ADXL190 Ver la hoja de datos (PDF) - Analog Devices
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ADXL190 Datasheet PDF : 5 Pages
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ADXL190–SPECIFICATIONS (TA = TMIN to TMAX, VS = +5 V, Acceleration = 0 g unless otherwise noted)
Parameter
SENSOR INPUT
Dynamic Range1, 2, 3
Alignment Error
Nonlinearity
Cross Axis Sensitivity
Conditions
Without Zero-g Adjust
ADXL190WQC
Min
Typ
Max
± 105
±1
0.2
±2
Units
g
Degrees
%
%
SENSITIVITY
Initial4
Temperature Drift5
Ratiometric
∆ from +25°C
16.5
18.0
19.5
± 0.5
mV/g
%
ZERO g BIAS LEVEL
Initial2, 3
0 g Offset vs. Temperature5
Zero g Adjustment Gain
Zero g Adjust Pin Input Impedance
Ratiometric
∆ from +25°C
2.3
2.5
2.7
1.0
0.45
0.50
0.55
20
30
40
V
g
∆VOUT/∆V 0 g Adjust
kΩ
NOISE PERFORMANCE
Noise Density
4
12
mg/√Hz rms
FREQUENCY RESPONSE
3 dB Bandwidth
Sensor Resonant Frequency
360
400
Hz
24
kHz
SELF-TEST
Output Change6
Logic “1” Voltage
Logic “0” Voltage
Input Impedance
450
990
mV
3.5
V
1.0
V
50
kΩ
ANALOG OUTPUT
Output Voltage Range
Capacitive Load Drive
IOUT = ± 100 µA
0.25
1000
VS – 0.25 V
pF
POWER SUPPLY
Specified Performance
Quiescent Supply Current
4.75
5.25
V
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 VS/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 VS/5 V)] + [(accel) (b VS + c VS2)(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 TMIN or TMAX.
6ST pin Logic “0” to “1”; ∆VOUT = (∆VOUT @ 5 V) × (VS/5 V).
All min and max specifications are guaranteed. Typical specifications are not tested or guaranteed.
Specifications subject to change without notice.
–2–
REV. 0
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