DESCRIPTION
The MA780 is a low-power angle sensor that
detects the absolute angular position of a
permanent magnet, such as a diametrically
magnetized cylinder on a rotating shaft. With its
power-cycling ability, the sensor is optimized for
applications that require low average power.
Timing can be controlled via an on-chip clock or
external controller. Flags are provided to detect
a definable amount of angle change.
The MA780 supports a wide range of magnetic
field strengths and spatial configurations. Both
end-of-shaft and off-axis (side-shaft mounting)
configurations are supported.
On-chip, non-volatile memory (NVM) provides
storage for configuration parameters, including
the reference zero-angle position, power cycling
parameters, and the filter window that affects the
output resolution.
The MA780 is available in a QFN-16 (3mmx3mm)
package.

FEATURES
 8-Bit to 12-Bit Resolution Absolute
Contactless Angle Encoder
 <0.5μA Current Consumption in Idle Mode
 10mA Current Consumption in Active Mode
 Angle Detection Interrupt to Wake System
 Supports On-Axis and Off-Axis Operation
 Serial Peripheral Interface (SPI)
 3.3V Supply
 -40°C to +125°C Operating Temperature
 Available in a QFN-16 (3mmx3mm)
Package

APPLICATIONS
 General-Purpose Angle Measurements
 Battery-Powered Devices
 Multi-Turn Encoders
 Low-Power Rotary Knob Interfaces