Title :
1.5 GHz OPAMP in 120nm digital CMOS
Author :
Schlögl, F. ; Zimmermann, Horst
Author_Institution :
Inst. fur elektrische Mess- und Schaltungstechnik, Tech. Univ. Wien, Austria
Abstract :
A high-speed operational amplifier, employing only regular-threshold devices in a 120 nm digital CMOS technology, with a two-signal-path topology, is presented. A single-stage high-frequency path allows a transit frequency of 1.5 GHz and a two-stage low-frequency path increases the DC gain to 40 dB. A new near-rail-to-rail class AB output stage is achieved with two local common-mode feedback loops.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; feedback amplifiers; operational amplifiers; 1.5 GHz; 120 nm; 40 dB; OPAMP; digital CMOS; high-speed operational amplifier; local common-mode feedback loops; near-rail-to-rail class AB output stage; single-stage high-frequency path; transit frequency; two-signal-path topology; two-stage low-frequency path; Breakdown voltage; CMOS technology; Capacitance; Circuits; Digital systems; Frequency; Operational amplifiers; Power supplies; Threshold voltage; Transistors;
Conference_Titel :
Solid-State Circuits Conference, 2004. ESSCIRC 2004. Proceeding of the 30th European
Print_ISBN :
0-7803-8480-6
DOI :
10.1109/ESSCIR.2004.1356662
