MMA7361LR2 데이터 시트보기 (PDF) - Freescale Semiconductor
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MMA7361LR2 Datasheet PDF : 11 Pages
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Table 2. Operating Characteristics
Unless otherwise noted: -40°C < TA < 85°C, 2.2 V < VDD < 3.6 V, Acceleration = 0g, Loaded output(1)
Characteristic
Operating Range(2)
Supply Voltage(3)
Supply Current(4)
Supply Current at Sleep Mode(4)
Operating Temperature Range
Acceleration Range, X-Axis, Y-Axis, Z-Axis
g-Select: 0
g-Select: 1
Output Signal
Zero-g (TA = 25°C, VDD = 3.3 V)(5), (6)
Zero-g(4)
Sensitivity (TA = 25°C, VDD = 3.3 V)
1.5g
6g
Sensitivity(4)
Bandwidth Response
XY
Z
Output Impedance
0g-Detect
Self Test
Output Response
XOUT, YOUT
ZOUT
Input Low
Input High
Noise
Power Spectral Density RMS (0.1 Hz – 1 kHz)(4)
Control Timing
Power-Up Response Time(7)
Enable Response Time(8)
Self Test Response Time(9)
Sensing Element Resonant Frequency
XY
Z
Internal Sampling Frequency
Output Stage Performance
Full-Scale Output Range (IOUT = 3 µA)
Nonlinearity, XOUT, YOUT, ZOUT
Cross-Axis Sensitivity(10)
Symbol
VDD
IDD
IDD
TA
gFS
gFS
VOFF
VOFF, TA
S1.5g
S6g
S,TA
f-3dBXY
f-3dBZ
ZO
0gdetect
Min
Typ
Max
2.2
3.3
3.6
—
400
600
—
3
10
-40
—
+85
—
±1.5
—
—
±6.0
—
1.485
-2.0
740
190.6
-0.0075
—
—
—
-0.4
1.65
±0.5
800
206
±0.002
400
300
32
0
1.815
+2.0
860
221.5
+0.0075
—
—
—
+0.4
Unit
V
μA
μA
°C
g
g
V
mg/°C
mV/g
mV/g
%/°C
Hz
Hz
kΩ
g
ΔgSTXY
ΔgSTZ
VIL
VIH
+0.05
+0.8
VSS
0.7 VDD
nPSD
—
tRESPONSE
—
tENABLE
—
tST
—
fGCELLXY
—
fGCELLZ
—
fCLK
—
VFSO
NLOUT
VXY, XZ, YZ
VSS+0.1
-1.0
-5.0
-0.1
+1.0
—
—
350
1.0
0.5
2.0
6.0
3.4
11
—
—
—
—
+1.2
0.3 VDD
VDD
—
2.0
2.0
5.0
—
—
—
VDD–0.1
+1.0
+5.0
g
g
V
V
μg/ Hz
ms
ms
ms
kHz
kHz
kHz
V
%FSO
%
1. For a loaded output, the measurements are observed after an RC filter consisting of an internal 32kΩ resistor and an external 3.3nF capacitor
(recommended as a minimum to filter clock noise) on the
bandwidth is determined by the Capacitor added on the
analog
output.
output for
f = 1/2π *
each
(32 x
axis
103)
and
* C.
a 0.1μF
C = 3.3
capacitor on VDD -
nF corresponds to
GND. The output sensor
BW = 1507HZ, which is
the minimum to filter out internal clock noise.
2. These limits define the range of operation for which the part will meet specification.
3. Within the supply range of 2.2 and 3.6 V, the device operates as a fully calibrated linear accelerometer. Beyond these supply limits the device
may operate as a linear device but is not guaranteed to be in calibration.
4. This value is measured with g-Select in 1.5g mode.
5. The device can measure both + and – acceleration. With no input acceleration the output is at midsupply. For positive acceleration the output
will increase above VDD/2. For negative acceleration, the output will decrease below VDD/2.
6. For optimal 0g offset performance, adhere to AN3484 and AN3447
7. The response time between 10% of full scale VDD input voltage and 90% of the final operating output voltage.
8. The response time between 10% of full scale Sleep Mode input voltage and 90% of the final operating output voltage.
9. The response time between 10% of the full scale self test input voltage and 90% of the self test output voltage.
10. A measure of the device’s ability to reject an acceleration applied 90° from the true axis of sensitivity.
Sensors
Freescale Semiconductor
MMA7361L
3
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