MagAlpha MA702
12-Bit, Digital, Contactless Angle Sensor
with ABZ Incremental & PWM Outputs
DESCRIPTION
The MA702 detects the absolute angular
position of a permanent magnet, typically a
diametrically magnetized cylinder on a rotating
shaft. Fast data acquisition and processing
provide accurate angle measurement at speeds
from 0 to 60,000 rpm.
The MA702 supports a wide range of magnetic
field strengths and spatial configurations. Both
end-of-shaft and off-axis (side-shaft mounting)
configurations are supported.
The MA702 features magnetic field strength
detection with programmable thresholds to allow
sensing of the magnet position relative to the
sensor for creation of functions such as the
sensing of axial movements or for diagnostics.
On-chip non-volatile memory provides storage
for configuration parameters, including the
reference zero angle position, ABZ encoder
settings, and magnetic field detection
thresholds.
FEATURES
12-Bit Resolution Absolute Angle Encoder
Contactless Sensing for Long Life
SPI Serial Interface for Digital Angle
Readout and Chip Configuration
Incremental 10-Bit ABZ Quadrature
Encoder Interface with Programmable
Pulses Per Turn from 1-256
PWM Output 12-Bit
Programmable Magnetic Field Strength
Detection for Diagnostic Checks
3.3V, 12mA Supply
-40°C to +125°C Operating Temperature
Available in a QFN-16 (3mmx3mm)
Package
APPLICATIONS
General Purpose Angle Measurement
Angle Encoders
Automotive Angle or Speed Sensors
Robotics
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality Assurance. “MPS”
and “The Future of Analog IC Technology” are registered trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MA702 Rev. 1.0
9/27/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
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