A1373 and A1374 Sensor ICs

The A1373 and A1374 high precision linear Hall effect sensor ICs 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 sensor ICs, pedal position sensor ICs, and suspension height sensor ICs.

• 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