Accelerometers

Accelerometers
INSTRUMENTATION, TA SERIES
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Amplified Output
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DC Response, Wide Bandwidth
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Piezoresistive Micro-machined
Silicon Sensor
Applications
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Automotive Testing
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Industrial Vibration Monitoring
TA Series
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accelerometers
The TA Series Instrumentation
Accelerometers are designed specifically for automotive test applications
and industrial vibration monitoring.
The DC to 1000 Hz bandwidth and
low noise of these sensors are ideal
for many test and measurement
applications. The TA Series features
a buffered, single-ended output
voltage that is measured differentially
with respect to a 2.5 V reference.
The sensors require a +5 VDC supply
voltage.
The sensing element of the TA Series
consists of a micro-machined silicon
mass suspended by multiple
beams from a silicon frame. Each
hermetically sealed element is signal
conditioned, precisely aligned in a
mounting block, and potted with an
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industrial strength cable. Every unit is
thoroughly tested by Crossbow
before it leaves the factory.
Each sensor is shipped with a
calibration sheet stating the zero
acceleration output and sensitivity.
Additional calibration information,
such as a frequency sweep, or
temperature drift can also be included.
The module may be securely
attached using screws or an
adhesive. The output requires no
signal conditioning and is easy to
interface to standard data acquisition
systems.
Please visit our website
(www.xbow.com) or contact us
directly for additional application
information on this product.
Min
Typical
Max
± 25
± 50
80 ± 4
40 ± 2
± 0.2
±1
2.5
2.5
±1
±4
2.6
2.6
V cc
20
10
1000
Self-Test
Vref 2.5V
ACCEL
+ 85
Vout
±2
±2
2000
5.0
10
1.0
0.5
GND
5.5
Block Diagram
accelerometers
Specifications
Performance
Input Range (g)
CXL25TA1Z
CXL50TA1Z
Sensitivity (mV/g)
CXL25TA1Z
CXL50TA1Z
Non-Linearity (% Span)
Transverse Sensitivity (% Span)
Zero Acceleration Output (VDC)
2.4
Reference Output Voltage (VDC)
2.4
Noise (mV rms)
CXL25TA1Z
CXL50TA1Z
Bandwidth (Hz)
Environment
Operating Temperature Range (°C)
- 40
Temp. Coefficient – Span (% Span)
Temp. Coefficient – Zero (% Span)
Shock/Acceleration Limit (g)
Electrical
Supply Voltage (VDC)
4.5
Supply Current (mA)
Output Current Source (mA)
Output Current Sinking (mA)
Physical
Size
0.563” x 1.00” x 1.00 (1.43 cm
Weight
1.52 oz (43 gm)
x 2.54 cm x 2.54 cm)
Notes
All values are specified at an operational voltage of 5.0 VDC and temperature of 25°C unless noted
otherwise. Sensitivity is ratiometric to supply in the range of 5 V ± 0.5 V. Non-linearity is the deviation
from a best fit straight line at full scale. Transverse sensitivity is error measured in the primary axis
output created by forces induced in the orthogonal axis. Transverse sensitivity error is primarily due to
the effects of misalignment. Zero g drift is specified as the typical change in 0 g level from its initial
value at +25°C to its worst case value at Tmin or Tmax. Self Test: To enable self-test, ground self-test pin.
Specifications subject to change without notice
Color
Function
Red
Black
White
Green
Blue
+ 5V Supply
Ground
+ 2.5 Ref. Output
Signal Output
Self Test Input
Pin Diagram
Ordering Information
Model
CXL25TA1Z
CXL50TA1Z
Description
Z-axis Instrumentation Accelerometer
Z-axis Instrumentation Accelerometer
Span (g) Sensitivity Noise
(mV/g) (mV rms)
± 25
± 50
80 ± 4
40 ± 2
20
10
Bandwidth
(Hz)
DC-1000
DC-1000
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