One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
ADXL05–SPECIFICATIONS
Parameter
SENSOR INPUT
Measurement Range
Nonlinearity
Alignment Error
1
Transverse Sensitivity
2
SENSITIVITY
Initial Sensitivity at V
PR
Initial Sensitivity at V
OUT
Temperature Drift
3
ZERO
g
BIAS LEVEL
Initial Offset
vs. Temperature
3
vs. Supply
NOISE PERFORMANCE
Voltage Noise Density
Noise in 100 Hz Bandwidth
Noise in 10 Hz Bandwidth
FREQUENCY RESPONSE
3 dB Bandwidth
4
3 dB Bandwidth
4
Sensor Resonant Frequency
SELF TEST INPUT
Output Change at V
PR5
Logic “1” Voltage
Logic “0” Voltage
Input Resistance
+3.4 V REFERENCE
Output Voltage
Output Temperature Drift
3
Power Supply Rejection
Output Current
PREAMPLIFIER OUTPUT
Voltage Swing
Current Output
Capacitive Load Drive
BUFFER AMPLIFIER
Input Offset Voltage
6
Input Bias Current
Open-Loop Gain
Unity Gain Bandwidth
Output Voltage Swing
Capacitive Load Drive
Power Supply Rejection
POWER SUPPLY
Operating Voltage Range
Quiescent Supply Current
TEMPERATURE RANGE
Operating Range J
Specified Performance A
Automotive Grade*
NOTES
1
2
(T
A
= T
MIN
to T
MAX
, T
A
= +25 C for J Grade Only, V
S
= +5 V, @ Acceleration = 0
g,
unless otherwise noted)
Min
–5
0.2
±
1
±
2
175
0.875
200
1.000
±
0.5
1.80
±
25/40
10
500
5
1.6
1000
1600
4
12
–1.00
–1.15
0.8
225
1.125
ADXL05J/A
Typ
Max
+5
Units
g
% of FS
Degrees
%
mV/g
V/g
% of Reading
V
mV
mV/V
µg/√Hz
mg rms
mg rms
Hz
kHz
kHz
V
V
V
kΩ
V
mV
mV/V
µA
V
µA
pF
mV
nA
dB
kHz
V
pF
mV/V
V
mA
°C
°C
°C
Conditions
Guaranteed Full Scale
Best Fit Straight Line, 5
g
FS
+25°C
+25°C, R3/R1 = 5
at V
PR
1.50
V
S
= 4.75 V to 5.25 V
at V
PR
BW = 4 Hz to 1 kHz
2.10
32
1000
C1 = 0.022
µF
(See Figure 9)
C1 = 0.010
µF
ST Pin from Logic “0” to “1”
–0.85
2.0
To Common
3.350
DC, V
S
= +4.75 V to +5.25 V
Sourcing
50
3.400
±
5
1
3.450
10
500
0.25
30
V
S
– 1.4
80
100
±
10
5
80
200
0.25
1000
1
4.75
8.0
0
–40
–40
±
25
20
Source or Sink
Delta from Nominal 1.800 V
DC
I
OUT
=
±
100
µA
DC, V
S
= +4.75 V to +5.25 V
V
S
– 0.25
10
5.25
10.0
+70
+85
+125
Alignment error is specified as the angle between the true and indicated axis of sensitivity, (see Figure 2).
Transverse 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 V
PR
output. This is the algebraic sum of the alignment and the inherent sensor sensitivity errors, (see Figure 2).
3
Specification refers to the maximum change in parameter from its initial at +25°C to its worst case value at T
MIN
to T
MAX
.
4
Frequency 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.
5
Applying logic high to the self-test input has the effect of applying an acceleration of –5
g
to the ADXL05.
6
Input 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.
–2–
REV. B
System Performance Specifications–ADXL05
C2
4
0.022µF
C1
0.022µF
3
2
ADXL05
1.8V
PRE-AMP
BUFFER
AMP
1
+5V
C3
0.1µF
C1
COM
5
6
8
10
9
V
OUT
+3.4V
REF
V
PR
C4
R1
V
IN–
R2
R3
NOMINAL VALUES:
R1 = 49.9kΩ
R3 = 249kΩ
R2 = 640kΩ
AC COUPLED CONNECTION ( 1.5
g
Full Scale)
(@ V
OUT
Terminal (Pin 9), unless otherwise noted. 0
g
Bias Level = +2.5 V, C1 = 0.022 F, R2 = 2.57 R3
ADXL05J/A
Parameter
Buffer Gain
FULL-SCALE RANGE
SENSITIVITY
Temperature Drift
ZERO
g
BIAS LEVEL
Temperature Drift
FREQUENCY RESPONSE
Conditions
G = R3/R1*
@ +25°C
T
MIN
to T
MAX
@ +25°C
+25°C to T
MIN
or T
MAX
C4 = 3.3
µF,
R1 = 49.9 kΩ
1
–1.5
875
Min
Typ
5
1000
±
0.5
2.5
2/5
1000
+1.5
1,125
g
mV/g
% of Reading
V
mV
Hz
Max
Units
*Note: Resistor tolerance will affect system accuracy. Use of
±
1% (or better) metal film resistors is recommended.
C2
4
0.022µF
C1
0.022µF
3
2
ADXL05
1.8V
PRE-AMP
BUFFER
AMP
1
+5V
C3
0.1µF
C1
COM
5
6
8
10
9
V
OUT
+3.4V
REF
V
PR
R1
V
IN–
R2
R3
NOMINAL VALUES:
R1 = 49.9kΩ
R3 = 100kΩ (G=2)
R2 = 255kΩ (G=2)
DC COUPLED CONNECTION ( 2
g
Full Scale)
(@ V
OUT
Terminal (Pin 9), unless otherwise noted. 0
g
Bias Level = +2.5 V, C1 = 0.022 F, R2 = 2.57 R3)
ADXL05J/A
Typ
2
–2
350
1.75
dc
400
±
0.5
2.5
±
50/80
+2
450
3.2
1000
g
mV/g
% of Reading
V
mV
Hz
Parameter
Buffer Gain
FULL-SCALE RANGE
SENSITIVITY
Temperature Drift
ZERO
g
BIAS LEVEL
Temperature Drift
FREQUENCY RESPONSE
Conditions
G = R3/R1*
@ +25°C
T
MIN
to T
MAX
@ +25°C
+25°C to T
MIN
or T
MAX
Min
Max
Units
*Note: Resistor tolerance will affect system accuracy. Use of
±
1% (or better) metal film resistors is recommended.
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