DESCRIPTION
The MA732 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 0rpm to 60,000rpm. The digital
filtering is adjustable to optimize control loop
performance when used in servo applications.
The MA732 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 MA732 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
• 9-Bit to 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 to 1024
• 14-Bit PWM Output
• 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