0.9V 58W 92dB SNDR audio ΔΣ modulator with high efficiency low noise switched-opamp and novel DWA technique

Electronics Letters

Volumn 47, Issue 4, 2011, Pages 237-239

  Wang, H ^a   Zhao, M ^a   Wu, X ^a   Liu, B ^b  

^a ZHEJIANG UNIVERSITY   (China)

^b ANALOG DEVICES INC   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FLICKER NOISE; HIGH EFFICIENCY; LOW NOISE; POWER EFFICIENT; STABILISATION; SWITCHED OPAMP; ULTRA-LOW POWER;

ACOUSTIC NOISE; CHOPPERS (CIRCUITS); OPERATIONAL AMPLIFIERS;

AUDIO ACOUSTICS;

EID: 79951871571     PISSN: 00135194     EISSN: None     Source Type: Journal    
DOI: 10.1049/el.2010.7409     Document Type: Article

References (4)

1. Chae, Y., Lee, I., and Han, G.: ' A 0.7-V 36-W 85dB-DR audio ΔΣ modulator using class-C inverter ', ISSCC Dig. Tech. Pprs, Grenoble, France, February, 2008, p. 490-491
2. Yao, L., Steyaert, M., and Sansen, W.: ' A 1V 88dB 20kHz sigma-delta modulator in 90nm CMOS ', ISSCC Dig. Tech. Pprs, San Francisco, CA, USA, February, 2004, p. 80-81
3. Park, H., Nam, K., Su, D.K., Vleugels, K., and Wooley, B.A.: ' A 0.7-V 100-dB 870-W digital audio ΔΣ modulator ', VLSI Circuits Dig. Tech. Pprs, Honolulu, HI, USA, June, 2008, p. 178-179
4. Wang, H., Xu, J., and Wu, X.: ' A high power efficiency class AB Switched-opamp for low power sigma-delta modulators ', EDSSC, Xi'an, People's Republic of China, December, 2009, p. 429-432