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參數(shù)資料
| 型號(hào)： | MMA1250EG |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | Low G Micromachined Accelerometer |
| 中文描述： | 低摹微加速度計(jì) |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 239K |
| 代理商： | MMA1250EG |
MMA1250EG
Sensors
Freescale Semiconductor
3
Table 2. Operating Characteristics
(Unless otherwise noted: –40°C
≤
T
A
≤
+105°C, 4.75
≤
V
DD
≤
5.25, Acceleration = 0g, Loaded output.
(1)
)
1. For a loaded output the measurements are observed after an RC filter consisting of a 1 k
resistor and a 0.1
μ
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 – 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 3g. Sensitivity limits apply to 0Hz acceleration.
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
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
μ
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°) 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.
Characteristic
Symbol
Min
Typ
Max
Unit
Operating Range
(2)
Supply Voltage
(3)
Supply Current
Operating Temperature Range
Acceleration Range
V
DD
I
DD
T
A
g
FS
4.75
1.1
–40
—
5.00
2.1
—
5
5.25
3.0
+105
—
V
mA
°C
g
Output Signal
Zero g (T
A
= 25°C, V
DD
= 5.0 V)
(4)
Zero g (V
DD
= 5.0 V)
Sensitivity (T
A
= 25°C, V
DD
= 5.0 V)
(5)
Sensitivity (V
DD
= 5.0 V)
Bandwidth Response
Nonlinearity
V
OFF
V
OFF
S
S
f
-3dB
NL
OUT
2.25
2.0
380
370
42.5
–1.0
2.5
2.5
400
400
50
—
2.75
3.0
420
430.1
57.5
+1.0
V
V
mV/g
mV/g
Hz
% FSO
Noise
RMS (0.1 Hz – 1.0 kHz)
Spectral Density (RMS, 0.1 Hz – 1.0 KHz)
(6)
n
RMS
n
SD
—
—
2.0
700
4.0
—
mVrms
μ
g/
Self-Test
Output Response (V
DD
= 5.0 V)
Input Low
Input High
Input Loading
(7)
Response Time
(8)
V
ST
V
IL
V
IH
I
IN
t
ST
1.0
V
SS
0.7
V
DD
–300
—
1.25
—
—
–125
2.0
1.5
0.3 V
DD
V
DD
–50
25
V
V
V
μ
A
ms
Status
(9), (10)
Output Low (I
load
= 100
μ
A)
Output High (I
load
= 100
μ
A)
V
OL
V
OH
—
V
DD
– 0.8
—
—
0.4
—
V
V
Output Stage Performance
Electrical Saturation Recovery Time
(11)
Full Scale Output Range (I
OUT
= 200
μ
A)
Capacitive Load Drive
(12)
Output Impedance
t
DELAY
V
FSO
C
L
Z
O
—
V
SS
+ 0.25
—
—
—
—
—
50
2.0
V
DD
– 0.25
100
—
ms
V
pF
Mechanical Characteristics
Transverse Sensitivity
(13)
V
XZ,YZ
—
—
5.0
% FSO
Hz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MMA1250EG | 制造商:Freescale Semiconductor 功能描述:Acceleration Sensor IC |
| MMA1250EGR2 | 功能描述:加速計(jì) - 板上安裝 IC ACCEL Z-AXIS RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| MMA1250KEG | 功能描述:加速計(jì) - 板上安裝 IC ACCEL Z-AXIS RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| MMA1250KEGR2 | 功能描述:加速計(jì) - 板上安裝 IC ACCEL Z-AXIS RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| MMA1251 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Low-g Micromachined Accelerometer |
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