HIgh Precision, Output Pin Programmable Linear Hall Effect Sensors
Description
The A1373 and A1374 high precision linear Hall effect sensors are sensitive, temperature stable, linear devices with externally programmable features. This device family incorporates a chopper-stabilized amplifier, voltage regulator, programming logic, and an output amplifier on a single IC. The patented dynamic offset cancellation used with a chopper-stabilization technique provides extremely low offset and minimal temperature drift. A high frequency clock is used for chopping, to ensure high frequency signal processing capability. The A1373 and A1374 are ideal for use in automotive and industrial linear position-sensing applications that require increased reliability and accuracy over conventional contacting-potentiometer solutions. Key applications include: throttle position sensors, pedal position sensors, and suspension height sensors.
Features and Benefits
▪ Output pin programming
▪ Field-programmable for optimal application integration
▪ Selectable coarse and fine gain and quiescent output voltage
▪ Selectable sensitivity temperature coefficient
▪ Selectable output clamp voltage level, including no clamp rail-to-rail
▪ Selectable output polarity
▪ Unipolar or bipolar operation
▪ Ratiometric sensitivity, clamps, and quiescent output voltage
▪ Chopper-stabilized Hall technique
▪ Wide operating temperature range
▪ On-chip regulator for over/under voltage protection
▪ On-chip regulator provides EMI robustness
▪ Wide lead-spacing with KB package