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| 型号： | MMA7368LR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 3/11页 |
| 文件大小： | 0K |
| 描述： | ACCELEROMETER 1.5G 3AXIS 14-LGA |
| 产品变化通告： | MMA73x Family Discontinuation 04/May/2010 |
| 标准包装： | 5,000 |
| 轴： | X，Y，Z |
| 加速范围： | ±1.5g |
| 灵敏度： | 800mV/g |
| 电源电压： | 2.2 V ~ 3.6 V |
| 输出类型： | 模拟 |
| 带宽： | 400Hz - XY，300Hz - Z |
| 接口： | 并联 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-VFLGA |
| 供应商设备封装： | 14-LGA（3x5） |
Table 2. Operating Characteristics
Unless otherwise noted: -40°C < T A < 85°C, 2.2 V < V DD < 3.6 V, Acceleration = 0g, Loaded output (1)
Characteristic
Symbol
Min
Typ
Max
Unit
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
V DD
I DD
I DD
T A
g FS
2.2
—
—
-40
—
3.3
400
3
—
±1.5
3.6
600
10
+85
—
V
μ A
μ A
°C
g
Output Signal
Zero-g (T A = 25°C, V DD = 3.3 V) (5), (6)
Zero-g (4)
V OFF
V OFF , T A
1.485
-2.0
1.65
±0.5
1.815
+2.0
V
mg/°C
Sensitivity (T A = 25°C, V DD = 3.3 V)
1.5g
Sensitivity (4)
S 1.5g
S,T A
740
-0.0075
800
±0.002
860
+0.0075
mV/g
%/°C
Bandwidth Response
XY
Z
f -3dBXY
f -3dBZ
—
—
400
300
—
—
Hz
Hz
Self Test
Output Response
X OUT , Y OUT
Z OUT
Input Low
Input High
Δ g STXY
Δ g STZ
V IL
V IH
-0.05
+0.8
V SS
0.7 V DD
-0.1
+1.0
—
—
—
+1.2
0.3 V DD
V DD
g
g
V
V
Noise
Power Spectral Density RMS (0.1 Hz – 1 kHz) (4)
n PSD
—
350
—
μ g/ Hz
Control Timing
Power-Up Response Time (7)
Enable Response Time (8)
Self Test Response Time (9)
t RESPONSE
t ENABLE
t ST
—
—
—
1.0
0.5
2.0
2.0
2.0
5.0
ms
ms
ms
Sensing Element Resonant Frequency
XY
Z
Internal Sampling Frequency
f GCELLXY
f GCELLZ
f CLK
—
—
—
6.0
3.4
11
—
—
—
kHz
kHz
kHz
Output Stage Performance
Cross-Axis Sensitivity
Full-Scale Output Range (I OUT = 3 μA)
Nonlinearity, X OUT , Y OUT , Z OUT
(10)
V FSO
NL OUT
V XY, XZ, YZ
V SS +0.1
-1.0
-5.0
—
—
—
V DD –0.1
+1.0
+5.0
V
%FSO
%
1. For a loaded output, the measurements are observed after an RC filter consisting of an internal resistor and an external 0.1uF capacitor
(recommended as a minimum to filter clock noise) on the analog output for each axis and a 0.1 μ F capacitor on V DD - GND.
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 V DD /2. For negative acceleration, the output will decrease below V DD /2.
6. For optimal 0g offset performance, adhere to AN3484 and AN3447
7. The response time between 10% of full scale V DD 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.
MMA7368L
Sensors
Freescale Semiconductor
3
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