A1309LLHLX-9-T
Overview
The A1309LLHLX-9-T is a linear Hall-effect sensor IC designed for high-accuracy applications requiring an analog voltage output proportional to magnetic flux density. It operates on a 5V supply and features a high-speed chopping scheme that minimizes quiescent voltage output drift across its wide -40 to 150 degree Celsius temperature range.
Why Choose This Part
This sensor offers enhanced EMC performance for automotive environments and includes output voltage clamps for short-circuit diagnostic capabilities. The QVO temperature coefficient is factory-programmed at Allegro to ensure high stability and precise recoverability after thermal cycling.
Applications
Key Specifications
Getting Started
To evaluate this part, connect VCC to a stable 5V supply and ground the GND pin while monitoring the VOUT pin with an oscilloscope or MCU ADC. Ensure a 0.1uF bypass capacitor is placed close to the VCC and GND pins to minimize noise on the sensitive analog output.



