ADXL320JCP-REEL7 Fast Delivery |IC PHOENIX CO.,LIMITED

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ADXL320JCP-REEL7
Small and Thin 5 g Accelerometer
Small and Thin ±5 g AccelerometerRev. 0
FEATURES
Small and thin
4 mm × 4 mm × 1.45 mm LFCSP package
2 mg resolution at 60 Hz
Wide supply voltage range: 2.4 V to 5.25 V
Low power: 350 µA at VS = 2.4 V (typ)
Good zero g bias stability
Good sensitivity accuracy
X-axis and Y-axis aligned to within 0.1° (typ)
BW adjustment with a single capacitor
Single-supply operation
10,000 g shock survival
Compatible with Sn/Pb and Pb-free solder processes
APPLICATIONS
Cost-sensitive motion- and tilt-sensing applications
Smart hand-held devices
Mobile phones
Sports and health-related devices
PC security and PC peripherals
GENERAL DESCRIPTION
The ADXL320 is a low cost, low power, complete dual-axis
accelerometer with signal conditioned voltage outputs, which is
all on a single monolithic IC. The product measures
acceleration with a full-scale range of ±5 g (typical). It can also
measure both dynamic acceleration (vibration) and static
acceleration (gravity).
The ADXL320’s typical noise floor is 250 µg/√Hz, allowing
signals below 2 mg to be resolved in tilt-sensing applications
using narrow bandwidths (<60 Hz).
The user selects the bandwidth of the accelerometer using
capacitors CX and CY at the XOUT and YOUT pins. Bandwidths of
0.5 Hz to 2.5 kHz may be selected to suit the application.
The ADXL320 is available in a very thin 4 mm × 4 mm ×
1.45 mm, 16-lead, plastic LFCSP.
FUNCTIONAL BLOCK DIAGRAM
+3V
CDC
Figure 1.
TABLE OF CONTENTS
Specifications.....................................................................................3
Absolute Maximum Ratings............................................................4
ESD Caution..................................................................................4
Pin Configuration and Function Descriptions.............................5
Typical Performance Characteristics (VS = 3.0 V).......................7
Theory of Operation......................................................................11
Performance................................................................................11
Applications.....................................................................................12
Power Supply Decoupling.........................................................12
Setting the Bandwidth Using CX and CY.................................12
Self-Test.......................................................................................12
Design Trade-Offs for Selecting Filter Characteristics: The
Noise/BW Trade-Off..................................................................12
Use with Operating Voltages Other than 3 V.............................13
Use as a Dual-Axis Tilt Sensor.................................................13
Outline Dimensions.......................................................................14
Ordering Guide..........................................................................14
REVISION HISTORY
9/04—Revision 0: Initial Version
SPECIFICATIONS1
TA = 25°C, VS = 3 V, CX = CY = 0.1 µF, Acceleration = 0 g, unless otherwise noted.
Table 1.
All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed.
2 Sensitivity is essentially ratiometric to VS. For VS = 2.7 V to 3.3 V, sensitivity is 154 mV/V/g to 194 mV/V/g typical. Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature.
4 Actual frequency response controlled by user-supplied external capacitor (CX, CY). Bandwidth = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.002 µF, bandwidth = 2500 Hz. For CX, CY = 10 µF, bandwidth = 0.5 Hz. Minimum/maximum values are not tested.
6 Self-test response changes cubically with VS. Larger values of CX, CY increase turn-on time. Turn-on time is approximately 160 × CX or CY + 4 ms, where CX, CY are in µF.
ABSOLUTE MAXIMUM RATINGS
Table 2.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate
on the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS XOUTNC
COMYOUTNC
COMCOMCOMNCVSVSNC
04993-022
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
t25°C TO PEAK
RATURE
TIME
Figure 3. Recommended Soldering Profile
Table 4. Recommended Soldering Profile
TYPICAL PERFORMANCE CHARACTERISTICS (VS = 3.0 V)
1.401.421.441.461.481.501.521.541.561.581.60
OUTPUT (V)
% OF POPU
TION
Figure 4. X-Axis Zero g Bias Deviation from Ideal at 25°C
–2.8–2.4–2.0–1.6–1.2–0.8–0.400.40.81.21.62.02.42.8
TEMPERATURE COEFFICIENT (mg/°C)
% OF POPU
TION
Figure 5. X-Axis Zero g Bias Temperature Coefficient
164184182180178176174172170168166
SENSITIVITY (mV/g)
% OF POPU
TION
Figure 6. X-Axis Sensitivity at 25°C
1.401.421.441.461.481.501.521.541.561.581.60
OUTPUT (V)
% OF POPU
TION
Figure 7. Y-Axis Zero g Bias Deviation from Ideal at 25°C
–2.8–2.4–2.0–1.6–1.2–0.8–0.400.40.81.21.62.02.42.8
TEMPERATURE COEFFICIENT (mg/°C)
% OF POPU
TION
Figure 8. Y-Axis Zero g Bias Temperature Coefficient
164184182180178176174172170168166
SENSITIVITY (mV/g)
% OF POPU
TION
Figure 9. Y-Axis Sensitivity at 25°C
1.46–30–20–1001020304050607080
TEMPERATURE (°C)
TPU
E =
174mV/
Figure 10. Zero g Bias vs. Temperature—Parts Soldered to PCB 170190210230250270290310330350
NOISE ug/ Hz
% OF POPU
TION
Figure 11. X-Axis Noise Density at 25°C –5–4–3–2–1012345
PERCENT SENSITIVITY (%)
% OF POPU
TION
Figure 12. Z vs. X Cross-Axis Sensitivity
–30–20–1001020304050607080
TEMPERATURE (°C)
SEN
SITIVITY (
Figure 13. Sensitivity vs. Temperature—Parts Soldered to PCB 170190210230250270290310330350
NOISE ug/ Hz
% OF POPU
TION
Figure 14. Y-Axis Noise Density at 25°C –5–4–3–2–1012345
PERCENT SENSITIVITY (%)
% OF POPU
TION
Figure 15. Z vs. Y Cross-Axis Sensitivity

Partno	Mfg	Dc	Qty	Available	Descript
ADXL320JCP-REEL7 \|ADXL320JCPREEL7	AD ?	N/a	500	avai	Small and Thin 5 g Accelerometer