A1334: Precision Hall-Effect Angle Sensor IC

This part is in production but has been determined to be LAST TIME BUY. This classification indicates that the product is obsolete and notice has been given. Sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available. Date of status change: July 2, 2018. Deadline for receipt of LAST TIME BUY orders: December 1, 2018.

推荐的替换：A1338家庭. For existing customer transition, and for new customers or new applications,contact Allegro Sales.

A1334是360°角传感器IC，其提供基于磁圆形垂直霍尔（CVH）技术的非接触式高分辨率角位置信息。它具有片上系统（SOC）架构，包括：CVH前端，数字信号处理和数字（SPI）输出。A1334非常适用于需要高速0°至360°角测量的汽车应用，例如电子亚博尊贵会员动力转向（EPS）和节流系统。

The A1334 supports a Low RPM mode for slower rate applications and a High RPM mode for high-speed applications. High RPM mode is for applications that require higher refresh rates to minimize error due to latency. Low RPM mode is for applications that require higher resolution operating at lower angular velocities.

As part of its signal processing functions, the A1334 includes automotive-grade temperature compensation to provide accurate output over the full operating temperature and voltage ranges. The A1334 also includes EEPROM technology for end-of-line calibration.

A1334可作为14针TSSOP中的单芯片，或在24针TSOP中的双模。两个包装都是铅（Pb），免费使用100％哑光锡引线框架电镀。

• Contactless 0° to 360° angle sensor IC, for angular position, rotational speed, and direction measurement
• Available with either a single die or dual independent die housed within a single package
• Circular Vertical Hall (CVH) technology provides a single-channel sensor system, with air-gap independence
• 12-bit resolution possible in low RPM mode, 10-bit resolution in high RPM mode
• 角度刷新率（输出速率）通过EEPROM编程可配置25到3200μs
• Capable of sensing magnet rotational speeds in excess of 7600 rpm
• SPI interface allows use of multiple independent sensors for applications requiring redundancy
• EEPROM programmable angle reference (0°) position and rotation direction (CW or CCW)
• 绝对最大V._CCof 26.5 V for automotive battery-powered applications