ams Datasheet Page 1
[v2-06] 2014-Oct-14 Document Feedback
AS5055A
Low Power 12-Bit Magnetic Position
Sensor
The AS5055A is a single-chip on-axis magnetic rotary position
sensor with low voltage and low power features.
It includes an integrated Hall element array, a high resolution
ADC and a smart power management controller.
The angle position, alarm bits and magnetic field information
are transmitted over a 3-wire or 4-wire SPI interface to the
microcontroller.
The AS5055A is available in a compact QFN 16-pin 4x4x0.85 mm
package and specified over an operating temperature of -40ºC
to 85ºC.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of AS5055A, Low Power 12-Bit
Magnetic Position Sensor are listed below:
Figure 1:
Added Value of Using AS5055A
Benefits Features
Precise and reliable absolute angle measurement 12-bit absolute angle position indication
Very low power consumption 3μA current consumption in low power mode
High reliability sensing Immune to external magnetic stray fields
Synchronization between microcontroller and sensor Interrupt pin displays availability of new data
Ideal for small and compact designs QFN-16 4x4 package
Industry-standard interface 3- or 4-wire SPI interface
