EVAL-ADXL343Z-M Analog Devices, EVAL-ADXL343Z-M Datasheet - Page 32

• Manufacturer Part Number: EVAL-ADXL343Z-M
• Description: Acceleration Sensor Development Tools EB
• Manufacturer: Analog Devices

Specifications of EVAL-ADXL343Z-M

• Rohs: yes
• Tool Is For Evaluation Of: ADXL343
• Acceleration: 2 g, 4 g, 8 g, 16 g
• Sensing Axis: Triple Axis
• Interface Type: I2C, SPI
• Operating Voltage: 2 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Current: 140 uA
• Output Type: Digital
• Product: Evaluation Systems
• Sensitivity: 256 LSB/g, 128 LSB/g, 64 LSB/g, 32 LSG/g
• Factory Pack Quantity: 1

ADXL343
Changes in noise performance, self-test response, and supply
current are discussed elsewhere throughout the data sheet. For
noise performance, the Noise Performance section should be
reviewed. The Using Self-Test section discusses both the
operation of self-test over voltage, a square relationship with
supply voltage, as well as the conversion of the self-test response
in g’s to LSBs. Finally, Figure 23 shows the impact of supply
voltage on typical current consumption at a 100 Hz output data
rate, with all other output data rates following the same trend.
OFFSET PERFORMANCE AT LOWEST DATA RATES
The
bandwidths, designed for a large range of applications. However,
at the lowest data rates, described as those data rates below 6.25 Hz,
the offset performance over temperature can vary significantly
from the remaining data rates. Figure 44, Figure 45, and Figure 46
show the typical offset performance of the
temperature for the data rates of 6.25 Hz and lower. All plots
are normalized to the offset at 100 Hz output data rate; therefore,
a nonzero value corresponds to additional offset shift due to
temperature for that data rate.
When using the lowest data rates, it is recommended that the
operating temperature range of the device be limited to provide
minimal offset shift across the operating temperature range.
Due to variability between parts, it is also recommended that
calibration over temperature be performed if any data rates
below 6.25 Hz are in use.
Figure 44. Typical X-Axis Output vs. Temperature at Lower Data Rates,
ADXL343
140
120
100
80
60
40
20
0
Normalized to 100 Hz Output Data Rate, V
25
offers a large number of output data rates and
0.10Hz
0.20Hz
0.39Hz
0.78Hz
1.56Hz
3.13Hz
6.25Hz
35
45
TEMPERATURE (°C)
55
65
ADXL343
75
S
= 2.5 V
85
over
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Figure 45. Typical Y-Axis Output vs. Temperature at Lower Data Rates,
Figure 46. Typical Z-Axis Output vs. Temperature at Lower Data Rates,
140
120
100
140
120
100
–20
80
60
40
20
80
60
40
20
0
0
Normalized to 100 Hz Output Data Rate, V
Normalized to 100 Hz Output Data Rate, V
25
25
0.10Hz
0.20Hz
0.39Hz
0.78Hz
1.56Hz
3.13Hz
6.25Hz
0.10Hz
0.20Hz
0.39Hz
0.78Hz
1.56Hz
3.13Hz
6.25Hz
35
35
45
45
TEMPERATURE (°C)
TEMPERATURE (°C)
55
55
65
65
75
S
75
S
Data Sheet
= 2.5 V
= 2.5 V
85
85