SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Silicon Designs, Inc.
! 1445 NW Mall Street, Issaquah, WA 98027-5344 ! Phone: 425-391-8329 ! Fax: 425-391-0446
web site: www.silicondesigns.com
[page 2]
Sep 07
Model 2420 Triaxial Digital Accelerometer Module
ABSOLUTE MAXIMUM RATINGS *
Operating Temperature (Case & Cable) . . . -55 to +125
EC
Operating Temperature (Connector) . . . . . -55 to +105
EC
Storage Temperature . . . . . . . . . . . . . . . . . -55 to +105
EC
Acceleration Over-range . . . . . . . . . . . . . 2000g for 0.1 ms
Voltage on V
DD to GND . . . . . . . . . . . . . . . . . -0.5V to 6.5V
Voltage on Any Pin to GND
1 . . . . . . . . -0.5V to V
DD+0.5V
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW
* NOTICE: Stresses above those listed under "Absolute
Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only. Functional operation
of the device at or above these conditions is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
ESD CONSIDERATIONS:
The model 2420 triaxial
accelerometer is a CMOS device subject to damage by
large electrostatic discharges.
Diode protection is
provided on the inputs and outputs but care should be
exercised during handling of the connector or cable wire
ends (without connector). Individuals and tools should be
grounded before coming in contact with the connector
pins or cable wire ends (without connector).
PERFORMANCE
- By Model: V
DD=5.0VDC, TC=25
EC.
MODEL NUMBER
2420-002
2420-005
2420-010
2420-025
2420-050
2420-100
2420-200
Units
Input Range
±2
±5
±10
±25
±50
±100
±200
g
Frequency Response (Nominal, 3 dB)
0 - 400
0 - 600
0 - 1000 0 - 1400 0 - 1600 0 - 1800 0 - 2000
Hz
Sensitivity (F
CLK=250kHz)
62.5
25.0
12.5
5.00
2.50
1.25
0.625
kHz/g
Maximum Mechanical Shock (0.1 ms)
2000
g
PERFORMANCE
- All Models: Unless otherwise specified, V
DD=5.0VDC, FCLK=250kHz, TC=25
EC.
PARAMETER
Min
Typ
Max
Units
Cross Axis Sensitivity
2
3
%
Bias Calibration Error
2
-002
2
4
% of F
CLK (span)
-005 thru -200
1
2
Bias Temperature Shift
(T
C=-55 to +125EC)
2
-002
150
400
(ppm of
F
CLK)/EC
-005 thru -200
100
300
Scale Factor Calibration Error
2, 3
1
2
%
Scale Factor Temperature Shift (T
C=-55 to +125EC)
2
+300
ppm/
EC
Non-Linearity
(-90% to +90% of Full Scale)
3
-002 thru -100
0.5
1.0
% of span
-200
0.7
1.5
Power Supply Rejection Ratio
40
dB
Operating Voltage
4.5
5.0
5.5
V
Operating Current
2
6.0
9.0
mA
Clock Input Voltage Range (with respect to GND)
-0.5
V
DD+0.5
V
Mass (not including cable)
21
grams
Cable Mass
15
grams/meter
Note 1: Voltages on the CLK & CNT signal wires may exceed 0.5 volt above or below the supply voltage provided the current is limited to 1 mA.
Note 2: Tighter tolerances available on special order.
Note 3: 100g and greater versions are tested from -65g to +65g.
ALTERNATE OUTPUT VERSION AVAILABLE: A custom version may be ordered which provides the DIR (direction) output
instead of the CNT (count) output. For a description of the DIR signal, see the model 1010 data sheet.