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MMA1200 Datasheet

  • MMA1200

  • Freescale Semiconductor, Inc [Surface Mount Micromachined A...

  • FREESCALE

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Table 2. Operating Characteristics
(Unless otherwise noted: 鈥?0擄C
鈮?/div>
T
A
鈮?/div>
+105擄C, 4.75
鈮?/div>
V
DD
鈮?/div>
5.25, Acceleration = 0g, Loaded output
(1)
)
Characteristic
Operating Range
(2)
Supply Voltage
(3)
Supply Current
Operating Temperature Range
Acceleration Range
Output Signal
Zero g (T
A
= 25擄C, V
DD
= 5.0 V)
(4)
Zero g
Sensitivity (T
A
= 25擄C, V
DD
= 5.0 V)
(5)
Sensitivity
Bandwidth Response
Nonlinearity
Noise
RMS (0.1-1 kHz)
Power Spectral Density
Clock Noise (without RC load on output)
(6)
Self-Test
Output Response
Input Low
Input High
Input Loading
(7)
Response Time
(8)
Status
(9),(10)
Output Low (I
load
= 100
碌A)
Output High (I
load
= 100
碌A)
Minimum Supply Voltage (LVD Trip)
Clock Monitor Fail Detection Frequency
Output Stage Performance
Electrical Saturation Recovery Time
(11)
Full Scale Output Range (I
OUT
= 200
碌A)
Capacitive Load Drive
(12)
Output Impedance
Mechanical Characteristics
Transverse Sensitivity
(13)
Package Resonance
Symbol
V
DD
I
DD
T
A
g
FS
V
OFF
V
OFF,V
S
S
V
f
鈥?dB
NL
OUT
n
RMS
n
PSD
n
CLK
g
ST
V
IL
V
IH
I
IN
t
ST
V
OL
V
OH
V
LVD
f
min
t
DELAY
V
FSO
C
L
Z
O
V
XZ,YZ
f
PKG
Min
4.75
3.0
鈥?0
鈥?/div>
2.35
0.47 V
DD
7.6
1.49
360
鈥?.0
鈥?/div>
鈥?/div>
鈥?/div>
55
V
SS
0.7
脳
V
DD
鈥?0
鈥?/div>
鈥?/div>
V
DD
鈥?.8
2.7
50
鈥?/div>
0.25
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Typ
5.00
鈥?/div>
鈥?/div>
281
2.5
0.50 V
DD
8.0
1.6
400
鈥?/div>
鈥?/div>
110
2.0
75
鈥?/div>
鈥?/div>
鈥?00
2.0
鈥?/div>
鈥?/div>
3.25
鈥?/div>
0.2
鈥?/div>
鈥?/div>
300
鈥?/div>
10
Max
5.25
6.0
+125
鈥?/div>
2.65
0.53 V
DD
8.4
1.71
440
2.0
2.8
鈥?/div>
鈥?/div>
95
0.3
脳
V
DD
V
DD
鈥?60
10
0.4
鈥?/div>
4.0
260
鈥?/div>
V
DD
鈥?.25
100
鈥?/div>
5.0
鈥?/div>
Unit
V
mA
C
g
V
V
mV/g
mV/g/V
Hz
% FSO
mVrms
碌V/(Hz
1/2
)
mVpk
g
V
V
碌A
ms
V
V
V
kHz
ms
V
pF
鈩?/div>
% FSO
kHz
1. For a loaded output the measurements are observed after an RC filter consisting of a 1 k鈩?resistor and a 0.01
碌F
capacitor to ground.
2. These limits define the range of operation for which the part will meet specification.
3. Within the supply range of 4.75 and 5.25 volts, 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. The device can measure both + and 鈥?acceleration. With no input acceleration the output is at midsupply. For positive acceleration the output
will increase above V
DD
/2 and for negative acceleration the output will decrease below V
DD
/2.
5. The device is calibrated at 35g.
6. At clock frequency
鈮?/div>
70 kHz.
7. The digital input pin has an internal pull-down current source to prevent inadvertent self test initiation due to external board level leakages.
8. Time for the output to reach 90% of its final value after a self-test is initiated.
9. The Status pin output is not valid following power-up until at least one rising edge has been applied to the self-test pin. The Status pin is high
whenever the self-test input is high, as a means to check the connectivity of the self-test and Status pins in the application.
10. The Status pin output latches high if a Low Voltage Detection or Clock Frequency failure occurs, or the EPROM parity changes to odd. The
Status pin can be reset low if the self-test pin is pulsed with a high input for at least 100
碌s,
unless a fault condition continues to exist.
11. Time for amplifiers to recover after an acceleration signal causes them to saturate.
12. Preserves phase margin (60擄) to guarantee output amplifier stability.
13. A measure of the device's ability to reject an acceleration applied 90擄 from the true axis of sensitivity.
MMA1200D
Sensors
Freescale Semiconductor
3

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