Title :
Wide-common-mode-range and high-CMRR CMOS OTA operable in both weak and strong inversion regions
Author :
Tanno, Koichi ; Tanaka, Hisashi ; Miwa, Ryota ; Tamura, Hiroki
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Miyazaki, Miyazaki
fDate :
Nov. 30 2008-Dec. 3 2008
Abstract :
In this paper, an OTA can be operated in both weak and strong inversion regions is presented. The proposed OTA has advantages: wide-common-mode-input-range, high-CMRR and low-voltage-operation. The proposed OTA is evaluated through Star-HSPICE with 0.18 mum CMOS device parameters (LEVEL53). Simulations results demonstrate a CMRR of 93 dB, a common-mode-input-range of 65 mV to 720 mV and a current consumption of 1.2 muA when VDD=0.8 V.
Keywords :
CMOS analogue integrated circuits; SPICE; operational amplifiers; Star-HSPICE; current 1.2 muA; high-CMRR CMOS OTA; inversion regions; size 0.18 mum; voltage 65 mV to 720 mV; wide-common-mode-range; Analog circuits; CMOS technology; Circuit simulation; Electric variables control; Low voltage; Mirrors; Nonlinear filters; Operational amplifiers; Resistors; Transconductance;
Conference_Titel :
Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on
Conference_Location :
Macao
Print_ISBN :
978-1-4244-2341-5
Electronic_ISBN :
978-1-4244-2342-2
DOI :
10.1109/APCCAS.2008.4746236
