scholarly journals Optimal Design Methodology for High-Order Continuous-Time Wideband Delta-Sigma Converters

2007 ◽  
Author(s):  
Yi Ke ◽  
Soheil Radiom ◽  
HamidReza Rezaee ◽  
Guy Vandenbosch ◽  
Jan Craninckx ◽  
...  
Keyword(s):  
Optimal Design ◽  
Continuous Time ◽  
Design Methodology ◽  
High Order ◽  
Delta Sigma ◽  
Order Continuous

A systematic design methodology for power-optimal design of high-order multi-bit continuous-time Delta-Sigma modulators

2008 ◽  
Vol 58 (3) ◽  
pp. 215-225 ◽  
Author(s):  
Yi Ke ◽  
Soheil Radiom ◽  
Jan Craninckx ◽  
Guy Vandenbosch ◽  
Georges G. E. Gielen
Keyword(s):  
Optimal Design ◽  
Continuous Time ◽  
Design Methodology ◽  
High Order ◽  
Systematic Design ◽  
Delta Sigma

Top-down design methodology of a multi-bit continuous-time delta–sigma modulator

2008 ◽  
Vol 60 (1-2) ◽  
pp. 145-153 ◽  
Author(s):  
A. Mariano ◽  
D. Dallet ◽  
Y. Deval ◽  
J.-B. Bégueret
Keyword(s):  
Continuous Time ◽  
Design Methodology ◽  
Top Down ◽  
Delta Sigma Modulator ◽  
Delta Sigma

Nauta OTA in a second-order continuous-time delta-sigma modulator

2014 ◽  
Author(s):  
Astria Nur Irfansyah ◽  
Long Pham ◽  
Andrew Nicholson ◽  
Torsten Lehmann ◽  
Julian Jenkins ◽  
...  
Keyword(s):  
Continuous Time ◽  
Second Order ◽  
Delta Sigma Modulator ◽  
Delta Sigma ◽  
Order Continuous

A 2nd-Order Continuous Time Delta-Sigma Modulator for Photoplethysmography Analog Front-End

2020 ◽  
Author(s):  
Eka Fitrah Pribadi ◽  
Rajeev Kumar Pandey ◽  
Paul C.-P. Chao
Keyword(s):  
Transfer Function ◽  
Continuous Time ◽  
Supply Voltage ◽  
Signal To Noise Ratio ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Delta Sigma Modulator ◽  
Delta Sigma ◽  
Low Pass ◽  
Order Continuous

Abstract A brief presents a 2nd order continuous-time delta-sigma modulator (CT-DSM) using a low pass filter to reduce the slew rate requirement of the output swing of the first integrator. By adding the low pass filter, the desired transfer function of the CT-DSM is altered. Thus a feed-forward based compensation circuit is introduced to transform the altered transfer function to the original condition. The CT-DSM is designed with a bandwidth of 100 Hz to satisfy the requirement of photoplethysmogram (PPG) detection. The CT-DSM is simulated using CMOS 180 nm technology with the layout area 460 μm × 460 μm. The circuit uses a 1.8 V supply voltage and consumes 35.61 μW. The signal-to-noise ratio of the CT-DSM is 101.2 dB, while the SFDR is 99.1 dB.

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