Title :
A novel 1.8V rail-to-rail CMOS operational amplifier
Author :
Zhu, Zhangming ; Yang, Yintang ; Zhai, Yan
Author_Institution :
Microelectron. Inst., Xidian Univ., Xi´´an, China
Abstract :
Based on TSMC 0.25 μm CMOS process, a 1.8V rail-to-rail operational amplifier with a constant gm input stage is proposed with low-power and high gain. The whole circuit is implemented in TSMC 0.25 μm 2P5M CMOS technology. With a single power supply of 1.8V in simulation, it shows that the rail-to-rail operational amplifier has an open loop gain of 108.6 dB phase margin of 57.2 degree and unit gain bandwidth of 5MHz, and the total power dissipation is 0.23mW.
Keywords :
CMOS integrated circuits; low-power electronics; operational amplifiers; 0.23 mW; 0.25 micron; 1.8 V; 108.6 dB; 5 MHz; TSMC CMOS process; constant transconductance; rail-to-rail CMOS operational amplifier; CMOS process; CMOS technology; Circuit simulation; Gain; Operational amplifiers; Power amplifiers; Power supplies; Rail to rail amplifiers; Rail to rail inputs; Rail to rail operation;
Conference_Titel :
Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on
Print_ISBN :
0-7803-8511-X
DOI :
10.1109/ICSICT.2004.1436864
