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Programmable High-g Digital
Impact Sensor and Recorder
ADIS16204
Rev. B
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FEATURES
Dual-axis sensing, ±70 g, ±37 g
14-bit resolution
Impact peak-level sample-and-hold
RSS output
Programmable event recorder
400 Hz double-pole Bessel sensor response
Digitally controlled sensitivity and bias
Digitally controlled sample rate, up to 4096 SPS
Programmable condition monitoring alarms
Auxiliary digital I/O
Digitally activated self-test
Embedded temperature sensor
Programmable power management
SPI-compatible serial interface
Auxiliary 12-bit ADC input and DAC output
Single-supply operation: +3.0 V to +3.6 V
4000 g powered shock survivability
APPLICATIONS
Crash or impact detection
Condition monitoring of valuable goods
Safety, shut-off sensing
Impact event recording
Security sensing, tamper detection
FUNCTIONAL BLOCK DIAGRAM
SCLK
DIN
DOUT
CS
RST DIO1 DIO2
SPI
PORT
TEMPERATURE
SENSOR
SELF-TEST
POWER
MANAGEMENT
AUXILIARY
I/O
EVENT
CAPTURE
BUFFER
MEMORY
ALARMS
DIGITAL
CONTROL
SIGNAL
CONDITIONING
AND
CONVERSION
DIGITAL
PROCESSING
ADIS16204
VDD
COM
A
UX
ADC
AUX
DAC
VREF
INERTIAL
MEMS
SENSOR
06448-001
Figure 1.
GENERAL DESCRIPTION
The ADIS16204 is a fully-contained programmable impact
sensor in a single compact package enabled by the Analog
Devices, Inc. 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 provides access to
measurements for dual-axis linear acceleration, a root sum
square (RSS) of both axes, temperature, power supply, an
auxiliary analog input, and an event capture buffer memory. Easy
access to digital sensor data provides users 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 bias null/offset calibration, along with convenient
sample rate control.
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 (dual, 1K × 16 bit)
RSS output (total shock in the XY plane)
Configurable alarms
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 tem-
perature range of −40°C to +105°C.
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