Design optimization of a current source for microstimulator applications

Author

St-Amand, Robert ; Savaria, Yvon ; Sawan, Mohamad

Author_Institution

Ecole Polytech. de Montreal, Que., Canada

Volume

1

fYear

1994

fDate

3-5 Aug 1994

Firstpage

129

Abstract

The main goal of our study is the design of a current source (CS) based on a miniaturized digital-to-analog converter (DAC). The primary application of this device is a wide range of neuromuscular implantable microstimulators. Special attention is paid to design a flexible, compact and energy efficient circuit. A new design method is thus proposed. This method was applied to the design of a 5-bit, 3 mA peak current source, whose active circuit area is only 0.01 mm². This current source has been submitted for implementation in the 1.2 μm CMOS technology offered by the Canadian Microelectronics Corporation

Keywords

CMOS integrated circuits; bioelectric phenomena; constant current sources; digital-analogue conversion; mixed analogue-digital integrated circuits; muscle; neurophysiology; prosthetic power supplies; CMOS technology; biomedical electronics; current source; design optimization; digital-to-analog converter; microstimulator applications; miniaturized DAC; neuromuscular implantable microstimulators; Active circuits; CMOS technology; Design methodology; Design optimization; Digital-analog conversion; Energy consumption; Energy efficiency; Flexible printed circuits; Implants; Neuromuscular;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on

Conference_Location

Lafayette, LA

Print_ISBN

0-7803-2428-5

Type

conf

DOI

10.1109/MWSCAS.1994.519206

Filename

519206