ADIS16204 Datasheet, PDF (1/9 Pages) Analog Devices – Programmable Dual Axis Digital Accelerometer and Impact Sensor

Preliminary Technical Data
Programmable Dual Axis Digital
Accelerometer and Impact Sensor
ADIS16204
FEATURES
Dual-axis impact sensing
Dual-axis acceleration sensing, +70g, +35g
14-bit resolution
17.1 mg/LSB, 8.55mg/LSB sensitivity
Impact peak-level sample and hold
Programmable Event Recorder
400Hz double-pole Bessel sensor response
12-bit digital temperature sensor output
Digitally controlled sensitivity and bias
Digitally controlled sample rate, up to 4096 SPS
Dual alarm settings with programmable threshold limits
Auxiliary digital I/O
Digitally activated self test
Digitally activated low power mode
SPI®-compatible serial interface
Auxiliary 12-bit ADC input and DAC output
Single-supply operation: 3.0 V to +3.6 V
3500 g powered shock survivability
APPLICATIONS
Impact detection
Condition monitoring
Safety Systems
Shock sensor
GENERAL DESCRIPTION
The ADIS16204 is a programmable impact sensor in a single
compact package enabled by the Analog Devices iSensor™
integration. By enhancing the Analog Devices iMEMS® sensor
technology with an embedded signal processing solution, the
ADIS16204 provides tunable digital sensor data in a convenient
format that can be accessed using a serial peripheral interface
(SPI). The SPI interface provides access to measurements for
dual-axis linear acceleration, a root-sum-square (RSS) of both
axes, temperature, power supply, and one auxiliary analog
input. Easy access to digital sensor data provides developers
with a system-ready device, reducing development time, cost,
and program risk.
Unique characteristics of the end system are accommodated
easily through several built-in features, such as a single
command in-system offset calibration, along with convenient
sample rate control.
Rev. PrA
10/10/2006 4:24 AM
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FUNCTIONAL BLOCK DIAGRAM
AUX AUX
ADC DAC VREF
Temperature
Sensor
Inertial
MEMS
Sensor
Self-Test
Signal
Conditioning
Digital
&
Processing
Conversion
SPI
Port
Digital
Control
VDD
COM
Power
Management
Alarms
Aux
I/O
RST
DIO0 DIO1
Figure 1.
CS
SCLK
DIN
DOUT
The ADIS16204 offers the following embedded features, which
eliminate the need for external circuitry and provide a simplified
system interface:
• Peak sample and hold
• Programmable Event Recording
• Configurable trigger levels
• Auxiliary 12-bit ADC and DAC
• Configurable digital I/O port
• Digital self-test function
The ADIS16204 offers two power management features for
managing system-level power dissipation: low power mode and
a configurable shutdown feature.
The ADIS16204 is available in a 9.2 mm × 9.2 mm × 3.9 mm
laminate-based land grid array (LGA) package with a
temperature range of −40°C to +105°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]
www.analog.com
Fax: [phone]
©2006 Analog Devices, Inc. All rights reserved.