AS5011
Low Power Integrated Hall IC for Human Interface Applications
Data Sheet
1 General Description
The AS5011 is a complete Hall Sensor IC for smart
navigation key applications to meet the low power
requirements and host SW integration challenges for
products such as cell phones and smart handheld
devices.
Due to the on chip processing engine, system
designers are not tasked with integrating complex SW
algorithms on their host processor thus leading to
rapid development cycles.
The AS5011 single-chip IC includes 4 integrated Hall
sensing elements for detecting up to ±2mm lateral
displacement, high resolution ADC, XY coordinate
and motion detection engine combined with a smart
power management controller.
The X and Y positions coordinates and magnetic field
information for each Hall sensor element is
transmitted over a 2-wire I²C compatible interface to
the host processor.
The AS5011 is available in a small 16-pin
5x5x0.55mm QFN package and specified over an
operating temperature of
-20 to +80°C.
Figure 1 Typical Arrangement of AS5011 and Axial
Magnet
3 Key Features
2.7 to 3.6V operating voltage
Down to 1.8V peripheral supply voltage
Less than 200µA current consumption in Low
Power mode
Less than 50µA current consumption in Shutdown
mode
Lateral magnet movement radius up to 2mm
I²C interface up to 4MHz
Configurable interrupt output for motion detection
Three operating modes:
Shutdown mode
Low Power mode
Full Power mode
4 Applications
The AS5011 is ideal for small factor manual input
devices in battery operated equipment, such as
Mobile phones
MP3 players
PDA’s
GPS receivers
Gaming consoles
2 Benefits
Complete system-on-chip
High reliability due to non-contact sensing
Low power consumption
Figure 2 AS5011 Block Diagram
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