New angle sensor ICs have ultra-fast response time for fast data transmission

Allegro MicroSystems Europe has introduced two new 0-degree to 360-degree angle sensor ICs that provide contactless high-resolution angular position information based on magnetic CVH technology. The company’s A1333 and A1339 devices include a SoC architecture that includes: a CVH front end, digital signal processing, and supports multiple digital output formats, including their first motor commutation outputs (UVW), and encoder outputs (A, B, I) for angle sensor ICs that can operate at either 3.3 V or 5 V. The devices are offered in both single and dual die versions for systems that require redundant sensors. They both include on-chip EEPROM technology, capable of supporting up to 100 read/write cycles, for flexible end-of-line programming of calibration parameters. Both devices are ideal for automotive applications requiring 0-degree to 360-degree angle measurements, such as motor position measurements for steering and braking systems and other high speed actuators for pumps and transmissions that require low latency and high resolution. Both the single and the dual die devices were designed in accordance with ISO26262:2011 requirements for hardware development (pending assessment). The single die versions were targeted to meet ASIL B requirements and the dual die products were designed to meet ASIL D requirements when integrated and used in conjunction with the appropriate system level control. The stacked die nature of the dual die assembly provides better channel to channel matching than more traditional side by side assembly techniques. This is a key parameter for safety critical applications where the output of the two sensors is compared to insure that the system is operating safely.