Title :
Exploiting hyperbolic functions to increase linearity in low-voltage floating-gate transconductance amplifiers
Author :
Berg, Y. ; Aunet, S. ; Mess, O. ; Lomsdalen, J. ; Hovin, M.
Author_Institution :
Dept. of Inf., Oslo Univ., Norway
Abstract :
In this paper we present an ultra low-voltage (ULV) floating-gate (FG) transconductance amplifier The amplifier can operate at supply voltages down to 0.3 V in a standard digital double poly CMOS process. The amplifier consists of three sub-circuits, the single input analog FG inverter, the additive (double input) analog FG inverter with tunable gain and a FG digital inverter. Simulated data for the transconductance amplifier is provided. Preliminary measurements of the sub-circuits are provided.
Keywords :
CMOS integrated circuits; gain control; harmonic distortion; mixed analogue-digital integrated circuits; operational amplifiers; 0.3 V; analog floating-gate inverter; digital double poly CMOS process; floating-gate digital inverter; floating-gate transconductance amplifier; hyperbolic functions; linearity improvement; tunable gain; ultra low-voltage transconductance amplifier; CMOS process; CMOS technology; Capacitance; Circuit simulation; Cutoff frequency; Inverters; Linearity; MOS devices; Threshold voltage; Transconductance;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205571
