Техническая Спецификация для Freescale Semiconductor Accelerometer Cube Demo MMA9559LKUBE MMA9559LKUBE
Модели
MMA9559LKUBE
MMA955xL
Sensors
16
Freescale Semiconductor, Inc.
4.7
Supply Current Characteristics
4.8
Accelerometer Transducer Mechanical Characteristics
4.9
ADC Characteristics
Table 8. Supply current characteristics
(1)
1.
All conditions at nominal supply: V
DD
= V
DDA
= 1.8V.
Characteristic
Symbol
Condition(s)
Min
Typ
Max
Unit
Supply current in STOP
NC
mode
I
DD-SNC
Internal clocks disabled
—
2
—
µA
Supply current in STOP
SC
mode
I
DD-SSC
Internal clock in
slow-speed mode
—
15
—
µA
Supply current in RUN mode
(2)
2.
Total current with the analog section active, 16 bits ADC resolution selected, MAC unit used and all peripheral clocks enabled.
I
DD-R
Internal clock in
fast mode
—
3.1
—
mA
Table 9. Accelerometer characteristics
Characteristic
Symbol
Condition(s)
Min
Typ
Max
Unit
Full range
A
FR
2 g
±1.8
±2
±2.2
g
4 g
±3.6
±4
±4.4
8 g
±7.2
±8
±8.8
Sensitivity/resolution
A
SENS
2 g
—
0.061
—
mg/LSB
4 g
—
0.122
—
8 g
—
0.244
—
Zero-g level offset accuracy
(Pre-board mount)
(Pre-board mount)
OFF
PBM
2 g
–100
+100
mg
4 g
8 g
Nonlinearity
Best-fit straight line
Best-fit straight line
A
NL
2 g
—
±0.25
—
% A
FR
4 g
—
±0.5
—
8 g
—
±1
—
Sensitivity change vs.temperature
TC
SA
2 g
—
±0.17
—
%/°C
Zero-g level change vs. temperature
(1)
1.
Relative to 25°C.
TC
Off
—
—
±1.9
—
mg/°C
Zero-g Level offset accuracy
(Post-board mount)
(Post-board mount)
OFF
BM
2 g
–100
+100
mg
4 g
8 g
Output data bandwidth
BW
—
—
ODR/2
—
Hz
Output noise
Noise
2 g, ODR = 488 Hz
—
100
—
µg/sqrt(Hz)
8 gg, ODR = 488 Hz
—
120
—
µg/sqrt(Hz)
Cross-axis sensitivity
—
—
–5
—
5
%
Table 10. ADC characteristics
(1)
Characteristic
Symbol
Condition(s)
Min
Typ
Max
Unit
Input voltage
V
AI
Voltage at AN0 or AN1
0.2
—
1.1
V
Differential input voltage
V
ADI
AN1 - AN0
-0.9
—
0.9
V
Full-scale range
V
FS
—
—
1.8
—
V
Programmable resolution
R
ES
—
10
14
16
Bits
Conversion time @ 14-bits resolution
(Three-sample frame)
(Three-sample frame)
t
c
—
—
207
—
µs