Freescale Semiconductor FRDM-FXS-MULTI 데이터 시트
FXOS8700CQ
Sensors
Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
13
4.2
Magnetic characteristics (magnetometer)
4.3
Hybrid characteristics
Table 3. Magnetic characteristics @ VDD = 2.5 V, VDDIO = 1.8 V T = 25 °C unless otherwise noted.
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
Measurement range
FS
MAG
±1200
μ
T
Sensitivity
SEN
MAG
0.1
μ
T/LSB
Sensitivity change versus temperature
TCS
MAG
±0.1
%/°C
Zero-flux offset accuracy
(1)
1. After m-cell has been factory trimmed
OFF
MAG
±10
μ
T
Zero-flux offset change with temperature
TCO
MAG
±0.8
μ
T/°C
Hysteresis
(2)(3)
2. Hysteresis is measured by sweeping the applied magnetic field from -1000
μ
T to 1000
μ
T and then back to -1000
μ
T. The difference in the
two readings at -1000
μ
T divided by the swept field range is the hysteresis figure, expressed in% of the full-scale range (FS
MAG
).
HYST
MAG
±0.5
%FS
MAG
Nonlinearity
(3)
Deviation from best-fit straight line
3. Tested over a ±1000
μ
T measurement range.
NL
MAG
±1
%FS
MAG
Temperature sensor sensitivity
0.96
°C/LSB
Magnetometer output noise
ODR = 800 Hz, OSR = 2
Noise
MAG
1.5
μ
T-rms
ODR = 400 Hz, OSR = 4
1.2
ODR = 200 Hz, OSR = 8
0.85
ODR = 100 Hz, OSR = 16
0.6
ODR = 50 Hz, OSR = 32
0.5
ODR = 12.5 Hz, OSR = 128
0.35
ODR = 6.25 Hz, OSR = 256
0.3
ODR = 1.56 Hz, OSR = 1024
0.3
Self-Test output change
(1)(4)
4. Minimum offset is shown with polarity. This means that the actual offset can be a smaller number for negative figures.
X-axis
STOC
MAG
1161
LSB
Y-axis
-1130
LSB
Z-axis
-43
LSB
Operating temperature range
Top
-40
+85
°C
Table 4. Hybrid characteristics @ VDD = 2.5 V, VDDIO = 1.8 V T = 25 °C unless otherwise noted.
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
Maximum output data rate in hybrid mode
ODR
max
400
Hz
Operating temperature range
Top
-40
+85
°C
Output data bandwidth
BW
ODR/2
Hz