参数资料
型号: KITMMA955XLEVM
厂商: Freescale Semiconductor
文件页数: 16/26页
文件大小: 0K
描述: KIT EVALUATION FOR MMA955XL
标准包装: 1
传感器类型: 加速计,3 轴
传感范围: ±2g,4g,8g
接口: I²C
灵敏度: 0.061mg/LSB,0.122mg/LSB,0.244mg/LSB
嵌入式:
已供物品: 2 个板,线缆,文档
已用 IC / 零件: MMA955XL
4.7
Supply Current Characteristics
Table 8. Supply current characteristics (1)
Characteristic
Supply current in STOP NC mode
Supply current in STOP SC mode
Supply current in RUN mode (2)
Symbol
I DD-SNC
I DD-SSC
I DD-R
Condition(s)
Internal clocks disabled
Internal clock in
slow-speed mode
Internal clock in
fast mode
Min
Typ
2
15
3.1
Max
Unit
μA
μA
mA
1.
2.
All conditions at nominal supply: V DD = V DDA = 1.8V.
Total current with the analog section active, 16 bits ADC resolution selected, MAC unit used and all peripheral clocks enabled.
4.8
Accelerometer Transducer Mechanical Characteristics
Table 9. Accelerometer characteristics
Characteristic
Symbol
Condition(s)
Min
Typ
Max
Unit
2 g
±1.8
±2
±2.2
Full range
A FR
4 g
±3.6
±4
±4.4
g
8 g
2 g
±7.2
±8
0.061
±8.8
Sensitivity/resolution
A SENS
4 g
0.122
mg/LSB
8 g
0.244
2 g
Zero- g level offset accuracy
(Pre-board mount)
OFF PBM
4 g
8 g
2 g
–100
±0.25
+100
mg
Nonlinearity
Best-fit straight line
Sensitivity change vs.temperature
A NL
TC SA
4 g
8 g
2 g
±0.5
±1
±0.17
% A FR
%/°C
Zero- g level change vs. temperature
(1)
TC Off
±1.9
mg/°C
2 g
Zero- g Level offset accuracy
(Post-board mount)
OFF BM
4 g
8 g
–100
+100
mg
Output data bandwidth
Output noise
Cross-axis sensitivity
BW
Noise
2 g , ODR = 488 Hz
8 g g, ODR = 488 Hz
–5
ODR/2
100
120
5
Hz
μ g /sqrt(Hz)
μ g /sqrt(Hz)
%
1.
4.9
Relative to 25°C.
ADC Characteristics
Table 10. ADC characteristics (1)
Characteristic
Input voltage
Differential input voltage
Full-scale range
Programmable resolution
Conversion time @ 14-bits resolution
(Three-sample frame)
Symbol
V AI
V ADI
V FS
R ES
t c
Condition(s)
Voltage at AN0 or AN1
AN1 - AN0
Min
0.2
-0.9
10
Typ
1.8
14
207
Max
1.1
0.9
16
Unit
V
V
V
Bits
μs
MMA955xL
Sensors
16
Freescale Semiconductor, Inc.
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