AS5040 View Datasheet(PDF) - austriamicrosystems AG
Part Name
Description
Manufacturer
AS5040 Datasheet PDF : 33 Pages
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AS5040
Data Sheet
Parameter
Magnetic offset
Field non-linearity
Input frequency
(rotational speed of
magnet)
Symbol
Boff
fmag_abs
fmag_inc
Displacement radius
Disp
Chip placement
tolerance
Recommended magnet
material and
temperature drift
Min Typ Max Unit
Note
± 10 mT Constant magnetic stray field
5
% Including offset gradient
10
Hz
Absolute mode: 600 rpm @ readout of 1024
positions (see Table 6)
Incremental mode: no missing pulses at
500 Hz rotational speeds of up to 30,000 rpm (see
Table 6)
0.25
Max. X-Y offset between defined IC package
center and magnet axis (see Figure 21)
mm
0.485
Max. X-Y offset between chip center and
magnet axis.
±0.23
5
mm
Placement tolerance of chip within IC
package (see Figure 23)
-0.12
-0.035
NdFeB (Neodymium Iron Boron)
%/K
SmCo (Samarium Cobalt)
Electrical System Specifications
(operating conditions: Tamb = -40 to +125°C, VDD5V = 3.0-3.6V (3V operation) VDD5V = 4.5-5.5V (5V operation) unless otherwise
noted)
Parameter
Symbol Min Typ Max Unit
Note
Resolution
7 bit
8 bit
9 bit
10 bit
Integral non-linearity
(optimum)
Integral non-linearity
(optimum)
Integral non-linearity
Differential non-linearity
Transition noise
Hysteresis
Power-on reset thresholds
On voltage; 300mV typ.
hysteresis
Off voltage; 300mV typ.
hysteresis
Power-up time
System propagation delay
absolute output
RES
LSB
INLopt
INLtemp
INL
DNL
TN
Hyst
10
2.813
1.406
0.703
0.352
± 0.5
± 0.9
± 1.4
± 0.176
0.12
0.704
bit 0.352 deg
Adjustable resolution only available
deg for incremental output modes;
Least significant bit, minimum step
deg
deg
deg
deg
Deg
RMS
deg
Maximum error with respect to the
best line fit.
Verified at optimum magnet
placement, Tamb =25 °C.
Maximum error with respect to the
best line fit.
Verified at optimum magnet
placement ,
Tamb = -40 to +125°C
Best line fit = (Errmax – Errmin) / 2
Over displacement tolerance with
6mm diameter magnet, Tamb = -40 to
+125°C
10bit, no missing codes
RMS equivalent to 1 sigma
Incremental modes only
Von
1.37 2.2
2.9
Voff
1.08 1.9
2.6
DC supply voltage 3.3V (VDD3V3)
V
DC supply voltage 3.3V (VDD3V3)
tPwrUp
tdelay
50
ms Until offset compensation finished
48
µs Includes delay of ADC and DSP
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Revision 2.10
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