高分辨率磁旋转编码器AS5145

产品品牌：

安明斯AMS

产品型号：

AMS5145

制作工艺：

集成

输出信号：

其它

AS5145磁性旋转编码器 IC 是一款非接触式的完整系统级芯片，可在一圈 360° 范围内提供分辨率达 0.0879° 的角度测量，即每转 4, 096 个位置。使用一个简单的串行接口或 PMW 信号即可读取该数字角度数据。另外，该器件采用改进的插值算法，可实现增量正交输出模式，并能性编程为 10 位至 12 位分辨率。由于具有更佳的噪声特性，进一步得到提升。

除了支持用户化零位编程、芯片 ID 和帮助磁铁正确定位的诊断功能等奥地利微电子编码器系列的所有标准功能外，AS5145 还能提供一种与外部电路同步的特殊功能，以及正弦/余弦数字输出模式。当该模式激活时，将输出 16 位正弦和 16 位余弦双通道数字数据，并在外部进行计算。

Description

The AS5145 is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360°. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device. To measure the angle, only a simple 2-pole magnet, rotating over the center of the chip, is required. The magnet may be placed above or below the IC. The absolute angle measurement provides instant indication of the magnet's angular position with a resolution of 0.0879° = 4096 postitions per revoloution. This digital data is available as a serial bit stream and as a PWM signal. An internal voltage regulator allows the AS5145 to operate at either 3.3V or 5V supplies.

Key Features 

Contactless high resolution rotational position encoding over a full turn of 360° 2 digital 12-bit absolute outputs: Serial interface and Pulse Width Modulated (PWM) outputs 3 incremental outputs Quadrature A/B (10 or 12 bit) and Index output signal User programmable zero position Failure detection mode for magnet placement monitoring and loss of power supply "Red-Yellow-Green"indicators display placement of magnet in Z-axis Serial read-out of multiple interconnected AS5145 devices using Daisy Chain mode Tolerant to magnet misalignment and arigap variations Wide temperature range: -40°C to +150°C Fully automotive AEC-Q100 qualified, grade 0 Small Pb-free package: SSOP16 (5.3mm x 6.2mm)

 

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