A1688：双线，真正的零速，高精度传感器IC

A1688是基于霍尔效应的集成电路（IC），为两种线应用中的真正零速数字环磁铁和齿轮齿感测提供了一种用户友好的解决方案。亚博尊贵会员A1688在UB封装中提供，可将IC和高温陶瓷电容集成在单个超模封装中。集成电容提供增强的EMC性能，具有减少的外部元件。

The integrated circuit incorporates a dual-element Hall-effect circuit and signal processing that switches in response to differential magnetic signals created by magnetic encoders, or, when properly backbiased with a magnet, from ferromagnetic targets. The device contains a sophisticated digital circuit that reduces magnet and system offsets, calibrates the gain for air gap independent switchpoints, and provides true zero-speed operation.

通过偏移和增益调整的组合，通过使用运行模式校准方案在整个操作中进行信号优化。运营模校准提供来自环境效果的免疫，例如感测到的目标或突然的气隙变化的微观振荡。

The regulated current output is configured for two-wire interface circuitry and is ideally suited for obtaining speed information in wheel speed applications. The Hall element spacing is optimized for high resolution, small diameter targets. The package is lead (Pb) free, with 100% matte-tin leadframe plating.

• 集成电容可降低外部EMI保护组件
• 宽阔的引线有助于易于装配
• 真正的零速操作
• Automatic Gain Control (AGC) for air gap independent switchpoints
• 用于信号处理优化的自动偏移调整（AOA）
• 大型工作空气间隙范围
• Internal current regulator for two-wire operation
• 欠压锁定
• 用于高可靠性的单芯片传感IC
• 片上电压调节器，具有宽的工作电压范围和稳定性，存在各种复合载荷阻抗
• Fully synchronous digital logic with Scan and IDDQ testing