Title :
Constant transconductance rail to rail amplifier
Author :
Danchiv, Andrei ; Bodea, Mircea ; Dan, Claudius
Author_Institution :
Electron. & Telecomm. Dept., Politehnica Univ. of Bucharest, Romania
Abstract :
This work presents an analytical model for a CMOS rail to rail gain stage transconductance dependence on the common mode input voltage. The complete transconductance RR amplifier schematic is composed by three functional blocks: the input stage, the summing stage and the bias circuit. This analysis uses MOS transistor basic model. The results are checked by SPICE simulation.
Keywords :
CMOS integrated circuits; MOSFET; SPICE; Zener diodes; operational amplifiers; CMOS transconductance rail-rail gain stage amplifier; MOS transistor basic model; SPICE simulation; common mode input voltage; Analytical models; Circuit analysis; Circuit simulation; MOSFETs; Rail to rail amplifiers; Rail to rail inputs; SPICE; Semiconductor device modeling; Transconductance; Voltage;
Conference_Titel :
Semiconductor Conference, 2004. CAS 2004 Proceedings. 2004 International
Print_ISBN :
0-7803-8499-7
DOI :
10.1109/SMICND.2004.1402996
