Texas Instruments TIDA-00642 Manual

TIDA-00642 Foot controller Using Analog Hall Sensor

Design Overview

TIDA-00642 uses analog Hall Sensor DRV5053
and OpAmp LMV612 to achieve a foot controller
circuit with approximate linear response and
adjustable quiescent offset and the full scale
output range.

Design Resources

TIDA-00642 Design Folder
DRV5053 Product Folder
LMV612 Product Folder
OpAmp Application Guide

Design Features


Approximate linear response of the
position to output voltage

Adapt with wide magnet types and range
of flux density

1. Introduction

Analog Hall sensor can be used as position or angular sensing with the benefits of no contact and
wearing, high stability and repeat positioning accuracy and wide sensibility range. There are normally
two major methods of the configuration of the magnet and the Hall senor, non-linear and linear way.
This design gives introduction of the two methods and focuses on the linear configuration, and gives
OpAmp circuit design to achieve wide adaption to different applications.

0 to 5V full scale output ability

Adjustable quiescent offset voltage at
zero magnet field

Adjustable wide range system sensitivity

Low power RRIO amplifier stage

Cost effective

Featured Applications


Foot controller

Industrial control stick

Industrial foot pedal

Key stroke monitor

General position or angular sensing
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