Sigma-delta ADC characterization using noise transfer function pole-zero tracking

2007 ◽  
Author(s):  
Hochul Kim ◽  
Kye-shin Lee
Keyword(s):  
Transfer Function ◽  
Sigma Delta ◽  
Noise Transfer Function ◽  
Sigma Delta Adc

scholarly journals Technique to Improve SNR for Sigma Delta Adcs for Audio Signals

2018 ◽  
Vol 7 (3.6) ◽  
pp. 91
Author(s):  
Ramana Murthy Dumpala ◽  
. .
Keyword(s):  
Transfer Function ◽  
Second Order ◽  
Analog To Digital Converters ◽  
Clock Frequency ◽  
Audio Signals ◽  
Sigma Delta ◽  
Feed Forward ◽  
Analog To Digital ◽  
Noise Transfer Function

A RISR architecture for Sigma-delta analog to digital converters with modified noise transfer function to obtain a better performance in terms of SNR is proposed. Cascading of two modified second order modulators are done to achieve 4th order modulator. Behavioral simulations are done to study the performance of feed-forward and the modified cascaded architecture. They are designed to operate at 1.28MHz clock frequency for audio applications (OSR of 32). It is noted that SNR of 115dB is achieved by cascading of two Modified second order RISR architectures which is 8dB more than the normal RISR architecture.  

Sigma-Delta ADC on SOI Technology for Working at High Temperatures

2020 ◽  
Vol 63 (11) ◽  
pp. 586-595
Author(s):  
Alexander Korotkov ◽  
Dmitry Morozov ◽  
Mikhail Pilipko ◽  
Mikhail Yenuchenko
Keyword(s):  
High Temperatures ◽  
Sigma Delta ◽  
Sigma Delta Adc ◽  
Soi Technology

A 2.5-V 14-bit, 180-mW Cascaded $\Sigma\Delta$ ADC for ADSL2+ Application

2007 ◽  
Vol 42 (11) ◽  
pp. 2357-2368 ◽  
Author(s):  
Teng-Hung Chang ◽  
Lan-Rong Dung ◽  
Jwin-Yen Guo ◽  
Kai-Jiun Yang
Keyword(s):  
Sigma Delta ◽  
Sigma Delta Adc
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