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AS5048A

Description
Magnetic Rotary Encoder Sensor
File Size664KB,41 Pages
ManufacturerAMS
Websitehttps://ams.com/zh
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AS5048A Overview

Magnetic Rotary Encoder Sensor

AS5048A/AS5048B
Magnetic Rotary Encoder
(14-Bit Angular Position Sensor)
General Description
The AS5048 is an easy to use 360° angle position sensor with a
14-bit high resolution output.
The IC measures the absolute position of the magnet’s rotation
angle and consists of Hall sensors, analog digital converter and
digital signal processing. The absolute position information of
the magnet is directly accessible over a PWM output and can
be read out over a standard SPI or a high speed I²C interface.
AS5048A has a SPI interface, AS5048B I²C interface. Both devices
offer a PWM output.
The zero position can be programmed via SPI or I²C command.
This simplifies the assembly of the complete system because
the zero position of the magnet does not need to be
mechanically aligned. The sensor tolerates misalignment, air
gap variations, temperature variations and as well external
magnetic fields. This robustness and wide temperature range
(-40°C up to 150°C) of the AS5048 makes the IC ideal for rotation
angle sensing in harsh industrial and medical environments.
Several AS5048 ICs can be connected in daisy chain for serial
data read out. An internal voltage regulator allows the AS5048
to operate at either 3.3V or 5V supplies.
Ordering Information
and
Content Guide
appear at end of
datasheet.
Key Benefits & Features
The benefits and features of AS5048A/AS5048B, Magnetic
Rotary Encoder (14-Bit Angular Position Sensor) are listed
below:
Figure 1:
Added Value of Using AS5048
Benefits
No external programmer needed
High precision
Easy to use
Low material costs (no shielding)
Features
Standard SPI or I
2
C interface and PWM
14-bit resolution (0.0219°/LSB)
Zero position programmable via SPI or I
2
C
Immune to external magnetic stray fields
ams Datasheet
[v1-11] 2018-Jan-29
Page 1
Document Feedback

AS5048A Related Products

AS5048A AS5048B AS5048B-HTSP AS5048B-HTSP-500 AS5048A-HTSP WPRAS5048BHTSP500MULT1
Description Magnetic Rotary Encoder Sensor Magnetic Rotary Encoder Rotary Position Sensor 5.5V/3.6V Digital Output 14-Pin TSSOP T/R 14-Bit Angular Position Sensor Rotary Position Sensor 5.5V/3.6V Digital Output 14-Pin TSSOP T/R Rotary Position Sensor 5.5V/3.6V Digital Output 14-Pin TSSOP T/R
ECCN (US) - - EAR99-NLR EAR99 EAR99 EAR99
Type - - Rotary Rotary Rotary Rotary
Electrical Travel - - 360° 360° 360° 360°
Resolution - - 14Bit 14Bit 14Bit 14Bit
Output Type - - Digital Digital Digital Digital
Maximum Operating Supply Voltage (V) - - 5.5|3.6 5.5|3.6 5.5|3.6 5.5|3.6
Minimum Operating Temperature (°C) - - -40 -40 -40 -40
Maximum Operating Temperature (°C) - - 150 150 150 150
Linearity - - Yes Yes Yes Yes
Packaging - - Tape and Reel Tape and Reel Tape and Reel Tape and Reel
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