A low-voltage √x floating-gate MOS integrator

Author

Rodriguez, Esther O. ; Yufera, Alberto ; Rueda, Adoracion

Author_Institution

Inst. de Microelectron., Centro Nacional de Microelectron., Seville, Spain

Volume

1

fYear

2000

fDate

2000

Firstpage

184

Abstract

In this paper, the design and simulation results of an IV integrator using floating gate MOS (FGMOS) transistor techniques is presented. Combining FGMOS working in strong and in weak inversion a current-mode companding integrator is proposed implemented in a standard CMOS process is able to work with very low supply voltage. It has application in audio signal processing. Simulation results show a very low power consumption (1.3 μW), low frequencies below 5 Hz feasible, and a dynamic range of 55 dB for a maximum THD=1.2%. The gain of the integrator is adjustable in more than 2 decades

Keywords

analogue processing circuits; audio signal processing; compandors; current-mode circuits; integrating circuits; low-power electronics; 1.3 muW; FGMOS transistor techniques; IV integrator; audio signal processing; current-mode companding integrator; dynamic range; floating-gate MOS integrator; low-voltage circuits; power consumption; weak inversion; Capacitance; Capacitors; Circuits; Differential equations; Integral equations; Nonlinear equations; Power supplies; Threshold voltage; Transconductance; Virtual colonoscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on

Conference_Location

Geneva

Print_ISBN

0-7803-5482-6

Type

conf

DOI

10.1109/ISCAS.2000.857058

Filename

857058