EVAL-ADXL345Z-DB Analog Devices Inc, EVAL-ADXL345Z-DB Datasheet - Page 36

• Manufacturer Part Number: EVAL-ADXL345Z-DB
• Description: BOARD EVAL FOR ADXL345
• Manufacturer: Analog Devices Inc
• Series: iMEMS®r

Specifications of EVAL-ADXL345Z-DB

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2g, 4g, 8g, 16g
• Interface: I²C, SPI
• Sensitivity: 256LSB/g, 128LSB/g, 64LSB/g, 32LSB/g
• Voltage - Supply: 2 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: ADXL345
• Silicon Manufacturer: Analog Devices
• Application Sub Type: Accelerometer - Three-Axis
• Kit Application Type: Sensing - Motion / Vibration / Shock
• Silicon Core Number: ADXL345
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADXL345
LAYOUT AND DESIGN RECOMMENDATIONS
Figure 58 shows the recommended printed wiring board land pattern. Figure 59 and Table 24 provide details about the recommended
soldering profile.
Table 24. Recommended Soldering Profile
Profile Feature
Average Ramp Rate from Liquid Temperature (T
Preheat
T
Liquid Temperature (T
Time Maintained Above T
Peak Temperature (T
Time of Actual T
Ramp-Down Rate
Time 25°C to Peak Temperature
1
2
Based on JEDEC Standard J-STD-020D.1.
For best results, the soldering profile should be in accordance with the recommendations of the manufacturer of the solder paste used.
SMAX
Minimum Temperature (T
Maximum Temperature (T
Time from T
to T
L
Ramp-Up Rate
SMIN
P
− 5°C (t
to T
P
)
SMAX
L
)
L
P
(t
)
(t
L
S
)
SMIN
)
SMAX
Figure 58. Recommended Printed Wiring Board Land Pattern (Dimensions shown in millimeters)
)
)
T
T
P
L
T
SMIN
1, 2
T
5.3400
SMAX
L
) to Peak Temperature (T
3.0500
Figure 59. Recommended Soldering Profile
PREHEAT
t
25°C TO PEAK
t
S
Rev. B | Page 36 of 40
0.2500
RAMP-UP
3.3400
1.0500
TIME
P
)
RAMP-DOWN
1.1450
t
P
t
L
0.5500
0.2500
CRITICAL ZONE
Sn63/Pb37
3°C/sec maximum
100°C
150°C
60 sec to 120 sec
183°C
60 sec to 150 sec
240 + 0/−5°C
10 sec to 30 sec
3°C/sec maximum
6°C/sec maximum
6 minutes maximum
T
L
TO T
P
Condition
Pb-Free
3°C/sec maximum
150°C
200°C
60 sec to 180 sec
3°C/sec maximum
217°C
60 sec to 150 sec
260 + 0/−5°C
20 sec to 40 sec
6°C/sec maximum
8 minutes maximum