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AS5140H

ams
Part Number AS5140H
Manufacturer ams
Description 10-Bit 360-o Programmable Magnetic Rotary Encoder
Published Feb 18, 2015
Detailed Description AS5140H 10-Bit 360º Programmable Magnetic Rotary Encoder For High Ambient Temperatures General Description The AS5140H...
Datasheet PDF File AS5140H PDF File

AS5140H
AS5140H

Overview
AS5140H 10-Bit 360º Programmable Magnetic Rotary Encoder For High Ambient Temperatures General Description The AS5140H is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360º and over an extended ambient temperature range of -40ºC to 150ºC.
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.
35º = 1024 positions per revolution.
This digital data is available as a serial bit stream and as a PWM signal.
Furthermore, a user-programmable incremental output is available.
An internal voltage regulator allows the AS5140H to operate at either 3.
3V or 5V supplies.
The AS5140H is pin-compatible to the AS5040; however it uses low-voltage OTP programming cells with additional programming options.
Ordering Information and Content Guide appear at end of datasheet.
Figure 1: Added Value of Using AS5140H Key Benefits & Features The benefits and features of AS5140H, 10-Bit 360º Programmable Magnetic Rotary Encoder For High Ambient Temperatures are listed below: Benefits No mechanical wear High resolution absolute position sensing Easy to use for motor control Adjustable zero position Features Contactless high resolution rotational position encoding over a full turn of 360º Two digital 10-bit absolute outputs: Serial interface and Pulse width modulated (PWM) output Three incremental output modes: Quadrature A/B and Index output signal, Step / Direction and Index output signal, 3-phase commutation for brushless DC motors User programmable zero / index position ams Datasheet [v1-09] 2018-Feb-20 Page 1 Document Feedback AS5140H − General Description Benefits Features Tolerant to magnet misalignmen...


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