Title :
A rail-to-rail 1-volt CMOS opamp
Author :
Bahmani, Faramarz ; Fakhraie, S.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tehran Univ., Iran
Abstract :
A rail-to-rail 1-volt only, full-CMOS opamp is presented. The opamp has a complementary PMOS/bulk-driven input stage and a class AB output stage, which provide both input and output rail-to-rail operation. HSPICE simulations are performed using BSIM 3.3 models of a 0.8 μm CMOS process. This opamp has a DC gain of 45.1 dB, unity-gain bandwidth of 1.7 MHz and phase margin of 63.4.
Keywords :
CMOS analogue integrated circuits; SPICE; circuit simulation; integrated circuit design; integrated circuit modelling; operational amplifiers; 0.8 micron; 1 V; 1.7 MHz; 45.1 dB; BSIM 3.3 models; CMOS opamp; CMOS process; DC gain; HSPICE simulations; class AB output stage; complementary PMOS/bulk-driven input stage; input rail-to-rail operation; opamp; output rail-to-rail operation; phase margin; rail-to-rail voltage; unity-gain bandwidth; Analog circuits; CMOS process; Circuit simulation; Fabrication; MOSFETs; Mirrors; Rail to rail operation; Semiconductor device modeling; Threshold voltage; Very large scale integration;
Conference_Titel :
Microelectronics, 1999. ICM '99. The Eleventh International Conference on
Print_ISBN :
0-7803-6643-3
DOI :
10.1109/ICM.2000.884844
