Freiburg, GermanyMicronas has added two members to its varioHAL family of fully-integrated Hall-effect sensors that feature digital interfaces, enabling robust and reliable data transfer in harsh automotive environments.
The HAL 2830 and HAL 2850 include a microcontroller, a temperature sensor, advanced on-chip compensation, and a digital output format. The HAL 2850 features a PWM (Pulse-Width Modulated) interface, while the HAL 2830 has a SENT interface used specifically for low-cost automotive sensors in high-noise environments.
The HAL 2850 and HAL 2830 offer 12-bit accuracy, helping designers manage power train applications more precisely. Internally, both devices are fully digital and can be programmed with a 12-bit customer serial number. The devices have industry-standard open-drain outputs, but offer slew-rate control on these to reduce EMI (Electro-Magnetic Interference) problems. In addition, the HAL 2830 offers a temperature measurement capability.
The HAL 2830 and HAL 2850 sensors are produced in a submicron CMOS technology. They are offered in a TO-92UT package rated for use from -40°C to +170°C.
Pricing: In 10K units is less than $2.
Datasheets: HAL 2830 and HAL 2850.