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ADXL05AH Datasheet(Arkusz danych) 2 Page - Analog Devices

Numer części ADXL05AH
Szczegółowy opis  -1 g to -5 g Single Chip Accelerometer with Signal Conditioning
Pobierz  20 Pages
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ADXL05–SPECIFICATIONS
ADXL05J/A
Parameter
Conditions
Min
Typ
Max
Units
SENSOR INPUT
Measurement Range
Guaranteed Full Scale
–5
+5
g
Nonlinearity
Best Fit Straight Line, 5 g FS
0.2
% of FS
Alignment Error1
±1
Degrees
Transverse Sensitivity
2
±2%
SENSITIVITY
Initial Sensitivity at VPR
+25
°C
175
200
225
mV/g
Initial Sensitivity at VOUT
+25
°C, R3/R1 = 5
0.875
1.000
1.125
V/g
Temperature Drift
3
±0.5
% of Reading
ZERO g BIAS LEVEL
at VPR
Initial Offset
1.50
1.80
2.10
V
vs. Temperature
3
±25/40
mV
vs. Supply
VS = 4.75 V to 5.25 V
10
32
mV/V
NOISE PERFORMANCE
at VPR
Voltage Noise Density
BW = 4 Hz to 1 kHz
500
1000
µg/√Hz
Noise in 100 Hz Bandwidth
5mg rms
Noise in 10 Hz Bandwidth
1.6
mg rms
FREQUENCY RESPONSE
3 dB Bandwidth
4
C1 = 0.022
µF (See Figure 9)
1000
1600
Hz
3 dB Bandwidth
4
C1 = 0.010
µF
4
kHz
Sensor Resonant Frequency
12
kHz
SELF TEST INPUT
Output Change at VPR
5
ST Pin from Logic “0” to “1”
–0.85
–1.00
–1.15
V
Logic “1” Voltage
2.0
V
Logic “0” Voltage
0.8
V
Input Resistance
To Common
50
k
+3.4 V REFERENCE
Output Voltage
3.350
3.400
3.450
V
Output Temperature Drift
3
±5mV
Power Supply Rejection
DC, VS = +4.75 V to +5.25 V
1
10
mV/V
Output Current
Sourcing
500
µA
PREAMPLIFIER OUTPUT
Voltage Swing
0.25
VS – 1.4
V
Current Output
Source or Sink
30
80
µA
Capacitive Load Drive
100
pF
BUFFER AMPLIFIER
Input Offset Voltage
6
Delta from Nominal 1.800 V
±10
±25
mV
Input Bias Current
520
nA
Open-Loop Gain
DC
80
dB
Unity Gain Bandwidth
200
kHz
Output Voltage Swing
IOUT = ± 100 µA
0.25
VS – 0.25
V
Capacitive Load Drive
1000
pF
Power Supply Rejection
DC, VS = +4.75 V to +5.25 V
1
10
mV/V
POWER SUPPLY
Operating Voltage Range
4.75
5.25
V
Quiescent Supply Current
8.0
10.0
mA
TEMPERATURE RANGE
Operating Range J
0
+70
°C
Specified Performance A
–40
+85
°C
Automotive Grade*
–40
+125
°C
NOTES
1Alignment error is specified as the angle between the true and indicated axis of sensitivity, (see Figure 2).
2Transverse sensitivity is measured with an applied acceleration that is 90
° from the indicated axis of sensitivity. Transverse sensitivity is specified as the percent of
transverse acceleration that appears at the VPR output. This is the algebraic sum of the alignment and the inherent sensor sensitivity errors, (see Figure 2).
3Specification refers to the maximum change in parameter from its initial at +25
°C to its worst case value at T
MIN to TMAX.
4Frequency at which response is 3 dB down from dc response assuming an exact C1 value is used. Maximum recommended BW is 6 kHz using a 0.010
µF capacitor, refer to
Figure 9.
5Applying logic high to the self-test input has the effect of applying an acceleration of –5 g to the ADXL05.
6Input offset voltage is defined as the output voltage differential from 1.800 V when the amplifier is connected as a follower. The voltage at this pin has a temperature drift
proportional to that of the 3.4 V reference.
*Contact factory for availability of automotive grade devices.
All min and max specifications are guaranteed. Typical specifications are not tested or guaranteed.
Specifications subject to change without notice.
(TA = TMIN to TMAX, TA = +25 C for J Grade Only, VS = +5 V, @ Acceleration = 0 g,
unless otherwise noted)
–2–
REV. B




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