Title :
A programmable 1.5 V CMOS class-AB operational amplifier with hybrid nested Miller compensation for 120 dB gain and 6 MHz UGF
Author :
Eschauzier, Ruud G.H. ; Hogervorst, Ron ; Huijsing, Johan H.
Author_Institution :
Fac. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
12/1/1994 12:00:00 AM
Abstract :
The paper presents a rail-to-rail class-AB operational amplifier in a standard vth=0.6 V CMOS technology operating at 1.5 V. A hybrid nested Miller compensation technique yields 6 MHz unity gain frequency at 300 μA supply current, 120 dB gain and programmability. Operation down to 1.0 V at 15 μA is possible with 300 kHz UGF. The die area of the chip is 0.05 mm2 (70 mil2)
Keywords :
CMOS analogue integrated circuits; compensation; operational amplifiers; 1.5 V; 120 dB; 300 muA; 6 MHz; CMOS class-AB opamp; hybrid nested Miller compensation; operational amplifier; programmable op amp; rail-to-rail amplifier; CMOS technology; Circuits; Current supplies; Gain; Low voltage; Operational amplifiers; Paper technology; Rail to rail amplifiers; Rail to rail operation; Threshold voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
