Title :
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
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;
Conference_Titel :
Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on
Conference_Location :
Lafayette, LA
Print_ISBN :
0-7803-2428-5
DOI :
10.1109/MWSCAS.1994.519206
