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AS5145H Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers

Part # AS5145H
Description  12-Bit Programmable Magnetic Rotary Encoder
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AS5145H Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers

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Revision 1.17
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AS5145
Datasheet - Electrical Character i s t ics
6.2 System Specifications
TAMB = -40 to +150°C, VDD5V = 3.0 to 3.6V (3V operation) VDD5V = 4.5 to 5.5V (5V operation) unless otherwise noted. Also valid for version I.
Disp
Displacement radius
Max. offset between defined device center
and magnet axis
(see Figure 19)
0.25
mm
Ecc
Eccentricity
Eccentricity of magnet center to rotational axis
100
µm
Recommended magnet material and
temperature drift
NdFeB (Neodymium Iron Boron)
-0.12
%/K
SmCo (Samarium Cobalt)
-0.035
Table 5. Input Specification
Symbol
Parameter
Condition
Min
Typ
Max
Unit
RES
Resolution
0.088 deg
12
bit
INLopt
Integral non-linearity (optimum)
Maximum error with respect to the best line fit.
Centered magnet without calibration, TAMB
=25 ºC.
± 0.5
deg
INLtemp
Integral non-linearity (optimum)
Maximum error with respect to the best line fit.
Centered magnet without calibration,
TAMB = -40 to +150ºC
± 0.9
deg
INL
Integral non-linearity
Best line fit = (Errmax – Errmin) / 2
Over displacement tolerance with 6mm
diameter magnet, without calibration,
TAMB = -40 to +150ºC
± 1.4
deg
DNL
Differential non-linearity
12-bit, no missing codes
± 0.044
deg
TN
Transition noise
1 sigma, fast mode (MODE = 1)
0.06
Deg
RMS
1 sigma, slow mode
(MODE = 0 or open)
0.03
tPwrUp
Power-up time
Fast mode (Mode = 1);
Until status bit OCF = 1
20
ms
Slow mode (Mode = 0 or open);
Until OCF = 1
80
tdelay
System propagation delay
absolute output : delay of ADC, DSP
and absolute interface
Fast mode (MODE = 1)
96
µs
Slow mode (MODE = 0 or open)
384
tdelayINC
System propagation delay
incremental output AS5145A and
AS5145B: delay of ADC, DSP and
incremental interface
Only fast mode possible
192
µs
fS
Internal sampling rate for absolute
output:
TAMB = 25ºC, slow mode
(MODE=0 or open)
2.48
2.61
2.74
kHz
TAMB = -40 to +150ºC, slow mode (MODE=0
or open)
2.35
2.61
2.87
fS
Internal sampling rate for absolute
output
TAMB = 25ºC, fast mode
(MODE = 1)
9.90
10.42
10.94
kHz
TAMB = -40 to +150ºC, fast mode
(MODE=1)
9.38
10.42
11.46
CLK/SEL
Read-out frequency
Max. clock frequency to read out serial data
1
MHz
Table 4. Magnetic Input Specification
Symbol
Parameter
Condition
Min
Typ
Max
Unit


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