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AS5043ASST Datasheet(PDF) 30 Page - ams AG

Part # AS5043ASST
Description  Programmable 360 Magnetic Angle Encoder with Absolute SSI and Analog Outputs
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS5043ASST Datasheet(HTML) 30 Page - ams AG

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AS5043
Data Sheet – Electrical Characteristics
www.austriamicrosystems.com
Revision 1.80
30 – 36
19.3.6 OPAMP Output Stage
Parameter
Symbol
Min
Typ
Max
Unit
Note
Power Supply Range
VDD5V
3.0
5.5
V
Parallel Load
Capacitance
CL
100
pF
Parallel Load Resistance
RL
4.7
k
Ω
3.3V operation
Open Loop Gain
A0
92
130
144
dB
Offset Voltage RTI
VosOP
-5
5
mV
3 sigma
Output Range Low
VoutL
0.05 *
VDD5V
V
Output Range High
VoutH
0.95 *
VDD5V
V
Linear range of analog output
Current capability sink
Isink
4.8
50
mA
Permanent short circuit current:
Vout to VDD5V
Current capability source
Isource
4.6
66
mA
Permanent short circuit current:
Vout to VSS
Output noise
Vnoise
160
220
490
µVrms
Over full temperature range;
BW= 1Hz…10MHz,Gain = 2x
2
Internal; OTP: FB_int EN = 1
OPAMP gain (non-
inverting)
Gain
1
4
External OTP: FB_int EN = 0
(default)
With external resistors, pins Vout
[#12] and FB [#11]: see Figure 14
19.4 Magnetic Input Specification
(operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless
otherwise noted)
Two-pole cylindrical diametrically magnetised source:
Parameter
Symbol
Min
Typ
Max
Unit
Note
Diameter
dmag
4
6
mm
Thickness
tmag
2.5
mm
Recommended magnet: Ø 6mm x 2.5mm for
cylindrical magnets
Magnetic input field
amplitude
Bpk
45
75
mT
Required vertical component of the magnetic
field strength on the die’s surface, measured
along a concentric circle with a radius of 1.1mm
Magnetic offset
Boff
± 10
mT
Constant magnetic stray field
Field non-linearity
5
%
Including offset gradient
fmag_abs
10
Hz
Absolute mode: 600 rpm @ readout of 1024
positions (see table 6)
Input frequency
(rotational speed of
magnet)
fmag_inc
166
Hz
Incremental mode: no missing pulses at
rotational speeds of up to 10,000 rpm (see
table 6)
Displacement radius
Disp
0.25
mm
Max. offset between defined device center and
magnet axis
-0.12
NdFeB (Neodymium Iron Boron)
Recommended magnet
material and
temperature drift
-0.035
%/K
SmCo (Samarium Cobalt)


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