Name
Abstract | ||
|---|---|---|
A low-power delta-sigma modulator for Digital-Audio is presented, which employs tri-level quantization to achieve 97dB dynamic range, over a 25 KHz bandwidth. The modulator has third-order single loop CIFB architecture as cascade of integrators with feedback and feed-forward paths. A new Operational amplifier is designed which is at least 2-times more power efficient than a regular folded-cascode amplifier. A new latched comparator with merged pre-amplification and regenerative paths is designed for the tri-level quantizer, which has very low power consumption as well as high speed and sensitivity. The modulator is implemented in a standard 0.6um CMOS process. Its supply voltage ranges in 3.0-3.5V and its power consumption is 1.5mw from a 3.0V supply. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/ISCAS.2006.1693694 | 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS |
Keywords | Field | DocType |
operational amplifiers,bandwidth,feedback loop,feed forward,quantization,low power electronics,dynamic range,power efficiency,cmos integrated circuits,comparators,operational amplifier,delta sigma modulation,delta modulation,integrators | Comparator,Computer science,Control theory,Delta-sigma modulation,Electronic engineering,CMOS,Quantization (signal processing),Energy consumption,Operational amplifier,Amplifier,Low-power electronics | Conference |
ISSN | Citations | PageRank |
0271-4302 | 3 | 0.55 |
References | Authors | |
2 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| M. Ranjbar | 1 | 3 | 0.55 |
| G. R. Lahiji | 2 | 3 | 0.55 |
| Omid Oliaei | 3 | 75 | 20.09 |