TDK-Micronas HAL® 1820 Sensors

TDK-Micronas HAL® 1820 Sensors are universal magnetic field sensors with a linear analog output based on the Hall effect. The IC can be used for angle and linear measurements when combined with a rotating or moving magnet. Major characteristics such as field range, sensitivity, offset (output voltage at zero magnetic field), and the temperature coefficients are programmable in non-volatile memory. HAL 1820 sensors are programmable by modulating the supply voltage of the sensor and require no additional programming. The easy programmability allows a two-point calibration by adjusting the output signal directly to the input signal (like mechanical angle, distance, or current). TDK-Micronas HAL 1820 Sensors have a junction temperature range from -40°C to 170°C. These sensors offer a cost-effective alternative for applications needing mechanical adjustment or laser trimming for calibrating the system. Ideal applications are automotive and industrial.

Features

  • Linear Hall-effect sensor with ratiometric analog output
  • Various programmable magnetic characteristics with non-volatile memory
  • Digital signal processing
  • Continuous measurement ranges from ±20mT to ±160mT
  • Temperature characteristics programmable for matching all common magnetic materials
  • Programming via the supply voltage
  • Lock function and built-in redundancy for EEPROM memory
  • Operates from -40°C up to +170°C junction temperature
  • Operates from 4.5V up to 5.5V supply voltage
  • Operates with static magnetic fields and dynamic magnetic fields up to 2.25kHz
  • Overvoltage and reverse-voltage protection on VDD pin
  • Magnetic characteristics are extremely robust against mechanical stress
  • Short-circuit protected output

Applications

  • Contactless potentiometers
  • Rotary position measurement
  • Linear movement
  • Current measurements
  • Level measurements
Pubblicato: 2015-09-15 | Aggiornato: 2022-03-11