Title :
On the self-calibration of stochastic magnetic sensor arrays
Author :
Rohrer, Stefan ; Reifschneider, Norbert ; Hentschke, Siegbert
Author_Institution :
Univ. Juan XXIII, Chepen, Peru
Abstract :
A new autocalibration method is proposed for digital magnetic sensor arrays which are highly sensitive to process variations. By using a modified digitally controlled charge pump there is no need for extra controlling voltages, floating control gates or laser trimming. The charge pump is driven by an adaptive filter to find the optimum threshold voltages for the sensor flip-flops
Keywords :
Hall effect transducers; adaptive filters; calibration; magnetic sensors; adaptive filter; autocalibration method; digitally controlled charge pump; process variations; self-calibration; sensor flip-flops; stochastic magnetic sensor arrays; threshold voltages; Adaptive filters; Charge pumps; Digital control; Magnetic sensors; Optical control; Pump lasers; Sensor arrays; Stochastic processes; Threshold voltage; Voltage control;
Conference_Titel :
Devices, Circuits and Systems, 1998. Proceedings of the 1998 Second IEEE International Caracas Conference on
Conference_Location :
Isla de Margarita
Print_ISBN :
0-7803-4434-0
DOI :
10.1109/ICCDCS.1998.705867
