MMA7368L Ver la hoja de datos (PDF) - Freescale Semiconductor
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MMA7368L 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
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
Sensitivity(4)
Bandwidth Response
XY
Z
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
VOFF
VOFF, TA
S1.5g
S,TA
f-3dBXY
f-3dBZ
Min
Typ
2.2
3.3
—
400
—
3
-40
—
—
±1.5
1.485
-2.0
740
-0.0075
—
—
1.65
±0.5
800
±0.002
400
300
Max
3.6
600
10
+85
—
1.815
+2.0
860
+0.0075
—
—
Unit
V
μA
μA
°C
g
V
mg/°C
mV/g
%/°C
Hz
Hz
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 resistor and an external 0.1uF capacitor
(recommended as a minimum to filter clock noise) on the analog output for each axis and a 0.1μF capacitor on VDD - 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 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.
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MMA7368L
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