Title :
A Novel Dynamic Current Boosting Technique for Enhancement of Settling Time and Elimination of Slewing of CMOS Amplifiers
Author :
Mehra, Anu ; Gupta, Arpan ; Patil, Swapnil ; Mehra, Anu ; Sahoo, Sujit Kumar
Author_Institution :
Birla Inst. of Technol. & Sci., Pilani, India
Abstract :
A very simple technique to achieve low settling time is presented. It is based on the combination of class AB differential input stages, local common-mode feedback (LCMFB), and clamping circuit which provides additional current boosting, keeping the gain-bandwidth product (GBW) nearly constant. The slew enhancement is provided by an auxiliary circuit which is activated only during transients. The design is based on the ldquoTSMC 180 nm CMOS technologyrdquo.
Keywords :
CMOS analogue integrated circuits; amplifiers; nanoelectronics; CMOS amplifiers; CMOS technology; auxiliary circuit; clamping circuit; class AB differential input stages; dynamic current boosting technique; gain-bandwidth product; local common-mode feedback; slew enhancement; slewing; Boosting; CMOS technology; Capacitors; Circuit topology; Clamps; Communications technology; MOS devices; Operational amplifiers; Pulse amplifiers; Time sharing computer systems;
Conference_Titel :
Advances in Recent Technologies in Communication and Computing, 2009. ARTCom '09. International Conference on
Conference_Location :
Kottayam, Kerala
Print_ISBN :
978-1-4244-5104-3
Electronic_ISBN :
978-0-7695-3845-7
DOI :
10.1109/ARTCom.2009.169
