as5043 austriamicrosystems, as5043 Datasheet - Page 22

• Manufacturer Part Number: as5043
• Description: 10-bit Programmable 360? Magnetic Angle Encoder With Absolute Digital And Analog Outputs
• Manufacturer: austriamicrosystems

AS5043 Programmable 360° Magnetic Angle Encoder
19.3.6
19.4 Magnetic Input Specification
(operating conditions: T
unless otherwise noted)
Two-pole cylindrical diametrically magnetised source:
Revision 1.6, 3-Oct-06
Power Supply Range
Parallel Load Capacitance
Parallel Load Resistance
Open Loop Gain
Offset Voltage RTI
Output Range Low
Output Range High
current capability sink
current capability source
Output noise
OPAMP gain (non-inverting)
Parameter
Parameter
Diameter
Thickness
Magnetic input field amplitude
Magnetic offset
Field non-linearity
Input frequency
(rotational speed of magnet)
Displacement radius
Recommended magnet material
and temperature drift
OPAMP output stage
amb
= -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation)
VDD5V
CL
RL
A0
VosOP
VoutL
VoutH
Isink
Isource
V
Gain
Symbol
noi se
Symbol
d
t
B
B
f
f
Disp
mag
mag_abs
mag_inc
mag
pk
off
Min
0.95 * VDD5V
Min
160
3.0
4.7
4.8
4.6
92
-5
1
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2.5
45
4
Typ
-0.035
-0.12
Typ
6
130
220
2
Max
± 10
0.25
166
75
10
5
Max
0.05 * VDD5V V
Unit
%/K
mm
mm
mm
mT
mT
Hz
Hz
%
100
144
490
5.5
50
66
5
4
Note
Recommended magnet: Ø 6mm x 2.5mm for cylindrical
magnets
Required vertical component of the magnetic field strength on
the die’s surface, measured along a concentric circle with a
radius of 1.1mm
Constant magnetic stray field
Including offset gradient
Absolute mode: 600 rpm @ readout of 1024 positions
(see table 6)
Incremental mode: no missing pulses at rotational speeds of
up to 10,000 rpm (see table 6)
Max. offset between defined device center and magnet axis
NdFeB (Neodymium Iron Boron)
SmCo (Samarium Cobalt)
pF
V
kΩ
dB
mV
V
mA
mA
µVrms
Unit
3.3V operation
3 sigma
Linear range of analog output
Permanent
V
Permanent
V
Over full temperature range;
BW= 1Hz…10MHz,Gain = 2x
Internal; OTP: FB_int EN = 1
External OTP: FB_int EN = 0
(default)
With external resistors, pins Vout
[#12] and FB [#11]: see
Note
out
out
to VDD5V
to VSS
short
short
circuit
circuit
Figure 14
Page 22 of 26
current:
current: