Description

New applications for linear output Hall effect sensors, such as displacement and angular position, require high accuracy in conjunction with redundant outputs. The Allegro A1359 programmable, linear, Hall effect sensor IC has been designed specifically to achieve both goals. The features associated with this linear device make it ideal for use in automotive and industrial applications requiring high accuracy, and this temperature-stable device operates across an extended temperature range: –40°C to 150°C.

Features and Benefits

• Dual tracking outputs: analog voltage output and pulse width modulated (PWM) output

• Matched analog and PWM outputs enable user to detect various output error conditions

• Factory-programmed offset, sensitivity, and polarity

• Sensitivity temperature coefficient (TC) and QVO/QD temperature coefficient programmed at Allegro® for improved accuracy

• High speed chopping scheme minimizes quiescent voltage output (QVO) drift across temperature

• Temperature-stable QVO and sensitivity

• Output voltage clamps provide short circuit diagnostic capabilities

• Wide ambient temperature range: –40°C to 150°C

• Immune to mechanical stress

• Enhanced EMC performance for stringent automotive applications