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MMA6525KW Datasheet(PDF) 7 Page - Freescale Semiconductor, Inc

Part # MMA6525KW
Description  Dual-Axis SPI Inertial Sensor
PDF  56 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MMA6525KW Datasheet(HTML) 7 Page - Freescale Semiconductor, Inc

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Sensor
Freescale Semiconductor, Inc.
7
MMA65xx
2.4
Electrical Characteristics - Sensor and Signal Chain
VL ≤ (VCC - VSS) ≤ VH, TL ≤ TA ≤ TH, |ΔTA| < 25 K/min unless otherwise specified.
#
Characteristic
Symbol
Min
Typ
Max
Units
53
54
55
Digital Sensitivity (SPI)
80g (12-Bit Output)
105.5g (12-Bit Output)
120g (12-Bit Output)
*
*
*
SENS
SENS
SENS
—
—
—
24.0
18.2
16.0
—
—
—
LSB/g
LSB/g
LSB/g
(1,9)
(1,9)
(1,9)
56
57
58
Sensitivity Error
TA = 25°C
-40°C
≤ T
A ≤ 105°C
-40°C
≤ T
A ≤ 105°C,VCC_UV_f ≤ VCC - VSS ≤ VL
*
*
ΔSENS
ΔSENS
ΔSENS
-4
-5
-5
—
—
—
+4
+5
+5
%
%
%
(1)
(1)
(3)
59a
60a
61a
62a
Offset at 0g (105.5g 120g Range, No Offset Cancellation)
12 bits, unsigned
12 bits, signed
12 bits, unsigned, VCC_UV_f ≤ VCC - VSS ≤ VL
12 bits, signed, VCC_UV_f ≤ VCC - VSS ≤ VL
*
*
OFFSET
OFFSET
OFFSET
OFFSET
1988
-60
1988
-60
2048
0
—
—
2108
+60
1988
-60
LSB
LSB
LSB
LSB
(1)
(1)
(3)
(3)
63a
64a
65a
66a
Offset at 0g (80g Range, No Offset Cancellation)
12 bits, unsigned
12 bits, signed
12 bits, unsigned, VCC_UV_f ≤ VCC - VSS ≤ VL
12 bits, signed, VCC_UV_f ≤ VCC - VSS ≤ VL
*
*
OFFSET
OFFSET
OFFSET
OFFSET
1968
-80
1968
-80
2048
0
—
—
2128
+80
1968
-80
LSB
LSB
LSB
LSB
(1)
(1)
(3)
(3)
67b
68b
69b
70b
Offset at 0g (With Offset Cancellation)
12 bits, unsigned
12 bits, signed
12 bits, unsigned, VCC_UV_f ≤ VCC - VSS ≤ VL
12 bits, signed, VCC_UV_f ≤ VCC - VSS ≤ VL
*
*
OFFSET
OFFSET
OFFSET
OFFSET
2047.75
-0.25
2047.75
-0.25
2048
0
—
—
2048.25
+0.25
2048.25
+0.25
LSB
LSB
LSB
LSB
(9,7)
(9,7)
(9)
(9)
71
72
Offset Monitor Thresholds
Positive Threshold (12 bits signed)
Negative Threshold (12 bits signed)
OFFTHRPOS
OFFTHRNEG
—
—
100
-100
—
—
LSB
LSB
(7)
(7)
73
74
75
76
Range of Output (SPI, 12 bits, unsigned)
Normal
Fault Response Code
Unused Codes
Unused Codes
RANGE
FAULT
UNUSED
UNUSED
128
—
1
3969
—
0
—
—
3968
—
127
4095
LSB
LSB
LSB
LSB
(7)
(7)
(7)
(7)
77
78
79
Range of Output (SPI, 12 bits, signed)
Normal
Unused Codes
Unused Codes
RANGE
UNUSED
UNUSED
-1920
-2047
1921
—
—
—
1920
-1921
2047
LSB
LSB
LSB
(7)
(7)
(7)
80
Nonlinearity
*
NLOUT
-1
—
1
% FSR
(3)
81
82
System Output Noise
RMS (12 bits, All Ranges, 400 Hz, 3-pole LPF)
Peak to Peak (12 bits, All Ranges, 400 Hz, 3-pole LPF)
nRMS
nP-P
—
—
—
—
1
3
LSB
LSB
(3)
(3)
83
84
85
86
Cross-Axis Sensitivity
VZX
VYX
VZY
VXY
*
*
*
*
VZX
VYX
VZY
VXY
-4
-4
-4
-4
—
—
—
—
+4
+4
+4
+4
%
%
%
%
(3)
(3)
(3)
(3)



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