Title :
120nm CMOS OPAMP with 690 MHz fT and 128 dB DC gain
Author :
Schlogl, Franz ; Zimmermann, Horst
Author_Institution :
EMST, TU-Vienna, Vienna, Austria
Abstract :
In this paper, an advancement to compensate multistage operational amplifiers is presented. High-gain and highspeed operational amplifiers can be realized with this approach. One example of such a high-gain amplifier with a unity-gain frequency of 693 MHz and DC gain of 128.8dB is presented. The high-speed settling is mainly reached by dominant Miller compensation via 4 stages.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; UHF integrated circuits; high-speed integrated circuits; operational amplifiers; 120 nm; 128.8 dB; 693 MHz; CMOS OPAMP; Miller compensation; high-gain operational amplifiers; highspeed operational amplifiers; multistage operational amplifiers; unity-gain frequency; CMOS technology; Capacitors; Differential amplifiers; Equations; Feedback; Feedforward systems; Frequency; Gain; Operational amplifiers; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European
Print_ISBN :
0-7803-9205-1
DOI :
10.1109/ESSCIR.2005.1541607
