower

2020 ◽  
Vol 56 (16) ◽  
pp. 801-803
Author(s):  
E. Kim ◽  
C. Kim
Keyword(s):  
Source Follower ◽  
Ldo Regulator

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

A 65�A 8MHz Integrated Oscillator with LDO Regulator Supply for Low-Power Handheld SoC Applications

2008 ◽  
Vol 1 (4) ◽  
pp. 9-14
Author(s):  
Jacob Day ◽  
Paul Vulpoiu ◽  
Jeffery Julich ◽  
Donald Lie
Keyword(s):  
Low Power ◽  
Ldo Regulator

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.

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.

Comparison of junction-isolated and soi high-voltage devices operating in the source-follower mode

2005 ◽  
Author(s):  
E. Arnold ◽  
S. Merchant ◽  
M. Amato ◽  
S. Mukherjee ◽  
H. Pein ◽  
...  
Keyword(s):  
High Voltage ◽  
Source Follower

A Low Power Low-Pass Fourth-Order Filter for WiMAX/LTE Receiver in CMOS 45nm Technology

2016 ◽  
Vol 26 (03) ◽  
pp. 1750048 ◽  
Author(s):  
Vida Orduee Niar ◽  
Gholamreza Zare Fatin
Keyword(s):  
Low Power ◽  
Fourth Order ◽  
Supply Voltage ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Power Filter ◽  
Order Filter ◽  
Source Follower ◽  
Low Pass ◽  
Circuit Technique

In this paper, a [Formula: see text]-[Formula: see text] low-pass and low power filter with tunable in-band attenuation for WiMAX/LTE receiver is presented. The fourth-order filter consists of two cascaded biquad stages. The source-follower (SF) stage is used as a key building block in these biquads. In this paper, we have presented a circuit technique to reduce the nonlinearity of the SF stage resulting from unmatched signal swings at the gate and source terminals of the input transistor. The proposed SF stage, is used for design of a linear biquad which is then utilized in a fourth-order Butterworth low-pass filter. The simulation results of the filter for bandwidth of 10 MHz show that the IIP3 of the filter is equal to 8.22[Formula: see text]dBm, in-band noise density is 100[Formula: see text]nV/[Formula: see text]Hz and power consumption is 5.9[Formula: see text]mW. The supply voltage of the filter is equal to 1[Formula: see text]V.

scholarly journals A CMOS Image Sensor With In-Pixel Buried-Channel Source Follower and Optimized Row Selector

2009 ◽  
Vol 56 (11) ◽  
pp. 2390-2397 ◽  
Author(s):  
Yue Chen ◽  
Xinyang Wang ◽  
Adri J. Mierop ◽  
Albert J. P. Theuwissen
Keyword(s):  
Cmos Image Sensor ◽  
Image Sensor ◽  
Buried Channel ◽  
Source Follower

ASTEROID: A new 64 channel ASIC for source follower based readout of the MIXS DEPFET arrays on BepiColombo

2007 ◽  
Author(s):  
Matteo Porro ◽  
Luca Bombelli ◽  
Giulio De Vita ◽  
Carlo Fiorini ◽  
Sven Herrmann ◽  
...  
Keyword(s):  
Source Follower
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