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AS5161
12-Bit Magnetic Angle Position Sensor
General Description
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
Ordering Information and Content Guide appear at end of
datasheet.
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − General Description
Key Benefits & Features
The benefits and features of AS5161, 12-Bit Magnetic Angle
Position Sensor are listed below:
Figure 2:
Added Value of Using AS5161
Benefits
Features
• Great flexibility on angular excursion
• 360º contactless high resolution angular position sensing
• Simple programming
• User programmable start and end point of the
application region
• Saw tooth mode 1-4 slopes per revolution
• Clamping levels
• Transition point
• Failure diagnostics
• Broken GND and VDD detection for all external load cases
• High-resolution output signal
• 12-Bit pulse width modulated (PWM) output
• Ideal for applications in harsh
environments due to contactless
position sensing
• 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
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − General Description
Block Diagram
The functional blocks of this device are shown below:
Figure 3:
AS5161 Block Diagram
VDD3V3
VDD
High Voltage/
Reverse Polarity
Protection
Hall Array
Frontend
Amplifier
ADC
AS5161
Sin
Cos
DSP
CORDIC
Controller
12
PWM
OUT
LS Driver
Single Pin
Interface
(UART)
OTP Register
(Programming
Parameters)
GND
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − Pin Assignment
Pin Assignment
VDD
1
TP1
2
VDD3V3
3
GND
4
AS5161
Figure 4:
SOIC-8 Pin Configuration
8
OUT
7
S
6
TP3
5
TP2
Figure 5:
Pin Description
Pin
Number
Pin
Name
1
VDD
Supply pin
Positive supply pin. This pin is over voltage protected.
2
TP1
DIO/AIO
multi purpose pin
Test pin for fabrication. Connected to ground in the
application board.
3
VDD3V3
AIO
Output of the internal voltage regulator
4
GND
Supply pin
Ground pin. Connected to ground in the application.
5
TP2
DIO/AIO
multi purpose pin
Test pin for fabrication. Connected to ground in the
application board.
6
TP3
DIO/AIO
multi purpose pin
Test pin for fabrication. Open in the application.
7
S
AIO
Test pin for fabrication. Connected to OUT in the
application board.
8
OUT
DIO/AIO
multi purpose pin
Digital PWM output pin. Over this pin the programming
is possible. Open drain configuration.
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Pin Type
Description
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Absolute Maximum Ratings
Absolute Maximum Ratings
Stresses beyond those listed in Absolute Maximum Ratings may
cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any
other conditions beyond those indicated in Electrical
Characteristics is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device
reliability.
Figure 6:
Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Units
Comments
Electrical Parameters
VDD
DC supply voltage at pin
VDD Overvoltage
-20
20
V
No operation
VOUT
Output voltage OUT
-0.3
20
V
Permanent
Vdiff
Voltage difference at pin
VDD and OUT
-20
20
V
VDD3V3
DC supply voltage at pin
VDD3V3
-0.3
5
V
Input current
(latchup immunity)
-100
100
mA
Norm: AEC-Q100-004
kV
Norm: AEC-Q100-002
Iscr
Electrostatic Discharge
ESD
Electrostatic discharge
±2
Temperature Ranges and Storage Conditions
Tstrg
Storage temperature
TBody
Body temperature
RHNC
Relative humidity
non-condensing
MSL
Moisture Sensitivity Level
ams Datasheet
[v1-04] 2015-Dec-07
-55
150
5
3
ºC
Min -67ºF; Max 302ºF
260
ºC
The reflow peak soldering
temperature (body temperature)
specified is in accordance with
IPC/JEDEC J-STD-020
“Moisture/Reflow Sensitivity
Classification for Non-Hermetic
Solid State Surface Mount
Devices”. The lead finish for
Pb-free leaded packages is matte
tin (100% Sn).
85
%
Represents a maximum floor life
time of 168h
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AS5161 − Electrical Characteristics
Electrical Characteristics
Operating Conditions
In this specification, all the defined tolerances for external
components need to be assured over the whole operation
conditions range and also over lifetime.
Figure 7:
Operating Conditions
Symbol
Parameter
TAMB
Ambient temperature
Isupp
Supply current
VDD
Supply voltage at pin VDD
Conditions
Min
Typ
-40
4.5
5.0
Max
Units
150
ºC
10
mA
5.5
V
Magnetic Input Specification
TAMB = -40ºC to 150ºC, VDD = 4.5V to 5.5V (5V operation), unless
otherwise noted.
Two-Pole Cylindrical Diametrically Magnetized Source
Figure 8:
Magnetic Input Specification
Symbol
Bpk
Bpkext
Boff
Disp
Parameter
Conditions
Min
Magnetic input field
amplitude
Required vertical component
of the magnetic field strength
on the die’s surface, measured
along a concentric circle with a
radius of 1.25 mm
Magnetic input field
amplitude (extended)
default setting
Required vertical component
of the magnetic field strength
on the die’s surface, measured
along a concentric circle with a
radius of 1.25 mm. Increased
sensor output noise.
Magnetic offset
Constant magnetic stray field
Displacement radius
Offset between defined device
center and magnet axis
including eccentricity.
Dependent on the selected
magnet.
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Typ
Max
Units
30
70
mT
10
90
mT
±5
mT
1
mm
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Electrical Characteristics
Electrical System Specifications
TAMB = -40ºC to 150ºC, V DD = 4.5V to 5.5V (5V operation),
Magnetic Input Specification, unless otherwise noted.
Figure 9:
Electrical System Specifications
Symbol
RES
Parameter
Conditions
Min
Typ
Max
Units
Resolution PWM Output
Range > 90º
12
bit
INLopt
Integral non-linearity
(optimum)
Best aligned reference
magnet at 25ºC over full turn
360º
0.5
deg
INLtemp
Integral non-linearity
(optimum)
Best aligned reference
magnet over temperature
-40º to 150º over full turn
360º
0.9
deg
INL
Integral non-linearity
Best aligned reference
magnet over temperature
-40º to 150º over full turn
360º and displacement
1.4
deg
DNL
Differential non-linearity
Monolitic
0.05
deg
ON
Output noise
(360º segment)
1 LSB after filter peak/peak
rms value
0.2
% DC
tPwrUp
Power-up time 0-5V
See Figure 10
10
ms
tdelay
System propagation delay
absolute output: delay of
ADC, DSP and absolute
interface
10kΩ, 100 μF RC filter
300
μs
Figure 10:
Power-Up Timing Diagram
VDD
4.5V
OUT pin in HiZ
First Valid Data on OUT pin
tPwrUp
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − Electrical Characteristics
Timing Characteristics
Figure 11:
Timing Conditions
Symbol
Parameter
TDETWD
WachDog error detection time
Conditions
Min
Typ
Max
Units
12
ms
Power Management - Supply Monitor
Figure 12:
Power Management - Supply Monitor Conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VDDUVTH
VDD undervoltage upper
threshold
3.5
4.0
4.5
V
VDDUVTL
VDD undervoltage lower
threshold
3.0
3.5
4.0
V
VDDUVHYS
VDD undervoltage hysteresis
300
500
900
mV
VDDUVDET
VDD undervoltage detection
time
10
50
250
μs
VDDUVREC
VDD undervoltage recovery
time
10
50
250
μs
VDDOVTH
VDD overvoltage upper
threshold
6.0
6.5
7.0
V
VDDOVTL
VDD overvoltage lower
threshold
5.5
6
6.5
V
VDDOVHYS
VDD overvoltage hysteresis
300
500
900
mV
ANATOVDET
VDD overvoltage detection
time (analog path)
10
50
250
μs
ANATOVREC
VDD overvoltage recovery time
(analog path)
10
50
250
μs
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Detailed Description
Detailed Description
The AS5161 is manufactured in a CMOS process and uses a
spinning current Hall technology for sensing the magnetic field
distribution across the surface of the chip.
The integrated Hall elements are placed around the center of
the device and deliver a voltage representation of the magnetic
field at the surface of the IC.
Through Sigma-Delta Analog / Digital Conversion and Digital
Signal-Processing (DSP) algorithms, the AS5161 provides
accurate high-resolution absolute angular position
information. For this purpose a Coordinate Rotation Digital
Computer (CORDIC) calculates the angle and the magnitude of
the Hall array signals.
The DSP is also used to provide digital information at the
outputs that indicate movements of the used magnet towards
or away from the device’s surface.
A small low cost diametrically magnetized (two-pole) standard
magnet provides the angular position information.
The AS5161 senses the orientation of the magnetic field and
calculates a 14-bit binary code. This code is mapped to a
programmable output characteristic in a PWM duty cycle
format. This signal is available at the pin (OUT).
The application angular region can be programmed in a user
friendly way. The start angle position T1 and the end point T2
can be set and programmed according the mechanical range
of the application with a resolution of 14 bits. In addition the
T1Y and T2Y parameter can be set and programmed according
the application. The transition point 0 to 360 degree can be
shifted using the break point parameter BP. The voltage for
clamping level low CLL and clamping level high CLH can be
programmed with a resolution of 9 bits. Both levels are
individually adjustable.
The output parameters can be programmed in an OTP register.
No additional voltage is required to program the AS5161. The
setting may be overwritten at any time and will be reset to
default when power is cycled. To make the setting permanent,
the OTP register must be programmed by using a lock bit the
content could be frozen for ever.
The AS5161 is tolerant to magnet misalignment and unwanted
external magnetic fields due to differential measurement
technique and Hall sensor conditioning circuitry.
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − Detailed Description
Operation
VDD Voltage Monitor
VDD Over Voltage Management. If the supply voltage at pin
VDD exceeds the over-voltage upper threshold for longer than
the detection time the output is turned off. When the over
voltage event has passed and the voltage applied to pin VDD
falls below the over-voltage lower threshold for longer than the
recovery time the device enters the normal mode and the
output is enabled.
VDD Under Voltage Management. When the voltage applied
to the VDD pin falls below the under-voltage lower threshold
for longer than the detection time the output is turned off.
When the voltage applied to the VDD pin exceeds the
under-voltage upper threshold for longer than the detection
time the device enters the normal mode and the output is
enabled.
PWM Output
By default (after programmed CUST_LOCK OTP bit) the PWM
output mode is selected. The pin OUT provides a modulated
signal that is proportional to the angle of the rotating magnet.
Due to an intelligent approach a permanent short circuit will
not damage the device. This is also feasible in a high voltage
condition up to 20 V and at the highest specified ambient
temperature.
After the digital signal processing (DSP) a PWM engine provides
the output signal.
The DSP maps the application range to the output
characteristic. An inversion of the slope is also programmable
to allow inversion of the rotation direction.
An on-chip diagnostic feature handles the error state at the
output. Depending on the failure the output is in HiZ condition
or indicates a PWM signal within the failure bands of 4 –96%
duty cycle (see Figure 20).
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Detailed Description
Programming Parameters
The PWM output characteristic is programmable by OTP.
Depending on the application, the output can be adjusted. The
user can program the following application specific
parameters.
Figure 13:
Programming Parameters
Parameter
Description
T1
Mechanical angle start point
T2
Mechanical angle end point
T1Y
% duty cycle level at the T1 position
T2Y
% duty cycle level at the T2 position
CLL
Clamping Level Low
CLH
Clamping Level High
BP
Break point (transition point 0 to 360º)
These parameters are input parameters. Using the available
programming software and programmer these parameters are
converted and finally written into the AS5161 128 bit OTP
memory.
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − Detailed Description
Application Specific Angular Range Programming
The application range can be selected by programming T1 with
a related T1Y and T2 with a related T2Y into the AS5161. The
clamping levels CLL and CLH can be programmed independent
from the T1 and T2 position and both levels can be separately
adjusted.
Figure 14:
Programming of an Individual Application Range
90 degree
Application range
electrical range
T2
mechanical range
T1
100%DC
clamping range
high
CLH
CLL
0 degree
T2Y
180 degree
CLH
T1Y
BP
CLL
0
clamping range
low
T1
T2
270 degree
Figure 14 shows a simple example of the selection of the range.
The mechanical starting point T1 and the mechanical end point
T2 are defining the mechanical range. A sub range of the
internal CORDIC output range is used and mapped to the
needed output characteristic. The PWM output signal has 12
bit, hence the level T1Y and T2Y can be adjusted with this
resolution. As a result of this level and the calculated slope the
clamping region low is defined. The break point BP defines the
transition between CLL and CLH. In this example the BP is set
to 0 degree. The BP is also the end point of the clamping level
high CLH. This range is defined by the level CLH and the
calculated slope. Both clamping levels can be set
independently form each other.
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Detailed Description
Application Specific Programming of the Break Point
The break point BP can be programmed as well with 14 bits.
This is important when the default transition point is inside the
application range. In such a case the default transition point
must be shifted out of the application range. The parameter BP
defines the new position.
Figure 15:
Individual Programming of the Break Point BP
90 degree
Application range
electrical range
T2
mechanical range
T1
100%DC
CLH
clamping range
high
CLH
0 degree
T2Y
180 degree
CLL
T1Y
CLL
BP
0
clamping range
low
T1
T2
clamping range
low
270 degree
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − Detailed Description
Multiple Slope Output
The AS5161 can be programmed to multiple slopes. Where one
programmed reference slope characteristic is copied to
multiple slopes. Two, three and four slopes are selectable by the
user OTP bits QUADEN (1:0). In addition to the steepness of the
slope the clamping levels can be programmed as well.
Duty Cycle
Figure 16:
Two Slope Mode
0
Duty Cycle
Figure 17:
Four Slope Mode
0
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Detailed Description
Resolution of Parameters
The programming parameters have a wide resolution of up to
14 bits.
Figure 18:
Resolution of the Programming Parameters
Symbol
Parameter
Resolution
T1
Mechanical angle start point
14 bits
T2
Mechanical angle stop point
14 bits
T1Y
Mechanical start voltage level
12 bits
T2Y
Mechanical stop voltage level
12 bits
CLL
Clamping level low
9 bits
CLH
Clamping level high
9 bits
Break point
14 bits
BP
Note
Figure 19:
Overview of the Output Range
100
96
Failure Band High
Clamping Region High
CLH
Duty Cycle
T2Y
Application Region
T1Y
CLL
Clamping Region Low
4
0
Failure Band Low
Figure 19 gives an overview of the different ranges. The failure
bands are used to indicate a wrong operation of the AS5161.
This can be caused due to a broken supply line. By using the
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − Detailed Description
specified load resistors, the output level will remain in these
bands during a fail. It is recommended to set the clamping level
CLL above the lower failure band and the clamping level CLH
below the higher failure band.
Figure 20:
Different Failure Cases of AS5161
Type
Failure Mode
Symbol
Failure Band
MAGRng
High/Low
Programmable by OTP bit
DIAG_HIGH
CORDIC overflow
COF
High/Low
Programmable by OTP bit
DIAG_HIGH
Offset compensation
finished
OCF
High/Low
Programmable by OTP bit
DIAG_HIGH
Watchdog fail
WDF
High/Low
Programmable by OTP bit
DIAG_HIGH
Oscillator fail
OF
High/Low
Programmable by OTP bit
DIAG_HIGH
Overvoltage condition
OV
Out of magnetic range
(too less or too high
magnetic input)
Internal alarms
(failures)
Application
related failures
Broken VDD
BVDD
Broken VSS
BVSS
Short circuit output
SCO
Note
High
Dependant on the load
resistor
Pull up → failure band high
High
Switch off → short circuit
dependent
For efficient use of diagnostics, it is recommended to program
to clamping levels CLL and CLH.
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Detailed Description
PWM Output Driver Parameters
The output stage is configured in a open drain output.
The PWM duty cycle represents the angular output data. All
programming features are available for the PWM mode as well.
The PWM period is programmable in four steps and can be
programmed by PWMF<2:0>.
C LOAD≤ 33 nF, R PU= 1kΩ to 10kΩ
Figure 21:
PWM Parameters Output Driver
Symbol
Parameter
Conditions
Min
Typ
Max
Units
PWMF1
PWM frequency 7
PWMF<2:0>=111
109.86
122
134.28
Hz
PWMF2
PWM frequency 6
PWMF<2:0>=110
179.78
200
219.73
Hz
PWMF3
PWM frequency 5
PWMF<2:0>=101
219.73
244
268.55
Hz
PWMF4
PWM frequency 4
PWMF<2:0>=100
329.59
366
402.83
Hz
PWMF5
PWM frequency 3
PWMF<2:0>=011
494.38
549
604.25
Hz
PWMF6
PWM frequency 2
PWMF<2:0>=010
659.18
732
805.66
Hz
PWMF7
PWM frequency 1
PWMF<2:0>=001
988.77
1100
1208.50
Hz
PWMF8
PWM frequency 0
PWMF<2:0>=000
1977.54
2197
2416.2
Hz
PWMDC
PWM duty cycle range
info parameter
4
96
%
PWMVOL
Output voltage low
IOUT=5mA
0
0.4
V
PWMSRF
PWM slew rate
(falling edge)
Between 75% and 25%
RPUOUT=4KΩ;
CLOUT=1nF
VDD=5V
1
4
V / μs
2
Hysteresis Function
AS5161 device includes a hysteresis function to avoid sudden
jumps from CLH to CLL and vice versa caused by noise in the
full turn configuration.
The hysteresis amplitude can be selected via the OTP bits
HYSTSEL<1:0>.
ams Datasheet
[v1-04] 2015-Dec-07
Page 17
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AS5161 − Application Information
Application Information
Recommended Application Schematic
Figure 22 shows the recommended schematic in the
application. All components marked with (*) are optional and
can be used to further increase the EMC.
Figure 22:
Recommended Schematic of Pull-Up Configuration
Sensor PCB
Electric Control Unit
VDD
RLPU
R1*
VDD
TP1
VDD3V3
OUT
AS5161
GND
C1
C2
OUT
S
TP3
TP2
C3
C4*
CL
GND
Figure 23:
External Components
Symbol
Parameter
Min
Typ
Max
Units
Note
C1
VDD buffer capacitor
0.8
1
1.2
μF
Low ESR 0.3 Ω
C2
VDD3V3 regulator capacitor
0.8
1
1.2
μF
Low ESR 0.3 Ω
C3
OUT load capacitor
(sensor PCB)
4.7
nF
C4*
VDD capacitor (optional)
4.7
nF
R1*
VDD serial resistor (optional)
10
Ω
CL
OUT load capacitor (ECU)
0
33
nF
OUT pull-up resistance
1
10
kΩ
RLPU
Page 18
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0
Do not increase due to
programming over
output.
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
Programming the AS5161
The AS5161 programming is a one-time-programming (OTP)
method, based on polysilicon fuses. The advantage of this
method is that no additional programming voltage is needed.
The internal LDO provides the current for programming.
The OTP consists of 128 bits; several bits are available for user
programming. In addition factory settings are stored in the OTP
memory. Both regions are independently lockable by build in
lock bits.
A single OTP cell can be programmed only once. Per default,
the cell is “0”; a programmed cell will contain a “1”. While it is
not possible to reset a programmed bit from “1” to “0”, multiple
OTP writes are possible, as long as only unprogrammed “0”-bits
are programmed to “1”.
Independent of the OTP programming, it is possible to
overwrite the OTP register temporarily with an OTP write
command. This is possible only if the user lock bit is not
programmed.
Due to the programming over the output pin the device will
initially start in the communication mode. In this mode the
digital angle value can be read with a specific protocol format.
It is a bidirectional communication possible. Parameters can be
written into the device. A programming of the device is
triggered by a specific command. With another command
(pass2func) the device can be switched into operation mode.
In case of a programmed user lock bit the AS5161 automatically
starts up in the functional operation mode. No communication
of the specific protocol is possible after this.
A standard half duplex UART protocol is used to exchange data
with the device in the communication mode.
UART Interface for Programming
The AS5161 uses a standard UART interface with an address
byte and two data bytes. The read or write mode is selected
with bit R/Wn in the first byte. The timing (baudrate) is selected
by the AS5161 over a synchronization frame. The baud rate
register can be read and overwritten (optional). Every start bit
is used for synchronization.
A time out function detects not complete commands and resets
the AS5161 UART after the timeout period.
ams Datasheet
[v1-04] 2015-Dec-07
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AS5161 − Application Information
Frame Organization
Each frame is composed by 24 bits. The first byte of the frame
specifies the read/write operation with the register address. 16
data bits contains the communication data. There will be no
operation in case of the usage of a not specified CMD. The UART
programming interface block of the AS5161 can operate in
slave communication or master communication mode. In the
slave communication mode the AS5161 receives the data. The
programming tool is the driver of the single communication
line. In case of the master communication mode the AS5161
transmits data in the frame format. The single communication
line can be pulled down by the AS5161.
The UART frame consists of 1 start bit (low level), 8 data bit, 1
even-parity bit and 1 stop bit (high level). Data are transferred
from LSB to MSB.
Figure 24:
General UART Frame
start
D0
D1
D2
D3
D4
D5
D6
D7 par stop
Figure 25:
Bit Timing
Symbol
Parameter
Min
Typ
Max
Unit
START
Start bit
1
TBIT
Dx
Data bit
1
TBIT
PAR
Parity bit
1
TBIT
STOP
Stop bit
TSW
Slave/Master Switch Time
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1
Note
TBIT
7
TBIT
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
Each communication starts with the reception of a request from
the external controller. The request consists of two frames: one
synchronization frame and the command frame.
The synchronization frame contains the data 0x55 and allows
the UART to measure the external controller baud rate.
Figure 26:
Synchronization Frame
start
D0
D1
D2
D3
D4
D5
D6
D7
par
stop
The second frame contains the command Read/ Write (1 bit)
and the address (7 bits).
Figure 27:
Address and Command Frame
start
AD
0
AD
1
AD
2
AD
3
AD
4
AD
5
AD
R/Wn
6
par
stop
Only two commands are possible. In case of read command the
idle phase between the command and the answer is the time
TSW. In case of parity error command is not executed.
Figure 28:
Possible Commands
Possible Interface
Commands
Description
AS5X63
Communication Mode
Command
CMD
WRITE
Write data to the OTP memory or
Registers
SLAVE
0
READ
Read data to the OTP memory or
Registers
SLAVE & MASTER
1
Note(s) and/or Footnote(s):
1. In case of Write command the request is followed by the frames containing the data to write.
2. In case of Read command the communication direction will change and the AS5161 will answer with the frames containing the
requested data.
ams Datasheet
[v1-04] 2015-Dec-07
Page 21
Document Feedback
AS5161 − Application Information
WRITE (Command Description)
Figure 29:
Full Write Command
Synchronization frame
start
D0
D1
D2
D3
D4
D5
AD0
AD1
AD2
AD3
AD4
AD5
D6
D7
par
stop
par
stop
Write command frame
start
AD6
R/
Wn
Data0 frame (data to write on address AD<6:0>)
start
D00
D01
D03
D04
D05
D06
D07
par
stop
D03
D04
D05
D06
D07
par
stop
D02
Data1 frame (data to write on address AD<6:0>+1)
start
D00
D01
D02
• Writing the AS5161 KEY in the fuse register (address 0x41)
triggers the transfer of the data from the OTP RAM into
the Poly Fuse cell.
• Writing the AS5161 KEY in the Pass2Func Register (address
0x60) forces the device into normal mode.
Page 22
Document Feedback
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
READ (Command Description)
Figure 30:
Full Read Command
Synchronization frame:
start
D0
D1
D2
D3
D4
D5
D6
D7
par
stop
AD0
AD1
AD2
AD3
AD4
AD5
AD6
R/Wn
par
stop
Read command frame:
start
Data0 frame (data read from address AD<6:0>) (MASTER):
start
D00
D01
D02
D03
D04
D05
D06
D07
par
stop
D04
D05
D06
D07
par
stop
Data1 frame (data read from address AD<6:0>+1) (MASTER):
start
D00
D01
D02
D03
Baud-Rate Automatic Detection
The UART includes a built-in baud-rate monitor that uses the
synchronization frame to detect the external controller
baud-rate. This baud-rate is used after the synchronization byte
to decode the following frame and to transmit the answer and
it is stored in the BAUDREG register.
Baud-Rate Manual Setting (Optional)
The BAUDREG register can be read and over-written for a
possible manual setting of the baud-rate: in case the register is
overwritten with a value different from 0, this value will be used
for the following UART communications and the
synchronization frame must be removed from the request.
ams Datasheet
[v1-04] 2015-Dec-07
Page 23
Document Feedback
AS5161 − Application Information
High Byte
Even Parity
Stop
S 0 0 0 0 0 0 0 0 0 P IDLE
Start
Even Parity
Stop
S 0 1 0 1 1 1 0 0 0 P IDLE
MSB
LSB
Low Byte
MSB
LSB
P IDLE
Start
0
R/n
Even Parity
Stop
S
MSB
LSB
WR BAUDREG
Address
Start
R/n
Even Parity
Stop
S 1 0 1 0 1 0 1 0 0 P IDLE
Start
IDLE
synch frame
MSB
LSB
Figure 31:
Manual Baud-Rate Setting
AS5161 in Receiving Mode (Write Access)
AS5161 in Receiving
Mode
Page 24
Document Feedback
MSB
High Byte
Even Parity
IDLE
Stop
P
Start
S
High Byte
S
P
IDLE
Stop
IDLE
Even Parity
P
MSB
LSB
Low Byte
Start
S
Even Parity
Stop
LSB
IDLE
Start
P
Stop
1
IDLE
AS5161 in Receiving Mode (Write Access)
MSB
Reg. Address
R/Wn
Even Parity
LSB
Start
S
LSB
P
Even Parity
Stop
S
AS5161 in Receiving
Mode
IDLE
Low Byte
MSB
LSB
IDLE
MSB
R/n
Even Parity
P
Start
0
Stop
Reg. Address
S
Start
IDLE
MSB
LSB
Figure 32:
Simple Read and Write
AS5161 in transmitting mode (Read Access)
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
OTP Programming Data
Figure 33:
OTP Memory Map
Data Byte
Bit
Number
Symbol
Default
0
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
Description
DATA15 (0x0F)
1
Factory
Settings
0
ams (reserved)
0
2
0
3
0
4
0
5
0
6
0
7
0
0
0
1
0
Factory Settings
0
DATA14 (0x0E)
DATA13 (0x0D)
ams Datasheet
[v1-04] 2015-Dec-07
Page 25
Document Feedback
AS5161 − Application Information
Bit
Number
Symbol
Default
2
CUSTID<0>
0
3
CUSTID<1>
0
4
CUSTID<2>
0
5
CUSTID<3>
0
6
CUSTID<4>
0
7
CUSTID<5>
0
DATA12 (0x0C)
0
CUSTID<6>
0
DATA11 (0x0B)
7
CLH<0>
0
0
CLH<1>
0
1
CLH<2>
0
2
CLH<3>
0
3
CLH<4>
0
4
CLH<5>
0
5
CLH<6>
0
6
CLH<7>
0
7
CLH<8>
0
Data Byte
Description
DATA13 (0x0D)
Customer Identifier
Customer Settings
Clamping Level High
DATA10 (0x0A)
Page 26
Document Feedback
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
Data Byte
Bit
Number
Symbol
Default
0
CLL<0>
0
1
CLL<1>
0
2
CLL<2>
0
3
CLL<3>
0
4
CLL<4>
0
5
CLL<5>
0
6
CLL<6>
0
7
CLL<7>
0
0
CLL<8>
0
1
OFFSET<0>
0
2
OFFSET<1>
0
3
OFFSET<2>
0
4
OFFSET<3>
0
5
OFFSET<4>
0
6
OFFSET<5>
0
7
OFFSET<6>
0
0
OFFSET<7>
0
1
OFFSET<8>
0
2
OFFSET<9>
0
3
OFFSET<10>
0
4
OFFSET<11>
0
5
OFFSET<12>
0
6
OFFSET<13>
0
7
OFFSET<14>
0
Description
DATA9 (0x09)
Clamping Level Low
Customer Settings
DATA8 (0x08)
Offset
DATA7 (0x07)
ams Datasheet
[v1-04] 2015-Dec-07
Page 27
Document Feedback
AS5161 − Application Information
Data Byte
Bit
Number
Symbol
Default
0
OFFSET<15>
0
1
OFFSET<16>
0
2
OFFSET<17>
0
3
OFFSET<18>
0
4
OFFSET<19>
0
5
GAIN<0>
0
6
GAIN<1>
0
7
GAIN<2>
0
0
GAIN<3>
0
1
GAIN<4>
0
2
GAIN<5>
0
3
GAIN<6>
0
4
GAIN<7>
0
5
GAIN<8>
0
6
GAIN<9>
0
7
GAIN<10>
0
0
GAIN<11>
0
1
GAIN<12>
0
2
GAIN<13>
0
3
GAIN<14>
0
4
GAIN<15>
0
5
GAIN<16>
0
6
BP<0>
0
7
BP<1>
0
Description
Offset
DATA6 (0x06)
Scale Factor
Customer Settings
DATA5 (0x05)
DATA4 (0x04)
Break Point
Page 28
Document Feedback
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
Data Byte
Bit
Number
Symbol
Default
0
BP<2>
0
1
BP<3>
0
2
BP<4>
0
3
BP<5>
0
4
BP<6>
0
5
BP<7>
0
6
BP<8>
0
7
BP<9>
0
0
BP<10>
0
1
BP<11>
0
2
BP<12>
0
3
BP<13>
0
Description
DATA3 (0x003)
Break Point
ANGLERNG
0
5
DIAG_HIGH
0
Failure Band Selection
0=Failure Band Low
1=Failure Band High
6
QUADEN<0>
0
7
QUADEN<1>
0
DATA2 (0x02)
ams Datasheet
[v1-04] 2015-Dec-07
Customer Settings
4
Sector selection
0=Angular Sector≥22.5
degrees;
1=Angular Sector<22.5
degrees
Quadrant Mode Enable
00=1quadrant;
01=2quadrants;
10=3 quadrants;
11=4 quadrants
Page 29
Document Feedback
AS5161 − Application Information
Data Byte
Bit
Number
Symbol
Default
AIRGAPSEL
0
1
HYSTSEL<0>
0
2
HYSTSEL<1>
0
3
Not used
0
4
Not used
0
5
Not used
0
6
Not used
0
7
Not used
0
0
RED_ADD<0>
0
1
RED_ADD<1>
0
2
RED_ADD<2>
0
3
RED_ADD<3>
0
4
RED_BIT<0>
0
5
RED_BIT<1>
0
6
RED_BIT<2>
0
Redundancy Bit
Identify the position of the
bit to be changed in the
byte at the address
RED_ADD<3:0>
7
CUST_LOCK
0
Lock bit for Customer Area
Hysteresis selection
00=no hysteresis;
01: 56LSB;
10=91LSB;
11=137LSB
Customer Settings
Page 30
Document Feedback
Magnetic input range
extension
0:extended range;
1=normal range
0
DATA1 (0x01)
DATA0 (0x00)
Description
Redundancy Address
Identify the address of the
byte containing the bit to
be changed
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
READ / WRITE Register Map
Figure 34:
Read/Write Registers
Data Byte
Bit
Number
Symbol
Default
0
BAUDREG<0>
0
1
BAUDREG<1>
0
2
BAUDREG<2>
0
3
BAUDREG<3>
0
4
BAUDREG<4>
0
5
BAUDREG<5>
0
6
BAUDREG<6>
0
7
BAUDREG<7>
0
0
BAUDREG<8>
0
1
Not used
0
2
Not used
0
3
Not used
0
4
Not used
0
5
Not used
0
6
Not used
0
7
Not used
0
0
Not used
0
1
Not used
0
2
Not used
0
3
Not used
0
4
Not used
0
5
R1K10K<0>
0
6
R1K10K<1>
0
7
DSPRN
0
Description
DATA0 (0x20)
DATA2 (0x22)
ams Datasheet
[v1-04] 2015-Dec-07
A read command returns all
data bits at 0
Read/Write Area
DATA1 (0x21)
UART Baud Rate Register
Selection of the reference
resistance used for OTP
download
Resetn of the Digital Signal
Processing circuit
Page 31
Document Feedback
AS5161 − Application Information
READ Only Register Map
Figure 35:
Read Only Registers
Data Byte
DATA0 (0x28)
Bit
Number
Symbol
Default
0
Not used
0
A read command returns 0
1
OFFSETFINISHED
0
Offset compensation
finished
2
AGCFINISHED
0
AGC loop compensation
finished
3
CORDICOVF
0
Overflow of the CORDIC
4
AGCALARML
0
AGC loop saturation
because of B field too strong
5
AGCALARMH
0
AGC loop saturation
because of B field too weak
OTP_RES
0
7
PARITY_ERR
0
UART parity error flag
0
CORDICOUT<0>
0
1
CORDICOUT<1>
0
2
CORDICOUT<2>
0
3
CORDICOUT<3>
0
4
CORDICOUT<4>
0
5
CORDICOUT<5>
0
6
CORDICOUT<6>
0
7
CORDICOUT<7>
0
Read Area
6
0=1K resistance selected for
OTP download;
1=10K resistance selected
for OTP download
DATA1 (0x29)
Page 32
Document Feedback
Description
CORDIC Output
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
Data Byte
Bit
Number
Symbol
Default
0
CORDICOUT<8>
0
1
CORDICOUT<9>
0
2
CORDICOUT<10>
0
3
CORDICOUT<11>
0
4
CORDICOUT<12>
0
5
CORDICOUT<13>
0
6
Not used
0
7
Not used
0
0
DSPOUT<0>
0
1
DSPOUT<1>
0
2
DSPOUT<2>
0
3
DSPOUT<3>
0
4
DSPOUT<4>
0
5
DSPOUT<5>
0
6
DSPOUT<6>
0
7
DSPOUT<7>
0
0
DSPOUT<8>
0
1
DSPOUT<9>
0
2
DSPOUT<10>
0
3
DSPOUT<11>
0
4
Not used
0
5
Not used
0
6
Not used
0
7
Not used
0
Description
CORDIC Output
DATA2 (0x2A)
A read command returns all
data bits at 0
Read Area
DATA3 (0x2B)
DSP Output
DATA4 (0x2C)
ams Datasheet
[v1-04] 2015-Dec-07
A read command returns all
data bits at 0
Page 33
Document Feedback
AS5161 − Application Information
Data Byte
Bit
Number
Symbol
Default
0
AGCVALUE<0>
0
1
AGCVALUE<1>
0
2
AGCVALUE<2>
0
3
AGCVALUE<3>
0
4
AGCVALUE<4>
0
5
AGCVALUE<5>
0
6
AGCVALUE<6>
0
7
AGCVALUE<7>
0
0
MAG<0>
0
1
MAG<1>
0
2
MAG<2>
0
3
MAG<3>
0
4
MAG<4>
0
5
MAG<5>
0
6
MAG<6>
0
7
MAG<7>
0
0
Not used
0
1
Not used
0
2
Not used
0
3
Not used
0
4
Not used
0
5
Not used
0
6
Not used
0
7
Not used
0
DATA5 (0x2D)
AGC Value
Magnitude of magnetic field
DATA7 (0x2F)
Read Area
DATA6 (0x2E)
Page 34
Document Feedback
Description
A read command returns all
data bits at 0
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
Special Registers
Figure 36:
Special Registers
Data Byte
Bit
Number
Symbol
Default
0
AS5161KEY<0>
0
1
AS5161KEY<1>
0
2
AS5161KEY<2>
0
3
AS5161KEY<3>
0
4
AS5161KEY<4>
0
5
AS5161KEY<5>
0
6
AS5161KEY<6>
0
7
AS5161KEY<7>
0
0
AS5161KEY<8>
0
1
AS5161KEY<9>
0
2
AS5161KEY<10>
0
3
AS5161KEY<11>
0
4
AS5161KEY<12>
0
5
AS5161KEY<13>
0
6
AS5161KEY<14>
0
7
AS5161KEY<15>
0
Description
DATA0 (0x41)
Fuse Register
AS5161 KEY<15:0>=0101
0001 0110 0010
A write command with data
different from AS5161 KEY is
not executed
A read command returns all
data bits at 0
DATA1 (0x42)
ams Datasheet
[v1-04] 2015-Dec-07
Page 35
Document Feedback
AS5161 − Application Information
Data Byte
Bit
Number
Symbol
Default
0
AS5161KEY<0>
0
1
AS5161KEY<1>
0
2
AS5161KEY<2>
0
3
AS5161KEY<3>
0
4
AS5161KEY<4>
0
5
AS5161KEY<5>
0
6
AS5161KEY<6>
0
7
AS5161KEY<7>
0
0
AS5161KEY<8>
0
1
AS5161KEY<9>
0
2
AS5161KEY<10>
0
3
AS5161KEY<11>
0
4
AS5161KEY<12>
0
5
AS5161KEY<13>
0
6
AS5161KEY<14>
0
7
AS5161KEY<15>
0
Description
DATA0 (0x60)
Pass2Func Register
AS5161 KEY<15:0>=0101
0001 0110 0010
A write command with data
different from AS5161 KEY is
not executed
A read command returns all
data bits at 0
DATA1 (0x61)
Page 36
Document Feedback
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Application Information
Programming Procedure
• Pull-Up on out pin
• VDD=5V
• Wait 10ms (after the startup time device enters
communication mode)
• Write command: Trimming bits are written in the OTP RAM
• Read command: All the trimming bits are read back to
check the correctness of the writing procedure.
• Write AS5161KEY in the Fuse register: The OTP RAM
content is permanently transferred into the Poly Fuse
cells.
• Wait 10 ms (fuse time)
• Write command, R1K_10K<1:0>=(11)b: Poly Fuse cells are
downloaded into the RAM memory using a 10K resistance
as reference.
• Wait 5 ms (download time)
• Read R1K_10K register, the expected value is 00b
• Write command, R1K_10K<1:0>=(11)b
• Read R1K_10K register, the expected value is (11)b.
NB: Step11 and Step12 have to be consecutive.
• Read command: all the fused bits downloaded with 10K
resistance are read back.
• Write command, R1K_10K=<1:0>=(10)b: Poly Fuse cells
are downloaded into the RAM memory using a 1K
resistance as reference.
• Wait 5 ms (download time)
• Read R1K_10K register, the expected value is (00)b
• Write command register, R1K_10K<1:0>=(10)b
• Read R1K_10K register, the expected value is (10)b
NB: Step18 and Step19 have to be consecutive.
• Read command: All the fused bits downloaded with 1K
resistance are read back.
• Check that read commands at Steps 5, 13 and 19 are
matching
• Write AS5161KEY in the Pass2Func register: Device enters
normal mode.
ams Datasheet
[v1-04] 2015-Dec-07
Page 37
Document Feedback
AS5161 − Application Information
Mechanical Data
The internal Hall elements are placed in the center of the
package on a circle with a radius of 1.25mm.
Figure 37:
Hall Element Positions
Note(s) and/or Footnote(s):
1. All dimensions in mm.
2. Die thickness 356μm nom.
3. Adhesive thickness 2 0 ± 10μm.
4. Lead frame downest 200 ± 25μm.
5. Lead frame thickness 200 ± 8μm.
Page 38
Document Feedback
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Package Drawings & Markings
Package Drawings & Markings
The device is available in a SOIC 8 - Lead 150 MIL Package.
Figure 38:
Package Drawings and Dimensions
Symbol
Min
Nom
Max
Symbol
Min
Typ
Max
A
A1
A2
b
c
D
E
E1
e
L
L1
L2
0.10
1.25
0.31
0.17
0.40
-
4.90 BSC
6.00 BSC
3.90 BSC
1.27 BSC
1.04 REF
0.25 BSC
1.75
0.25
0.51
0.25
1.27
-
R
R1
h
Q
Θ1
Θ2
aaa
bbb
ccc
ddd
eee
fff
N
0.07
0.07
0.25
0º
5º
0º
-
0.10
0.20
0.10
0.25
0.10
0.15
8
0.50
8º
15º
-
RoHS
Green
Note(s) and/or Footnote(s):
1. Dimensions and tolerancing confirm to ASME Y14.5M-1994.
2. All dimensions are in miilimeters. Angles are in degrees.
Figure 39:
Package Marking: @YYWWMZZ
@
YY
WW
M
ZZ
Sublot identifier
Year
Week
Assembly plant identifier
Assembly traceability code
ams Datasheet
[v1-04] 2015-Dec-07
Page 39
Document Feedback
AS5161 − Ordering & Contact Information
Ordering & Contact Information
The devices are available as the standard products shown in
Figure 40.
Figure 40:
Ordering Information
Ordering Code
AS5161-HSOP
AS5161-HSOM
Description
12-Bit Programmable
Angle Position Sensor
with PWM output
Package
Delivery Form
SOIC - 8
Tape & Reel
Delivery Quantity
2500 pcs/reel
500 pcs/reel
Buy our products or get free samples online at:
www.ams.com/ICdirect
Technical Support is available at:
www.ams.com/Technical-Support
Provide feedback about this document at:
www.ams.com/Document-Feedback
For further information and requests, e-mail us at:
[email protected]
For sales offices, distributors and representatives, please visit:
www.ams.com/contact
Headquarters
ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten
Austria, Europe
Tel: +43 (0) 3136 500 0
Website: www.ams.com
Page 40
Document Feedback
ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − RoHS Compliant & ams Green Statement
RoHS Compliant & ams Green
Statement
RoHS: The term RoHS compliant means that ams AG products
fully comply with current RoHS directives. Our semiconductor
products do not contain any chemicals for all 6 substance
categories, including the requirement that lead not exceed
0.1% by weight in homogeneous materials. Where designed to
be soldered at high temperatures, RoHS compliant products are
suitable for use in specified lead-free processes.
ams Green (RoHS compliant and no Sb/Br): ams Green
defines that in addition to RoHS compliance, our products are
free of Bromine (Br) and Antimony (Sb) based flame retardants
(Br or Sb do not exceed 0.1% by weight in homogeneous
material).
Important Information: The information provided in this
statement represents ams AG knowledge and belief as of the
date that it is provided. ams AG bases its knowledge and belief
on information provided by third parties, and makes no
representation or warranty as to the accuracy of such
information. Efforts are underway to better integrate
information from third parties. ams AG has taken and continues
to take reasonable steps to provide representative and accurate
information but may not have conducted destructive testing or
chemical analysis on incoming materials and chemicals. ams AG
and ams AG suppliers consider certain information to be
proprietary, and thus CAS numbers and other limited
information may not be available for release.
ams Datasheet
[v1-04] 2015-Dec-07
Page 41
Document Feedback
AS5161 − Copyrights & Disclaimer
Copyrights & Disclaimer
Copyright ams AG, Tobelbader Strasse 30, 8141
Unterpremstaetten, Austria-Europe. Trademarks Registered. All
rights reserved. The material herein may not be reproduced,
adapted, merged, translated, stored, or used without the prior
written consent of the copyright owner.
Devices sold by ams AG are covered by the warranty and patent
indemnification provisions appearing in its General Terms of
Trade. ams AG makes no warranty, express, statutory, implied,
or by description regarding the information set forth herein.
ams AG reserves the right to change specifications and prices
at any time and without notice. Therefore, prior to designing
this product into a system, it is necessary to check with ams AG
for current information. This product is intended for use in
commercial applications. Applications requiring extended
temperature range, unusual environmental requirements, or
high reliability applications, such as military, medical
life-support or life-sustaining equipment are specifically not
recommended without additional processing by ams AG for
each application. This product is provided by ams AG “AS IS”
and any express or implied warranties, including, but not
limited to the implied warranties of merchantability and fitness
for a particular purpose are disclaimed.
ams AG shall not be liable to recipient or any third party for any
damages, including but not limited to personal injury, property
damage, loss of profits, loss of use, interruption of business or
indirect, special, incidental or consequential damages, of any
kind, in connection with or arising out of the furnishing,
performance or use of the technical data herein. No obligation
or liability to recipient or any third party shall arise or flow out
of ams AG rendering of technical or other services.
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Document Status
Document Status
Document Status
Product Preview
Preliminary Datasheet
Datasheet
Datasheet (discontinued)
ams Datasheet
[v1-04] 2015-Dec-07
Product Status
Definition
Pre-Development
Information in this datasheet is based on product ideas in
the planning phase of development. All specifications are
design goals without any warranty and are subject to
change without notice
Pre-Production
Information in this datasheet is based on products in the
design, validation or qualification phase of development.
The performance and parameters shown in this document
are preliminary without any warranty and are subject to
change without notice
Production
Information in this datasheet is based on products in
ramp-up to full production or full production which
conform to specifications in accordance with the terms of
ams AG standard warranty as given in the General Terms of
Trade
Discontinued
Information in this datasheet is based on products which
conform to specifications in accordance with the terms of
ams AG standard warranty as given in the General Terms of
Trade, but these products have been superseded and
should not be used for new designs
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AS5161 − Revision Information
Revision Information
Changes from 1.1 (2013-Oct-31) to current revision 1-04 (2015-Dec-07)
Page
1.1 (2013-Oct-31) to 1-02 (2015-Aug-07)
Content was updated to the latest ams design
Noise Suppressor section was removed
Updated Key Benefits & Features
2
Updated Figure 34
25
Added Mechanical Data section
38
Updated Package Drawings & Markings section
39
Updated Figure 42
40
1-02 (2015-Aug-07) to 1-03 (2015-Nov-19)
Removed Linearization of the Output section
Updated text under Detailed Description
9
Updated Figure 13
11
Updated Figure 18
15
1-03 (2015-Nov-19) to 1-04 (2015-Dec-07)
Updated Figure 2
2
Updated Figure 33 [DATA11 (0x0B), DATA12 (0x0C)]
25
Updated Mechanical Data section
38
Note(s) and/or Footnote(s):
1. Page and figure numbers for the previous version may differ from page and figure numbers in the current revision.
2. Correction of typographical errors is not explicitly mentioned.
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ams Datasheet
[v1-04] 2015-Dec-07
AS5161 − Content Guide
Content Guide
ams Datasheet
[v1-04] 2015-Dec-07
1
2
2
3
General Description
Key Benefits & Features
Applications
Block Diagram
4
5
Pin Assignment
Absolute Maximum Ratings
6
6
6
7
8
8
Electrical Characteristics
Operating Conditions
Magnetic Input Specification
Electrical System Specifications
Timing Characteristics
Power Management - Supply Monitor
9
10
10
10
11
12
13
14
15
17
17
Detailed Description
Operation
VDD Voltage Monitor
PWM Output
Programming Parameters
Application Specific Angular Range Programming
Application Specific Programming of the Break Point
Multiple Slope Output
Resolution of Parameters
PWM Output Driver Parameters
Hysteresis Function
18
18
19
19
20
22
23
23
23
25
31
32
35
37
38
Application Information
Recommended Application Schematic
Programming the AS5161
UART Interface for Programming
Frame Organization
WRITE (Command Description)
READ (Command Description)
Baud-Rate Automatic Detection
Baud-Rate Manual Setting (Optional)
OTP Programming Data
READ / WRITE Register Map
READ Only Register Map
Special Registers
Programming Procedure
Mechanical Data
39
40
41
42
43
44
Package Drawings & Markings
Ordering & Contact Information
RoHS Compliant & ams Green Statement
Copyrights & Disclaimer
Document Status
Revision Information
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