MagAlpha MA730
14-Bit, Digital, Contactless Angle Sensor
with ABZ Incremental & PWM Outputs
PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE
MA730 Rev. 0.8 www.MonolithicPower.com 1
6/21/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change © 2017 MPS. All Rights Reserved.
DESCRIPTION
The MA730 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 measurements at
speeds from 0 to 60,000 RPM.
The MA730 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 MA730 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
14-Bit Resolution Absolute Angle Encoder
Contactless Sensing for Long Life
SPI Serial Interface for Digital Angle
Readout and Chip Configuration
Incremental 12-Bit ABZ Quadrature
Encoder Interface with Programmable
Pulses Per Turn from 1 - 1024
PWM Output 14-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 Measurements
High-Resolution Angle Encoders
Automotive Angle
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
INTERNAL USE ONLY / DO NOT DISTRIBUTE
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