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

Volume

1

fYear

2003

fDate

25-28 May 2003

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205571

Filename

1205571