as5510 austriamicrosystems, as5510 Datasheet - Page 7

• Manufacturer Part Number: as5510
• Description: Linear Hall Sensor With I 2 C Output
• Manufacturer: austriamicrosystems

AS5510
Data Sheet
Notes:
8 I²C Interface
The AS5510 includes an I²C slave according to the NXP specification UM10204.
Not implemented:
The communication from the AS5510 includes:
Note: the I²C address of the chip is selected by hardware (pin ADR). Depending on the state of this pin, the I²C
address is either
Pin ADR = LOW
Pin ADR = HIGH
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Power-on time (4)
ADC sampling frequency
System propagation delay
Input related noise (5)
ADC sampling frequency
System propagation delay
Input related noise (5)
(1) Offset
(2) Linearity error =
(3) This time is needed for the first power-up of the device until the offset compensation is finished; Includes
(4) Time after switching from power-down mode into active mode until the offset compensation is finished
(5) Input related Noise (NoiseInp) is the repeatability of the measurement
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readout of the PPROM fuses ; It depends on the sensitivity setting
7-bit slave address 101011x, the last address bit x is set by the ADR pin (0 or 1)
Random/Sequential Read
Byte/Page Write
Fast-mode plus with 20mA SDA drive strength
Internal hold time of 120ns for SDA signal is included (Start/Stop detection)
10-bit Slave Address
Clock Stretching
General Call Address
General Call – Software Reset
Read of Device ID
reading the magnetic field strength in 10-bit data
reading the status bits
Parameter
lin
_
error
inp
= 0.35mT residual offset + 0.1mT earth magnetic field
=
1
−
⎛
⎜
⎜
⎜
⎜
⎝
I²C address = 1010110b (56h)
I²C address = 1010111b (57h)
2
( *
Noiseinp
Noiseinp
Symbol
tPwrOn
adc
tdelay
tdelay
adc
fS
fS
_
_
out
out
Slow mode (I²C command option)
(max
Min
⎛
⎜
⎝
Fast mode (default setting)
max
2
B
)
B
250
Typ
Revision 1.25
−
⎞
⎟
⎠
adc
−
adc
_
12.5
Max
out
0.8
0.5
20
50
50
_
out
(
zeroB
(
zeroB
mTpp
mTpp
Unit
kHz
kHz
µs
µs
µs
)
)
⎞
⎟
⎟
⎟
⎟
⎠
Time after switching from power-down
mode into active mode until the offset
compensation is finished
After offset compensation finished
After offset compensation finished
Equivalent to 8 * rms
After offset compensation finished
After offset compensation finished
Equivalent to 8 * rms
*
100
Note
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