ADXL001_10 Datasheet, PDF (1/16 Pages) Analog Devices – High Performance, Wide Bandwidth Accelerometer

High Performance,
Wide Bandwidth Accelerometer
ADXL001
FEATURES
High performance accelerometer
±70 g, ±250 g, and ±500 g wideband ranges available
22 kHz resonant frequency structure
High linearity: 0.2% of full scale
Low noise: 4 mg/√Hz
Sensitive axis in the plane of the chip
Frequency response down to dc
Full differential signal processing
High resistance to EMI/RFI
Complete electromechanical self-test
Output ratiometric to supply
Velocity preservation during acceleration input overload
Low power consumption: 2.5 mA typical
8-terminal, hermetic ceramic, LCC package
APPLICATIONS
Using the Analog Devices, Inc. proprietary fifth-generation
iMEMs® process enables the ADXL001 to provide the desired
dynamic range that extends from ±70 g to ±500 g in combin-
ation with 22 kHz of bandwidth. The accelerometer output
channel passes through a wide bandwidth differential-to-single-
ended converter, which allows access to the full mechanical
performance of the sensor.
The part can operate on voltage supplies from 3.3 V to 5 V.
The ADXL001 also has a self-test (ST) pin that can be asserted to
verify the full electromechanical signal chain for the accelerometer
channel.
The ADXL001 is available in the industry-standard 8-terminal
LCC and is rated to work over the extended industrial temperature
range (−40°C to +125°C).
15
12
Vibration monitoring
9
Shock detection
6
Sports diagnostic equipment
3
Medical instrumentation
Industrial monitoring
0
–3
GENERAL DESCRIPTION
–6
The ADXL001 is a major advance over previous generations of
–9
accelerometers providing high performance and wide bandwidth.
This part is ideal for industrial, medical, and military applications
where wide bandwidth, small size, low power, and robust
performance are essential.
–12
–15
1
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 1. Sensor Frequency Response
FUNCTIONAL BLOCK DIAGRAM
V_S
V_DD
V_DD2
TIMING
GENERATOR
ADXL001
MOD
DIFFERENTIAL
SENSOR
DEMOD
AMP
OUTPUT
AMPLIFIER
X_OUT
SELF-TEST
ST
COM
Figure 2.
Rev. A
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