A high CMRR analog front-end IC for wearable physiological monitoring

2012 ◽  
Author(s):  
D. Susheel Kumar ◽  
K. P. Safeer ◽  
P. S. Pandian ◽  
V. C. Padaki ◽  
D. Shravan Kumar ◽  
...  
Keyword(s):  
Physiological Monitoring ◽  
Front End ◽  
Analog Front End ◽  
High Cmrr

A biasing based current mode analog front-end for biomedical applications

2021 ◽  
Author(s):  
Raja Krishnamoorthy ◽  
E. Kavitha ◽  
V. Beslin Geo ◽  
K.S.R. Radhika ◽  
C. Bharatiraja
Keyword(s):  
Biomedical Applications ◽  
Current Mode ◽  
Front End ◽  
Analog Front End

A Floating-Gate-Based Four-Channel Reconfigurable Analog Front-End Integrated Circuit

2021 ◽  
Author(s):  
Zu-Jia Lo ◽  
Bipasha Nath ◽  
Yuan-Chuan Wang ◽  
Yun-Jie Huang ◽  
Hui-Chun Huang ◽  
...  
Keyword(s):  
Integrated Circuit ◽  
Floating Gate ◽  
Front End ◽  
Analog Front End

A 296 nJ Energy-per-Measurement Relaxation Oscillator-Based Analog Front-End for Chemiresistive Sensors

2021 ◽  
pp. 1-11
Author(s):  
Antonio Vincenzo Radogna ◽  
Simonetta Capone ◽  
Luca Francioso ◽  
Pietro Aleardo Siciliano ◽  
Stefano D'Amico
Keyword(s):  
Relaxation Oscillator ◽  
Front End ◽  
Analog Front End

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.

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