ADXL105_15 Datasheet, PDF (1/8 Pages) Analog Devices – High Accuracy 1 g to 5 g Single Axis iMEMS Accelerometer with Analog Input

a High Accuracy ؎1 g to ؎5 g Single Axis
iMEMS^® Accelerometer with Analog Input
ADXL105*
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Monolithic IC Chip
2 mg Resolution
V_DD
10 kHz Bandwidth
Flat Amplitude Response (؎1%) to 5 kHz
ADXL105
Low Bias and Sensitivity Drift
T_OUT
TEMP
SENSOR
Low Power 2 mA
UNCOMMITTED
AMPLIFIER
Output Ratiometric to Supply
User Scalable g Range
On-Board Temperature Sensor
Uncommitted Amplifier
Surface Mount Package
+2.7 V to +5.25 V Single Supply Operation
E _{1000 g Shock Survival}
APPLICATIONS
Automotive
T _{Accurate Tilt Sensing with Fast Response}
Machine Health and Vibration Measurement
Affordable Inertial Sensing of Velocity and Position
Seismic Sensing
E _{Rotational Acceleration}
ST
X SENSOR
COM
COM A_OUT V_MID V_NIN V_IN
UCA_OUT
L ^{GENERAL DESCRIPTION}
The ADXL105 is a high performance, high accuracy and com-
plete single-axis acceleration measurement system on a single
monolithic IC. The ADXL105 offers significantly increased
bandwidth and reduced noise versus previously available micro-
O _{machined devices. The ADXL105 measures acceleration with a}
full-scale range up to ± 5 g and produces an analog voltage out-
put. Typical noise floor is 225 µg√Hz allowing signals below
2 mg to be resolved. A 10 kHz wide frequency response enables
S _{vibration measurement applications. The product exhibits signifi-}
cant reduction in offset and sensitivity drift over temperature
OB ^{compared to the ADXL05.}
The ADXL105 can measure both dynamic accelerations, (typi-
cal of vibration) or static accelerations (such as inertial force,
gravity or tilt).
Output scale factors from 250 mV/g to 1.5 V/g are set using the
on-board uncommitted amplifier and external resistors. The
device features an on-board temperature sensor with an output
of 8 mV/°C for optional temperature compensation of offset vs.
temperature for high accuracy application.
The ADXL105 is available in a hermetic 14-lead surface mount
Cerpak with versions specified for the 0°C to +70°C, and
–40°C to +85°C temperature ranges.
*Patent Pending.
iMEMS is a registered trademark of Analog Devices, Inc.
REV. A
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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
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© Analog Devices, Inc., 1999