The HAL 1821/1822/1823 are new members of the linear Hall-effect sensor family HAL 182x, offering excellent performance/price trade-off. They are universal magnetic field sensors with a ratiometric, linear analog output. The members of the sensor family can be used for magnetic field measure ments, current measurements and detection of any mechanical movement. Very accurate angle measurements or distance measurements can also be carried out. The sensors are very robust and can be used in harsh electrical and mechanical environments.

FEATUREs
♦ Linear Hall-effect sensor with ratiometric analog output
♦ Temperature and stress stable quiescent output voltage
♦ Very accurate sensitivity and offset
♦ Customized versions possible
♦ On-chip temperature compensation
♦ Active offset compensation
♦ Operates from –40 °C up to 170 °C junction temperature
♦ Operates from 4.5 V up to 5.5 V supply voltage
♦ Operates with static magnetic fields and dynamic magnetic fields up to 1 kHz
♦ Overvoltage and reverse-voltage protection on VDD pin
♦ Magnetic characteristics are extremely robust against mechanical stress.
♦ Short-circuit protected push-pull output
♦ EMC and ESD optimized design
 
Major Applications
♦ Due to the sensor’s versatile programming characteristics and its high accuracy, the HAL 1821/1822/1823 is the optimal system solution for applications such as:
   – Linear position measurements
   – Angle sensors
   – Distance measurements
   – Current measurements
   – Magnetic field measurements