Title :
A 0.8 volt high performance OTA using bulk-driven MOSFETs for low power mixed-signal SOCs
Author :
Rosenfeld, Jonathan ; Kozak, Mucahit ; Friedman, Eby G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rochester Univ., NY, USA
Abstract :
An ultra-low voltage rail-to-rail folded-cascode operational transconductance amplifier (OTA), based on a standard digital 0.18 μm CMOS process, is described in this paper. A bulk-driven MOSFET technique is employed to facilitate a 0.8 V power supply voltage. The gain of the OTA is increased by using auxiliary gain boosting amplifiers, which enable the OTA to achieve an open loop gain of 68 dB while consuming 94 μW, the highest gain achieved to date in bulk-driven amplifiers.
Keywords :
CMOS analogue integrated circuits; differential amplifiers; integrated circuit design; low-power electronics; operational amplifiers; 0.18 micron; 0.8 V; 68 dB; 94 muW; CMOS; auxiliary gain boosting amplifiers; bulk-driven MOSFET; fully differential OTA; high performance OTA; low power mixed-signal SOC; operational transconductance amplifier; rail-to-rail folded-cascode OTA; ultra-low voltage OTA; Boosting; CMOS process; Gain; MOSFETs; Operational amplifiers; Power supplies; Rail to rail amplifiers; Rail to rail operation; Transconductance; Voltage;
Conference_Titel :
SOC Conference, 2003. Proceedings. IEEE International [Systems-on-Chip]
Print_ISBN :
0-7803-8182-3
DOI :
10.1109/SOC.2003.1241503
