AS5215 AB ams

AS5215 Programmable 360 Magnetic Angle Encoder with Buffered Sine & Cosine Output Signals The AS5215 is a redundant, contactless rotary encoder sensor General Description for accurate angular measurement over a full turn of 360 and over an extended ambient temperature range of -40C to 150C. Based on an integrated Hall element array, the angular position of a simple two-pole magnet is translated into analog output voltages. The angle information is provided by means of buffered sine and cosine voltages. This approach gives maximum flexibility in system design, as it can be directly integrated into existing architectures and optimized for various applications in terms of speed and accuracy. With two independent dies in one package, the device offers true redundancy. Usually the bottom die, which is exposed to slightly less magnetic field is employed for plausibility check. An SSI Interface is implemented for signal path configuration as well as a one time programmable register block (OTP), which allows the customer to adjust the signal path gain to adjust for different mechanical constraints and magnetic field. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS5215, Programmable 360 Magnetic Angle Encoder with Buffered Sine & Cosine Output Signals are listed below: Figure 1: Added Value of Using AS5215 Benefits Features Contactless high resolution rotational position encoding Highest reliability and durability over a full turn of 360 degrees Simple programming Simple user-programmable over serial interface (SSI) High precision analog output Buffered sine and cosine output signals Very low average power consumption Low power mode Serial read-out of multiple interconnected devices using Easy setup Daisy Chain mode Fully automotive qualified Fully automotive qualified to AEC-Q100, grade 0 ams Datasheet Page 1 v2-01 2016-Mar-03 Document FeedbackAS52 15 Gene ral Des c rip t ion Benefits Features Small form factor Thin punched 32-pin MLF (7x7mm) package Robust environmental tolerance Wide temperature range: -40C to 150C Applications The AS5215 is ideal for Electronic Power Steering systems and general purpose for automotive or industrial applications in microcontroller-based systems. Block Diagram The functional blocks of this device are shown below: Figure 2: AS5215 Block Diagram OTP Register PROG AS5215 Digital Part CS VDD POWER SSI Interface MANAGEMENT DCLK VSS DIO BUFFER Stage SINP/SINN SINN/SINP/CM SIN BUFFER Stage COSP/COSN Hall Array & COSN/COSP/CM COS Frontend Amplifier Note(s): 1. This Block Diagram presents only one die. Page 2 ams Datasheet Document Feedback v2-01 2016-Mar-03