AMS AS5306 Position Sensor Datasheet
The AMS AS5304 is a high-performance magnetic rotary encoder that provides precise angular position and speed information for various applications. It offers non-contact motion sensing with high reliability and durability, making it ideal for harsh environments. The AS5304 features single-chip design with integrated Hall elements, allowing for off-axis rotary motion detection using multi-pole magnetic strips or rings. It delivers incremental quadrature outputs with a resolution of up to 12.3 bits, enabling accurate position measurement.
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General Description
AS5304/AS5306
Integrated Hall ICs for Linear and
Off-Axis Rotary Motion Detection
The AS5304/AS5306 are single-chip ICs with integrated Hall elements for measuring linear or rotary motion using multi-pole magnetic strips or rings. This allows the usage of the
AS5304/AS5306 in applications where the Sensor IC cannot be mounted at the end of a rotating device (e.g. at hollow shafts).
Instead, the AS5304/AS5306 are mounted off-axis underneath a multi-pole magnetized ring or strip and provides a quadrature incremental output with 40 pulses per pole period at speeds of up to 20 meters/second (AS5304) or 12 meters/second
(AS5306).
A single index pulse is generated once for every pole pair at the
Index output. Using, for example, a 32pole-pair magnetic ring, the AS5304/AS5306 can provide a resolution of 1280 pulses/revolution, which is equivalent to 5120 positions/revolution or 12.3bit. The maximum speed at this configuration is 9375 rpm.
The pole pair length is 4mm (2mm north pole / 2mm south pole) for the AS5304, and 2.4mm (1.2mm north pole / 1.2mm south pole) for the AS5306. The chip accepts a magnetic field strength down to 5mT (peak). Both chips are available with
push-pull outputs (AS530xA)
or with
open drain outputs (AS530xB)
.
The AS5304/AS5306 are available in a small 20-pin TSSOP package and specified for an operating ambient temperature of -40°C to 125°C.
and
Content Guide appear at end of
datasheet.
ams Datasheet
[v2-00] 2017-May-03
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AS5304/AS5306 −
General Description
Key Benefits and Features
The benefits and features of this device are listed below:
Figure 1:
Added Value of Using AS5304/AS5306
Benefits
•
Contactless motion and position sensing
•
High speed measurement
•
Robust against external magnetic stray fields
Features
•
Highest reliability and durability in harsh environments
•
Control of high speed movements
•
Lower material cost (no magnetic shielding needed)
•
High speed, up to 20m/s (AS5304), 12m/s (AS5306)
•
Magnetic pole pair length:
4mm (AS5304)
or
2.4mm
(AS5306)
•
Resolution:
25μm (AS5304)
or
15μm (AS5306)
•
40 pulses / 160 positions per magnetic period
•
1 index pulse per pole pair
•
Linear movement measurement using multi-pole magnetic strips
•
Circular off-axis movement measurement using multi-pole magnetic rings
•
4.5V to 5.5V operating voltage
•
Magnetic field strength indicator, magnetic field alarm for end-of-strip or missing magnet
Applications
The AS5304 and AS5306 are ideal for high speed linear motion and off-axis rotation measurement in applications, such as electrical motors, X-Y-stages, rotation knobs, and industrial drives.
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AS5304/AS5306 −
General Description
Figure 2:
Functional Blocks of the AS5304/06
Block Diagram
The functional blocks of the AS5304 and AS5306 are shown below:
S IN
Hall Array
&
Frontend
Amplifier
CO S
SIN
Signal
Processing
&
Channel
Amplifier
COS
Automatic
Gain
Control
AS5304 / AS5306
ADC
&
DSP
A/ B
Quadrature
Incremental
Interface
&
Index magnetic field alarm
Analog
Output
A
B
Index
AO
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AS5304/AS5306 −
Pin Assignments
Pin Assignments
Figure 3:
Pin Assignments (Top View)
TEST
AO
VDD
INDEX
VSS
A
VDDP
B
NC
NC
4
5
6
7
8
9
10
1
2
3
16
15
14
13
12
11
20
19
18
17
ZPZ
TEST
TEST
TEST
VDDA
TEST_GND
TEST
TEST
TEST
NC
Figure 4:
Pin Description
Pin
Number
1
2
3
4
5,12,13,
14,17,18,19
6
7
8
Pin Name
VSS
A
VDDP
B
TEST
AO
VDD
Index
Pin Type Description
Supply pin
Digital output push pull or open drain (programmable)
Supply pin
Digital output push pull or open drain (programmable)
Supply ground
Incremental quadrature position output A.
Short circuit current limitation
Peripheral supply pin, connect to VDD
Incremental quadrature position output B.
Short Circuit Current Limitation
Analog input/output Test pins, must be left open
Analog output
Supply pin
Digital output push pull or open drain (programmable)
AGC Analog Output. (Used to detect low magnetic field strength)
Positive supply pin
Index output, active HIGH. Short Circuit
Current Limitation
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AS5304/AS5306 −
Pin Assignments
Pin
Number
9,10,11
15
16
20
Pin Name Pin Type
TEST
TEST_GND
VDDA Hall
ZPZmskdis
Analog input/output
Supply pin
Digital input
Description
Test pins, must be left open
Test pin, must be connected to VSS
Hall Bias Supply Support (connected to VDD)
Test input, connect to VSS during operation
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AS5304/AS5306 −
Absolute Maximum Ratings
Absolute Maximum Ratings
Stresses beyond those listed under
may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions beyond those indicated under
Characteristics is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Figure 5:
Absolute Maximum Ratings
Symbol
VDD
V in
I scr
ESD
HBM
Parameter
Supply
Input pin voltage
Input current
(latchup immunity)
Electrostatic discharge (human body model)
Package thermal resistance
Θ
JA
T strg
T body
RH
NC
Storage temperature
Soldering conditions
Relative Humidity non-condensing
Min Max
-0.3
7
VSS-0.5
VDD+0.5
Units
V
V
-100
-55
5
±2
100
114.5
150
260
85 mA
kV
JESD78
Comments
MIL 883 E method 3015
°C /W Still Air / Single Layer PCB
°C
°C IPC/JEDEC J-STD-020
%
MSL Moisture Sensitivity Level 3
Represents a maximum floor life time of 168h
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AS5304/AS5306 −
Electrical Characteristics
Electrical Characteristics
All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical
Quality Control) methods.
Operating Conditions
Figure 6:
Operating Conditions
Symbol
AVDD
DVDD
VSS
IDD
Parameter
Positive supply voltage
Digital supply voltage
Negative supply voltage
Power supply current,
AS5304
Power supply current,
AS5306
Ambient temperature
T amb
T
J
Junction temperature
LSB Resolution
INL
DNL
Hyst
Integral nonlinearity
Differential nonlinearity
Hysteresis
Conditions
A/B/Index, AO unloaded!
AS5304
AS5306
Ideal input signal
(ErrMax - ErrMin) / 2
No missing pulses.
Optimum alignment
Min Typ Max Unit
4.5
5.0
5.5
V
20
-40
-40
0.0
25
0.0
0.0
35
V mA
30
125
150
°C
°C
25
15
μm
2.5
LSB
1 1.5
±0.5
LSB
2 LSB
System Parameters
Figure 7:
System Parameters
Symbol Parameter
T
PwrUp
Power up time
T
Prop
Propagation delay
Conditions
Amplitude within valid range /
Interpolator locked, A B Index enabled
Time between change of input signal to output signal
Min Typ Max Unit
500 μs
20 μs
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AS5304/AS5306 −
Electrical Characteristics
A / B / C Push/Pull or Open Drain Output
Push Pull Mode is set for AS530xA, Open Drain Mode is set for
AS530xB versions.
Figure 8:
Open Drain Output
Symbol
V
OH
Parameter
High level output voltage
I
Short
C
L
R
L
t
R
t
F
V
OL
I
LOH
I
LOL
Low level output voltage
Current source capability
Current sink capability
Short circuit limitation current
Capacitive load
Load resistance
Rise time
Fall time
Conditions
Push/Pull mode
Push/Pull mode
Reduces maximum operating temperature see
see
Push/Pull mode
Min Typ Max Unit
0.8
VDD
V
0.4 +
VSS
V
12
13
14
15 mA mA
39 25
20
820
1.2
1.2
mA
μs
μs pF
Ω
Figure 9:
Typical Digital Load
VDD = 5V
R L = 820O
A/B/Index from
AS5304/6
TTL
74LS00
C L = 20pF
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AS5304/AS5306 −
Electrical Characteristics
CAO Analog Output Buffer
Figure 10:
CAO Analog Output Buffer
Symbol Parameter Conditions Min Typ Max Unit
V
OutRange
V
OutRange
I
V
Offs
I
Short
C
L
L
BW
Minimum output voltage
Maximum output voltage
Strong field, minimum AGC
Weak field, maximum AGC
0.5
3
1
4
1.2
5.1
Offset ±10
Current sink / source capability
Average short circuit current
Reduces maximum operating temperature
5
6 40
Capacitive load
Bandwidth
10
5
V
V mV mA mA pF kHz
Magnetic Input
Figure 11:
Magnetic Input
Symbol
L
P_FP
T
FP
A mag
Off mag
T dmag f mag
Parameter
Magnetic pole length
Magnetic pole pair length
AS5304
AS5306
AS5304
AS5306
Magnetic amplitude
Operating dynamic input range
Magnetic offset
Magnetic temperature drift
Input frequency
Conditions Min Typ Max Unit
2.0
1.2
4.0
2.4
mm mm
10 60 mT
1:6
0
1:12
±0.5
-0.2
5 mT
%/K kHz
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Detailed Description
AS5304/AS5306 −
Detailed Description
The AS5304/AS5306 require a multi-pole magnetic strip or ring with a pole length of 2mm (4mm pole pair length) on the
AS5304, and a pole length of 1.2mm (2.4mm pole pair length) on the AS5306. The magnetic field strength of the multi-pole magnet should be in the range of 5mT to 60mT at the chip surface.
The Hall elements on the AS5304/AS5306 are arranged in a linear array.
By moving the multi-pole magnet over the Hall array, a sinusoidal signal (SIN) is generated internally. With proper configuration of the Hall elements, a second 90° phase shifted sinusoidal signal (COS) is obtained. Using an interpolation circuit, the length of a pole pair is divided into 160 positions and further decoded into 40 quadrature pulses.
An Automatic Gain Control provides a large dynamic input range of the magnetic field.
An Analog output pin (AO) provides an analog voltage that changes with the strength of the magnetic field (see
Electrical Connection
The supply pins VDD, VDDP and VDDA are connected to +5V.
Pins VSS and TEST_GND are connected to the supply ground. A
100nF decoupling capacitor close to the device is recommended.
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AS5304/AS5306 −
Detailed Description
Figure 12:
Electrical Connection of the AS5304 / AS5306
HOST uC
VDD = 5V
10K
AS5304B,
AS5306B
ONLY!
Quadrature
Position A
Quadrature
Position B
Index
No Connect
No Connect
No Connect
1
4
5
6
2
3
7
8
9
10
VSS
A
VDDP
B
TEST
AO
VDD
INDEX
ZPZ
AS5304A
AS5304B
AS5306A
AS5306B
TEST
TEST
TEST
VDDA
TEST_GND
TEST
TEST
NC
NC
TEST
NC
16
15
14
13
12
11
20
19
18
17
No Connect
No Connect
No Connect
No Connect
No Connect
No Connect
No Connect
0.1uF
VDD = 5V
10uF
(optional)
ams Datasheet
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Incremental Quadrature AB Output
The digital output is compatible to optical incremental encoder outputs. Direction of rotation is encoded into two signals A and
B that are phase-shifted by 90º. Depending on the direction of rotation, A leads B (CW) or B leads A (CCW).
Index Pulse
A single index pulse is generated once for every pole pair. One pole pair is interpolated to 40 quadrature pulses (160 steps), so one index pulse is generated after every 40 quadrature pulses
.
The Index output is switched to Index = high, when a magnet is placed over the Hall array as shown in
, top graph: the north pole of the magnet is placed over the left side of the
IC (top view, pin#1 at bottom left) and the south pole is placed over the right side of the IC.
The index output will switch back to Index = low, when the magnet is moved by one LSB from position X=0 to X=X1, as shown in
Figure 14 , bottom graph. One LSB is 25μm for AS5304
and 15μm for AS5306.
Note(s):
Since the small step size of 1 LSB is hardly recognizable in a correctly scaled graph it is shown as an exaggerated step in the bottom graph of
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AS5304/AS5306 −
Detailed Description
Figure 13:
Quadrature A / B and Index Output
S N S N S
A
B
Index
40 1 2
40 1 2
40 1 2
40 1 2
Detail
:
A
B
Index
Step
#
157 158 159 0 1 2 3 4 5
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AS5304/AS5306 −
Detailed Description
Magnetic Field Warning Indicator
The AS5304 can also provide a low magnetic field warning to indicate a missing magnet or when the end of the magnetic strip has been reached. This condition is indicated by using a combination of A, B and Index, that does not occur in normal operation:
A low magnetic field is indicated with:
Index = high
A=B=low
Vertical Distance between Magnet and IC
The recommended vertical distance between magnet and IC depends on the strength of the magnet and the length of the magnetic pole.
Typically, the vertical distance between magnet and chip surface should not exceed ½ of the pole length. That means for
AS5304, having a pole length of 2.0mm, the maximum vertical gap should be 1.0mm. For the AS5306, having a pole length of
1.2mm, the maximum vertical gap should be 0.6mm. These figures refer to the chip surface. Given a typical distance of
0.2mm between chip surface and IC package surface, the recommended vertical distances between
magnet and IC surface
are therefore:
AS 5304: ≤ 0.8mm
AS 5306: ≤ 0.4mm
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AS5304/AS5306 −
Detailed Description
Figure 14:
Magnet Placement for Index Pulse Generation
Hall Array Center Line
Pin 1
Chip Top view
Hall Array Center Line
Pin 1
Chip Top view
X
Magnet drawn at index position X =0
CW magnet movement direction
N S
Index = High
3. 0475±0. 235
25µm (AS5304)
15µm (AS5306)
X
Magnet drawn at position X 1
( exaggerated)
CW magnet movement direction
N S
Index = Low
3. 0475±0. 235
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AS5304/AS5306 −
Detailed Description
Soft Stop Feature for Linear Movement Measurement
When using long multi-pole strips, it may often be necessary to start from a defined home (or zero) position and obtain absolute position information by counting the steps from the defined home position. The AS5304/AS5306 provide a soft stop feature that eliminates the need for a separate electro-mechanical home position switch or an optical light barrier switch to indicate the home position.
The magnetic field warning indicator (see
Warning Indicator ) together with the index pulse can be used
to indicate a unique home position on a magnetic strip:
1.
Firstly, the AS5304/AS5306 move to the end of the strip until a magnetic field warning is displayed (Index = high,
A=B=low).
2.
Then, the AS5304/AS5306 move back towards the strip until the first index position is reached (Note that an index position is generated once for every pole pair, it is indicated with: Index = high, A=B= high). Depending on the polarity of the strip magnet, the first index position may be generated when the end of the magnet strip only covers one half of the Hall array. This position is not recommended as a defined home position, as the accuracy of the AS5304/AS5306 are reduced as long as the multi-pole strip does not fully cover the Hall array.
3.
It is therefore recommended to continue to the next
(second) index position from the end of the strip (Index
= high, A=B= high). This position can now be used as a defined home position.
Incremental Hysteresis
If the magnet is sitting right at the transition point between two steps, the noise in the system may cause the incremental outputs to jitter back and forth between these two steps, especially when the magnetic field is weak.
To avoid this unwanted jitter, a hysteresis has been implemented. The hysteresis lies between 1 and 2 LSB, depending on device scattering.
of 1LSB hysteresis: the horizontal axis is the lateral position of the magnet as it scans across the IC, the vertical axis is the change of the incremental outputs, as they step forward (blue line) with movement in +X direction and backward (red line) in
–X direction.
Note(s):
1LSB = 25μm for AS5304, 15μm for AS5306
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AS5304/AS5306 −
Detailed Description
Figure 15:
Hysteresis of the Incremental Output
Incremental output
X +4
Hysteresis:
1 LSB
X +3
X +2
X +1
X
Magnet position
X X+1 X+2 X+3 X+4
Movement direction: +X
Movement direction: - X
Integral Non-Linearity (INL)
The INL (integral non-linearity) is the deviation between indicated position and actual position. It is better than 1LSB for both AS5304 and AS5306, assuming an ideal magnet. Pole length variations and imperfections of the magnet material, which lead to a non-sinusoidal magnetic field will attribute to additional linearity errors.
Error Caused by Pole Length Variations
show the error caused by a non-ideal pole length of the multi-pole strip or ring. This is less of an issue with strip magnets, as they can be manufactured exactly to specification using the proper magnetization tooling.
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AS5304/AS5306 −
Detailed Description
Figure 16:
Additional Error Caused by Pole Length Variation: AS5304
140
120
100
80
60
40
20
0
1500
AS5304 Systematic Linearity Error caused by Pole
Length Deviation
1700 1900 2100
Pole Length [µm ]
Error [µm]
2300 2500
However, when using a ring magnet
, the pole length differs depending on the measurement radius. For optimum performance, it is therefore essential to mount the IC such that the Hall sensors are exactly underneath the magnet at the radius where the pole length is 2.0mm (AS5304) or 1.2mm
(AS5306), see also
.
Note(s):
This is an additional error, which must be added to the intrinsic errors INL
and DNL
.
Figure 17:
Additional Error Caused by Pole Length Variation: AS5306
140
120
100
80
60
40
20
0
900
AS5306 Systematic Linearity Error caused by Pole
Length Deviation
1000 1100 1200 1300
Pole Length [µm ]
Error [µm]
1400 1500
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AS5304/AS5306 −
Detailed Description
Figure 18:
DNL of AS5304 (left) and AS5306 (right)
Dynamic Non-Linearity (DNL)
The DNL (dynamic non-linearity) describes the non-linearity of the incremental outputs from one step to the next. In an ideal system, every change of the incremental outputs would occur after exactly one LSB (e.g. 25μm on AS5304). In practice however, this step size is not ideal, the output state will change after 1LSB ±DNL. The DNL must be < ±½ LSB to avoid a missing code. Consequently, the incremental outputs will change when the magnet movement over the IC is minimum 0.5 LSB and maximum 1.5 LSBs.
AS5304:
DNL (dynamic non-linearity
1 LSB -DNL
12.5 µm
1 LSB + DNL
37.5 µm
1 LSB
25 µm
lateral magnet movement
AS5306:
DNL (dynamic non-linearity
1 LSB -DNL
7.5 µm
1 LSB + DNL
22.5 µm
1 LSB
15 µm
lateral magnet movement
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Detailed Description
The AO Output
The Analog Output (AO) provides an analog output voltage that represents the Automatic Gain Control (AGC) of the Hall sensors signal control loop.
This voltage can be used to monitor the magnetic field strength and hence the gap between magnet and chip surface:
•
Short distance between magnet and IC -> strong magnetic field -> low loop gain -> low AO voltage
•
Long distance between magnet and IC -> weak magnetic field -> high loop gain -> high AO voltage
Figure 19:
AO vs. AGC, Magnetic Field Strength, Magnet-to-IC Gap
V
AO
[V]
5.1
3
1.2
0.5
strong field, low AGC weak field, high AGC recommended range vertical gap
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Application Information
Figure 20:
AS5304 (AS5306) with Multi-Pole Ring Magnet
AS5304/AS5306 −
Application Information
Figure 21:
AS5306 (AS5304) with Magnetic Multi-Pole Strip Magnet for Linear Motion Measurement
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AS5304/AS5306 −
Application Information
Resolution and Maximum Rotating Speed
When using the AS5304/AS5306 in an off-axis rotary application, a multi-pole ring magnet must be used. Resolution, diameter and maximum speed depend on the number of pole pairs on the ring.
Resolution
The angular resolution increases linearly with the number of pole pairs. One pole pair has a resolution (= interpolation factor) of 160 steps or 40 quadrature pulses.
Resolution [steps] = [interpolation factor] x [number of pole pairs]
Resolution [bit] = log (resolution[steps]) / log (2)
Example:
Multi-pole ring with 22 pole pairs
Resolution = 160x22 = 3520 steps per revolution
= 40x22 = 880 quadrature pulses / revolution
= 11.78 bits per revolution = 0.1023° per step
Multi-Pole Ring Diameter
The length of a pole pair across the median of the multi-pole ring must remain fixed at either 4mm (AS5304) or 2.4mm
(AS5306). Hence, with increasing pole pair count, the diameter increases linearly with the number of pole pairs on the magnetic ring.
Magnetic ring diameter = [pole length] * [number of pole pairs] / π
for AS5304: d = 4.0mm * number of pole pairs / π for AS5306: d = 2.4mm * number of pole pairs / π
Example:
(same as above) Multi-pole ring with 22 pole pairs for
AS5304
Ring diameter = 4 * 22 / 3.14 = 28.01mm (this number represents the median diameter of the ring, this is where the
Hall elements of the AS5304/AS5306 should be placed;
For the AS5306, the same ring would have a diameter of:
2.4 * 22 / 3.14 = 16.8mm
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AS5304/AS5306 −
Application Information
Maximum Rotation Speed
The AS5304/AS5306 use a fast interpolation technique allowing an input frequency of 5kHz. This means, it can process magnetic field changes in the order of 5000 pole pairs per second or
300000 revolutions per minute. However, since a magnetic ring consists of more than one pole pair, the above value must be divided by the number of pole pairs to get the maximum rotation speed:
Maximum rotation speed = 300000 rpm / [number of pole pairs]
Example:
(same as above) Multi-pole ring with 22 pole pairs:
Maximum speed = 300000 / 22 = 13636 rpm (this is independent of the pole length)
Maximum Linear Travelling Speed
For linear motion sensing, a multi-pole strip using equally spaced north and south poles is used. The pole length is again fixed at 2.0mm for the AS5304 and 1.2mm for the AS5306. As shown in
above, the sensors can process up to 5000 pole pairs per second, so the maximum travelling speed is:
Maximum linear travelling speed = 5000 * [pole pair length]
Example:
Linear multi-pole strip:
Maximum linear travelling speed = 4mm * 5000 1/s =
20000mm/s = 20m/s {for AS5304}
Maximum linear travelling speed = 2.4mm * 5000 1/s =
12000mm/s = 12m/s {for AS5306}
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AS5304/AS5306 −
Package Drawings & Markings
Package Drawings & Markings
Figure 22:
Packaging Drawings and Dimensions
The devices are available in a 20-pin TSSOP package.
YYWWMZZ @
AS5304
YYWWMZZ @
AS5306 ams Datasheet
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AS5304/AS5306 −
Pack age Drawings & Mark ings
Figure 23:
Package Dimensions
Symbol Min
E
E1 c
D
A
A1
A2 b e
L
L1
0.09
6.40
-
4.30
-
0.05
0.80
0.19
-
0.45
-
Max
0.20
6.60
-
4.50
1.20
0.15
1.05
0.30
-
0.75
-
Nom
-
-
1.00
-
-
6.50
6.40 BSC
4.40
0.65 BSC
0.60
1.00 REF bbb ccc ddd
N
R
R1
S q
1
θ
2
θ
3 aaa
Symbol Min Nom Max
-
-
-
-
0.09
0.09
0.20
0º
-
-
-
-
-
-
-
-
-
8º
-
-
12 REF
12 REF
0.10
0.10
-
-
-
-
0.05
0.20
20
Note(s):
1. Dimensions and tolerancing conform to ASME Y14.5M-1994.
2. All dimensions are in millimeters. Angles are in degrees.
Figure 24:
Packaging Code
YY
Year
WW M ZZ @
Manufacturing Week Assembly Plant Identifier Assembly Traceability Code Sublot Identifier
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ams Datasheet
[v2-00] 2017-May-03
AS5304/AS5306 −
Package Drawings & Markings
Sensor Placement in Package
TSSOP20 / 0.65mm pin pitch
Figure 25:
Sensor in Package
Die C/L
3.0475±0.235
0.2299±0.100
0.2341±0.100
Package
Outline
0.7701±0.150
Die Tilt Tolerance ±1º
ams Datasheet
[v2-00] 2017-May-03
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AS5304/AS5306 −
Ordering & Contac t Information
Ordering & Contact Information
The devices are available as the standard products shown in the below figure.
Figure 26:
Ordering Information
Delivery
Quantity
Ordering Code Package
AS5304A
AS5304B
AS5306A
AS5306B
20-pin
TSSOP
20-pin
TSSOP
20-pin
TSSOP
20-pin
TSSOP
Description
AS5304
25μm resolution, 2mm Magnet pole length, Push Pull
25μm resolution, 2mm Magnet pole length, Open Drain
AS5306
15μm resolution, 1.2mm Magnet pole length, Push Pull
15μm resolution, 1.2mm Magnet pole length, Open Drain
Delivery
Form
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
4500 pcs/reel
500 pcs/reel
4500 pcs/reel
500 pcs/reel
4500 pcs/reel
500 pcs/reel
4500 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
Tobelbader Strasse 30
8141 Premstaetten
Austria, Europe
Tel: +43 (0) 3136 500 0
Website: www.ams.com
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ams Datasheet
[v2-00] 2017-May-03
AS5304/AS5306 −
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
[v2-00] 2017-May-03
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Copyrights & Disclaimer
AS5304/AS5306 −
Copyrights & Disclaimer
Copyright ams AG, Tobelbader Strasse 30, 8141 Premstaetten,
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
[v2-00] 2017-May-03
AS5304/AS5306 −
Document Status
Document Status
Document Status
Product Preview
Preliminary Datasheet
Datasheet
Datasheet (discontinued)
Product Status
Pre-Development
Pre-Production
Production
Discontinued
Definition
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
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
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
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
ams Datasheet
[v2-00] 2017-May-03
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AS5304/AS5306 −
Revision Information
Revision Information
Changes from 1.9 to current revision 2-00 (2017-May-03)
Content was updated to the latest
ams
design
Updated Figure 1
Updated Figure 22
Updated Figure 24
Updated Figure 26
Note(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.
Page
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ams Datasheet
[v2-00] 2017-May-03
AS5304/AS5306 −
Content Guide
Content Guide
1 General Description
2 Key Benefits and Features
2 Applications
3 Block Diagram
4 Pin Assignments
6 Absolute Maximum Ratings
7 Electrical Characteristics
7 Operating Conditions
7 System Parameters
8 A / B / C Push/Pull or Open Drain Output
9 CAO Analog Output Buffer
9 Magnetic Input
10 Detailed Description
10 Electrical Connection
11 Incremental Quadrature AB Output
11 Index Pulse
13 Magnetic Field Warning Indicator
13 Vertical Distance between Magnet and IC
15 Soft Stop Feature for Linear Movement Measurement
15 Incremental Hysteresis
16 Integral Non-Linearity (INL)
16 Error Caused by Pole Length Variations
18 Dynamic Non-Linearity (DNL)
19 The AO Output
20 Application Information
21 Resolution and Maximum Rotating Speed
21 Resolution
21 Multi-Pole Ring Diameter
22 Maximum Rotation Speed
22 Maximum Linear Travelling Speed
23 Package Drawings & Markings
25 Sensor Placement in Package
26 Ordering & Contact Information
27 RoHS Compliant & ams Green Statement
28 Copyrights & Disclaimer
29 Document Status
30 Revision Information
ams Datasheet
[v2-00] 2017-May-03
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