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ADXL190 Datasheet(Arkusz danych) 2 Page - Analog Devices

Numer części ADXL190
Szczegółowy opis  Low Cost -100 gSingle Axis Accelerometer with Analog Output
Pobierz  5 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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REV. 0
–2–
ADXL190–SPECIFICATIONS
ADXL190WQC
Parameter
Conditions
Min
Typ
Max
Units
SENSOR INPUT
Dynamic Range
1, 2, 3
Without Zero-g Adjust
±105
g
Alignment Error
±1
Degrees
Nonlinearity
0.2
%
Cross Axis Sensitivity
±2%
SENSITIVITY
Initial
4
Ratiometric
16.5
18.0
19.5
mV/g
Temperature Drift
5
∆ from +25°C
±0.5
%
ZERO g BIAS LEVEL
Initial
2, 3
Ratiometric
2.3
2.5
2.7
V
0 g Offset vs. Temperature
5
∆ from +25°C
1.0
g
Zero g Adjustment Gain
0.45
0.50
0.55
∆V
OUT/
∆V 0 g Adjust
Zero g Adjust Pin Input Impedance
20
30
40
k
NOISE PERFORMANCE
Noise Density
4
12
mg/
√Hz rms
FREQUENCY RESPONSE
3 dB Bandwidth
360
400
Hz
Sensor Resonant Frequency
24
kHz
SELF-TEST
Output Change
6
450
990
mV
Logic “1” Voltage
3.5
V
Logic “0” Voltage
1.0
V
Input Impedance
50
k
ANALOG OUTPUT
Output Voltage Range
IOUT =
±100 µA0.25
VS – 0.25
V
Capacitive Load Drive
1000
pF
POWER SUPPLY
Specified Performance
4.75
5.25
V
Quiescent Supply Current
2.0
5.0
mA
TEMPERATURE RANGE
Specified Performance
–40
+105
°C
NOTES
1Product is tested at
±50 g, and the combination of 0-g error, sensitivity error, and output voltage swing measurements provide the calculations for dynamic range.
20-g is nominally V
S/2. Use of the 0-g adjustment pin is used to null the 0- g error, resulting in increased dynamic range. It can also be used to create an asymmetrical
dynamic range if so desired.
3The output response is ratiometric and is described by the following equation. V
OUT (accel, VS) = [VS/2
±(a V
S/5 V)] + [(accel) (b VS + c VS
2)(1
± 0.08)]
Where a = 0.2 V, b = 2.712
× 10–3 1/g , c = 0.178 × 10–3 1/g/V.
4Measured at 100 Hz,
± 50 g.
5Specification refers to the maximum change in parameter from its initial value at +25
°C to its worst case value at T
MIN or TMAX.
6ST pin Logic “0” to “1”;
∆V
OUT = (
∆V
OUT @ 5 V)
× (V
S/5 V).
All min and max specifications are guaranteed. Typical specifications are not tested or guaranteed.
Specifications subject to change without notice.
(TA = TMIN to TMAX, VS = +5 V, Acceleration = 0 g unless otherwise noted)




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