Title :
A 0.18μm CMOS switched capacitor voltage modulator
Author :
Cornelissens, Koen ; Reynaert, Patrick ; Steyaert, Michiel
Author_Institution :
ESAT-MICAS, Leuven, Belgium
Abstract :
A voltage modulator using only switched capacitors is presented. Depending on the desired output voltage a combination of capacitances is connected to the output capacitance, to increase or decrease the output voltage. The circuit is capable of delivering output signals within a frequency range from DC up to 100 kHz, with all harmonic distortion components below 30 dB. Operating at a supply voltage of 1.8 V, it delivers a maximum output power of 32mW with an efficiency of 72%.
Keywords :
CMOS integrated circuits; harmonic distortion; modulators; switched capacitor networks; 0.18 micron; 1.8 V; 32 mW; 72 percent; CMOS switched capacitor voltage modulator; harmonic distortion; output capacitance; output signals; AC generators; Capacitance; Capacitors; Charge pumps; Circuits; Clocks; Equations; Signal generators; Switches; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European
Print_ISBN :
0-7803-9205-1
DOI :
10.1109/ESSCIR.2005.1541638
