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AS5045

ams
Part Number AS5045
Manufacturer ams
Description 12-Bit Programmable Magnetic Rotary Position Sensor
Published Aug 31, 2020
Detailed Description AS5045 12-Bit Programmable Magnetic Rotary Position Sensor General Description The AS5045 is a contactless magnetic po...
Datasheet PDF File AS5045 PDF File

AS5045
AS5045

Overview
AS5045 12-Bit Programmable Magnetic Rotary Position Sensor General Description The AS5045 is a contactless magnetic position sensor 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 two-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 positions per revolution.
This digital data is available as a serial bit stream and as a PWM signal.
An internal voltage regulator allows the AS5045 to operate at either 3.
3 V or 5 V supplies.
Ordering Information and Content Guide appear at end of datasheet.
Figure 1: Added Value of Using AS5045 Key Benefits & Features The benefits and features of AS5045, 12-Bit Programmable Magnetic Rotary Position Sensor are listed below: Benefits Features • Highest reliability and durability in harsh environments • Great flexibility during assembly • Operation safety • Lower material cost (no magnetic shielding needed) • Contactless absolute angle position measurement • User programmable zero position • Diagnostic modes for magnet detection and power supply loss • Immune to external magnetic stray fields • Two digital 12-bit absolute outputs: • Serial interface and • Pulse width modulated (PWM) output • Failure detection mode for magnet placement monitoring and loss of power supply • “Red-Yellow-Green” indicators display placement of magnet in Z-axis Datasheet, Public [v3-00] 2022-Mar-03 Page 1 Document Feedback Figure 2: AS5045 Block Diagram AS5045 − General Description • Serial read-out of multiple interconnected AS5045 devices using Daisy Chain mode • Tolerant to magnet misalignment and airgap variations • Wide temperature range: - 40ºC to 125ºC • Small Pb-free package: SSOP-1...


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