Title :
12 V Σ-Δ class-D amplifier in 5 V CMOS technology
Author :
Ballan, H. ; Declercq, M.
Author_Institution :
Electron. Lab., Swiss Federal Inst. of Technol., Lausanne, Switzerland
Abstract :
A 12 V, 5.7 W class-D single chip amplifier, based on a Σ-Δ modulator and a full-bridge output, has been integrated in a standard 5 V CMOS technology. Circuit techniques are used to cope with the voltage limitations of the devices. Stand-by power dissipation is reduced to 20 mW thanks to a new level-shifter cell.
Keywords :
CMOS analogue integrated circuits; audio-frequency amplifiers; bridge circuits; sigma-delta modulation; Σ-Δ modulator; 12 V; 20 mW; 5 V; 5.7 W; CMOS technology; class-D single chip amplifier; full-bridge output; level-shifter cell; stand-by power dissipation; Application specific integrated circuits; Breakdown voltage; CMOS technology; Clocks; Integrated circuit technology; Low voltage; Power amplifiers; Protection; Pulse width modulation; Signal processing;
Conference_Titel :
Custom Integrated Circuits Conference, 1995., Proceedings of the IEEE 1995
Print_ISBN :
0-7803-2584-2
DOI :
10.1109/CICC.1995.518246
