MMA1250EG Freescale, MMA1250EG Datasheet - Page 3
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MMA1250EG
Manufacturer Part Number
MMA1250EG
Description
Manufacturer
Freescale
Datasheet
1.MMA1250EG.pdf
(9 pages)
Specifications of MMA1250EG
Family Name
MMA1250
Package Type
SOIC
Operating Supply Voltage (min)
4.75V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.25V
Operating Temperature (min)
-40C
Operating Temperature (max)
105C
Operating Temperature Classification
Industrial
Product Height (mm)
3.3mm
Mounting
Surface Mount
Pin Count
16
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MMA1250EG
Manufacturer:
FREESCALE
Quantity:
20 000
Sensors
Freescale Semiconductor
Table 2. Operating Characteristics
(Unless otherwise noted: –40°C ≤ T
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
11. Time for amplifiers to recover after an acceleration signal causes them to saturate.
12. Preserves phase margin (60°) to guarantee output amplifier stability.
13. A measure of the device's ability to reject an acceleration applied 90° from the true axis of sensitivity.
Operating Range
Output Signal
Noise
Self-Test
Status
Output Stage Performance
Mechanical Characteristics
1. For a loaded output the measurements are observed after an RC filter consisting of a 1 kΩ resistor and a 0.01 µF 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
4. The device can measure both + and – acceleration. With no input acceleration the output is at midsupply. For positive acceleration the output
5. The device is calibrated at 5g.
6. At clock frequency ≅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
Supply Voltage
Supply Current
Operating Temperature Range
Acceleration Range
Zero g (T
Zero g (V
Sensitivity (T
Sensitivity (V
Bandwidth Response
Nonlinearity
RMS (0.1 Hz – 1.0 kHz)
Spectral Density (RMS, 0.1 Hz – 1.0 KHz)
Output Response (V
Input Low
Input High
Input Loading
Response Time
Output Low (I
Output High (I
Electrical Saturation Recovery Time
Full Scale Output Range (I
Capacitive Load Drive
Output Impedance
Transverse Sensitivity
device may operate as a linear device but is not guaranteed to be in calibration.
will increase above V
whenever the self-test input is high, as a means to check the connectivity of the self-test and Status pins in the application.
Status pin can be reset low if the self-test pin is pulsed with a high input for at least 100 µs, unless a fault condition continues to exist.
(9), (10)
A
DD
= 25°C, V
= 5.0 V)
A
DD
load
(7)
load
(2)
= 25°C, V
(3)
(8)
= 5.0 V)
= 100 µA)
= 100 µA)
DD
DD
Characteristic
DD
(12)
(13)
= 5.0 V)
= 5.0 V)
/2 and for negative acceleration the output will decrease below V
DD
OUT
= 5.0 V)
= 200 µA)
(4)
(5)
(11)
A
≤ +105°C, 4.75 ≤ V
(6)
DD
≤ 5.25, Acceleration = 0g, Loaded output.
Symbol
NL
t
V
n
∆V
DELAY
V
V
V
f
V
V
n
V
g
XZ,YZ
I
-3dB
V
RMS
V
t
Z
T
I
C
OFF
OFF
FSO
DD
S
S
ST
DD
FS
SD
IN
OH
OUT
OL
IL
IH
O
A
ST
L
V
V
0.7 V
SS
DD
4.75
2.25
42.5
–1.0
Min
–40
380
370
V
–50
3.0
2.0
1.0
—
—
—
—
—
—
—
—
—
+ 0.25
SS
–0.8
DD
DD
/2.
–125
5.00
1.25
Typ
400
400
700
2.1
2.5
2.5
2.0
2.0
—
50
—
—
—
—
—
—
—
—
50
—
5
(1)
V
DD
0.3 V
)
430.1
+105
–300
Max
5.25
2.75
57.5
+1.0
V
420
100
3.0
3.0
4.0
1.5
0.4
2.0
5.0
25
—
—
—
—
– 0.25
DD
DD
MMA1250D
µg/
mV/g/V
% FSO
mVrms
% FSO
mV/g
Unit
mA
Hz
µA
ms
ms
°C
pF
W
V
V
V
V
V
V
V
V
V
g
Hz
3