Title :
A novel CMOS current-mode power amplifier
Author :
Palmisano, G. ; Palumbo, G. ; Pennisi, S.
Author_Institution :
DEES, Catania Univ., Italy
Abstract :
A CMOS current amplifier is presented which employs a novel class AB current output stage with high drive capability and reduced harmonic distortion. The amplifier has a DC gain and a gain-bandwidth product of 95 dB and 8 MHz, respectively. Moreover, it delivers an output current of 28 mAp-p with a -55-dB THD into a load resistance of 100 Ω. The amplifier was fabricated in a 1.2 μm process, uses a 5 V power supply and dissipates 15 mW of DC power
Keywords :
CMOS analogue integrated circuits; harmonic distortion; power amplifiers; 1.2 micron; 15 mW; 28 mA; 5 V; 95 dB; CMOS power amplifier; class AB current output stage; current amplifier; current-mode power amplifier; harmonic distortion reduction; high drive capability; Circuits; Drives; Harmonic distortion; High power amplifiers; Impedance; Mirrors; Power amplifiers; Transconductance; Variable structure systems; Voltage;
Conference_Titel :
Analog and Mixed IC Design, 1997. Proceedings., 1997 2nd IEEE-CAS Region 8 Workshop on
Conference_Location :
Baveno
Print_ISBN :
0-7803-4240-2
DOI :
10.1109/AMICD.1997.637196
