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AS5161 Datasheet

12-Bit Magnetic Angle Position Sensor

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General Description
AS5161
12-Bit Magnetic Angle Position Sensor
The AS5161 is a contactless magnetic angle position sensor for
accurate angular measurement over a full turn of 360°. A sub
range can be programmed to achieve the best resolution for
the application. It is a system-on-chip, combining integrated
Hall elements, analog front end, digital signal processing and
best in class automotive protection features in a single device.
To measure the angle, only a simple two-pole magnet, rotating
over the center of the chip, is required. The magnet may be
placed above or below the IC.
The absolute angle measurement provides instant indication of
the magnet’s angular position with a resolution of
0.022° = 16384 positions per revolution. According to this
resolution the adjustment of the application specific
mechanical positions are possible. The angular output data is
available over a 12 bit pulse width modulated (PWM) output.
The AS5161 operates at a supply voltage of 5V and the supply
and output pins are protected against overvoltage up to +20V.
In addition the supply pins are protected against reverse
polarity up to –20V.
Figure 1:
Typical Arrangement of AS5161 and Magnet
ams Datasheet
[v1-04] 2015-Dec-07
Ordering Information and Content Guide appear at end of
datasheet.
Page 1
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ams

AS5161 Datasheet Preview

AS5161 Datasheet

12-Bit Magnetic Angle Position Sensor

No Preview Available !

AS5161− GeneralDescription
Figure 2:
Added Value of Using AS5161
Key Benefits & Features
The benefits and features of AS5161, 12-Bit Magnetic Angle
Position Sensor are listed below:
Benefits
Great flexibility on angular excursion
Simple programming
Failure diagnostics
High-resolution output signal
Ideal for applications in harsh
environments due to contactless
position sensing
Features
360º contactless high resolution angular position sensing
User programmable start and end point of the
application region
Saw tooth mode 1-4 slopes per revolution
Clamping levels
Transition point
Broken GND and VDD detection for all external load cases
12-Bit pulse width modulated (PWM) output
Wide temperature range: - 40°C to 150°C
Applications
The AS5161 is ideal for automotive applications like:
Throttle and valve position sensing
Gearbox position sensor
Tumble flap
Chassis height level
Pedal position sensing
Contactless potentiometers
Page 2
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ams Datasheet
[v1-04] 2015-Dec-07


Part Number AS5161
Description 12-Bit Magnetic Angle Position Sensor
Maker ams
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AS5161 Datasheet PDF






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