AS5601-ASOT

AS5601 12-Bit Programmable Contactless Encoder The AS5601 is an easy-to-program magnetic rotary position General Description sensor with incremental quadrature (A/B) and 12-bit digital outputs. Additionally, the PUSH output indicates fast airgap changes between the AS5601 and magnet which can be used to implement a contactless pushbutton function in which the knob can be pressed to move the magnet toward the AS5601. This AS5601 is designed for contactless encoder applications, and its robust design rejects the influence of any homogenous external stray magnetic fields. Based on planar Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) from an external magnet. The industry-standard IC interface supports user programming of non-volatile parameters in the AS5601 without requiring a dedicated programmer. The AS5601 also provides a smart low-power mode which automatically reduces power consumption Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS5601, 12-bit Programmable Contactless Encoder are listed below: Figure 1: Added Value of Using AS5601 Benefits Features Highest reliability and durability Contactless angle measurement insensitive to dust and dirt Simple user-programmable zero position and device Simple programming configuration Flexible choice of the number of A/B Quadrature output configurable from 8 up to 2048 positions pulses per revolution Contactless pushbutton functionality Pushbutton output by detecting sudden airgap changes Low power consumption Automatic entry into low-power mode Easy setup Automatic magnet detection Small form factor SOIC-8 package Robust environmental tolerance Wide temperature range: -40C to 125C ams Datasheet Page 1 v1-07 2016-Sep-09 Document FeedbackAS56 01 Gene ral Des c rip t ion Applications The AS5601 is ideally suited for: Encoder replacement Contactless rotary knobs with push buttons Other angular position measurement solutions Block Diagram The functional blocks of this device are shown below: Figure 2: AS5601 Block Diagram VDD3V3 Register Setting SDA IC Low-Dropout One-Time (LDO) Regulator Programmable VDD5V SCL (internal load only) (OTP) Memory Analog Hall Sensors Front-End A ATAN A/B Quadrature AFE 12-bit A/D (CORDIC) Output Encoder B Automatic Dynamic Gain Control Magnitude PUSH (AGC) Monitoring Magnetic Core AS5601 GND Page 2 ams Datasheet Document Feedback v1-07 2016-Sep-09