A 3.3 V switched-current second order sigma-delta modulator for audio applications

2002 ◽  
Author(s):  
M. Loulou ◽  
D. Dallet ◽  
P. Marchegay
Keyword(s):  
Second Order ◽  
Sigma Delta Modulator ◽  
Sigma Delta ◽  
Switched Current

A 3.3 V, 10 Bits, Clock-Feedthrough Compensated Switched-Current Second Order Sigma-Delta Modulator

2004 ◽  
Vol 39 (1) ◽  
pp. 81-87 ◽  
Author(s):  
Mourad Loulou ◽  
Dominique Dallet ◽  
Nouri Masmoudi ◽  
Philippe Marchegay ◽  
Lotfi Kamoun
Keyword(s):  
Second Order ◽  
Sigma Delta Modulator ◽  
Sigma Delta ◽  
Clock Feedthrough ◽  
Switched Current

scholarly journals Second-order sigma-delta modulator in standard cmos technology

2004 ◽  
Vol 1 (3) ◽  
pp. 37-44 ◽  
Author(s):  
Dragisa Milovanovic ◽  
Milan Savic ◽  
Miljan Nikolic
Keyword(s):  
Dynamic Range ◽  
Cmos Technology ◽  
Second Order ◽  
Clock Frequency ◽  
Sigma Delta Modulator ◽  
Sigma Delta ◽  
Power Meter ◽  
Sampling Ratio

As a part of wider project sigma-delta modulator was designed. It represents an A/D part of a power meter IC. Requirements imposed were: SNDR and dynamic range > 50 dB for maximum input swing of 250 mV differential at 50 Hz. Over sampling ratio is 128 with clock frequency of 524288 Hz which gives bandwidth of 2048 Hz. Circuit is designed in 3.3 V supply standard CMOS 0.35 ?m technology.

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