as5055 austriamicrosystems, as5055 Datasheet - Page 5

• Manufacturer Part Number: as5055
• Description: Low Power 12 Bit Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5055
Data Sheet – General Specifications
7.3
Table 4. System Parameters
Notes:
7.4
Digital pads: MISO, MOSI, SCK, SS/, EN_INT/, INT/, Wire_mode
Table 5. DC/AC Characteristics
8 User Programming
The AS5055 does not require any programming by the user. A dedicated on-chip zero position programming is not
implemented. If a zero position programming is required, it is recommended to store the zero position offset in the host
controller.
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Parameter
Operating current
Operating current
Operating current
Readout rate
Power down current
Lateral displacement range
Magnetic field strength
Serial interface
Resolution; magnetic field
measurement
Resolution; angle
INL
IC package
Parameter
High level input voltage
Low level input voltage
Low level input voltage
Input leakage current
High level output voltage
Low level output voltage
Capacitive load
(1) Without the time for the SPI interface
(2) Centre of the magnet to the centre of the die
(3) Best-fit line - over supply, displacement and temperature – but without quantization
System Parameters
DC/AC Characteristics
Symbol
Symbol
I_max
I_100
I_10
Rd
I
B
V
V
LEAK
V
V
V
C
Z
OH
OL
IH
IL
IL
L
-1.41
Min
320
0.7 * VDDp
30
VDDp - 0.5
-
Min
QFN 4x4x0.85
Typ
12
12
-
SPI mode 0 (CPOL = 0 / CPHA =0)
Revision 1.2
Typ
+/- 0.5
Max
1.41
430
0.5
8.5
53
80
3
0.25 * VDDp
0.3 * VDDp
VSS + 0.4
degree
Unit
Max
mm
mA
mA
mT
µA
µA
µs
bit
bit
35
1
Note
Average current @ 10 ms
readout rate (1)
Average current @ 100 ms
readout rate
Max readout rate
Time between READ ANGLE
command and INTERRUPT
Power down current
(2)
Programming version
(3)
Unit
µA
pF
V
V
V
V
V
Note
VDDp > 2.7V
VDDp < 2.7V
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