Title :
High-frequency 750mV operational amplifier standard bulk CMOS process
Author :
Tang, Yonghui ; Geiger, Randall L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
A 750 mV operational amplifier was designed in a standard 0.5 μm 5 V CMOS process using a threshold voltage tuning technique. It exhibits 62 dB DC gain, a gain bandwidth product of 3.2 MHz and a power consumption of only 38 μW. Compared to its 5 V counterpart, biased at the same current level, the new amplifier maintains nearly the same gain bandwidth product when driving a 15 pF load but consumes less than 20% of the power with over a factor of 6 reduction in the supply voltage.
Keywords :
CMOS analogue integrated circuits; low-power electronics; operational amplifiers; radiofrequency integrated circuits; 0.5 micron; 15 pF; 38 muW; 5 V; 62 dB; 750 mV; CMOS; gain bandwidth product; high-frequency operational amplifier; low voltage op amp; supply voltage reduction; threshold voltage tuning technique; Analog circuits; Bandwidth; CMOS process; Capacitors; Circuit optimization; Dynamic voltage scaling; Low voltage; MOSFET circuits; Operational amplifiers; Threshold voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 2003. Proceedings of the IEEE 2003
Print_ISBN :
0-7803-7842-3
DOI :
10.1109/CICC.2003.1249487
