Title :
A novel topology in RNMC amplifiers with single miller compensation capacitor
Author :
Jalalifar, Majid ; Yavari, Mohammad ; Raissi, Farshid
Author_Institution :
Dept. of Electr. Eng., K.N. Toosi Univ. of Technol., Tehran
Abstract :
This paper presents a reversed single active Miller compensation (RSAMC) technique for low-voltage and large capacitive load three-stage amplifiers. In this scheme, only one active compensation capacitor is employed. The main advantages of the proposed compensation method are the enhanced unity gain bandwidth and reduced silicon die area of the amplifier compared to those of the existing proposed techniques in reversed nested Miller compensation (RNMC) scheme. The simulation results with a 0.18 mum standard CMOS process achieve 27 MHz unity gain bandwidth and 60 degree phase margin for the proposed RSAMC amplifier, while driving 500 pF load from a single 1.5 V power supply.
Keywords :
CMOS analogue integrated circuits; amplifiers; capacitors; network topology; CMOS process; RNMC amplifiers; active compensation capacitor; bandwidth 27 MHz; capacitance 500 pF; large capacitive load three-stage amplifiers; low-voltage amplifiers; reversed nested Miller compensation; single Miller compensation capacitor; size 0.18 mum; unity gain bandwidth; voltage 1.5 V; Bandwidth; CMOS technology; Capacitors; Circuits; Frequency; Power amplifiers; Power supplies; Resistors; Topology; Voltage;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541413
