EVAL-ADXL344Z Analog Devices, EVAL-ADXL344Z Datasheet - Page 34

• Manufacturer Part Number: EVAL-ADXL344Z
• Description: Daughter Cards & OEM Boards EB
• Manufacturer: Analog Devices
• Series: ADXL344r

Specifications of EVAL-ADXL344Z

• Rohs: yes
• Product: Breakout Boards
• Description/function: 3 axis accelerometer evaluation board
• Interface Type: I2C, SPI
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 1.7 V to 2.75 V
• Factory Pack Quantity: 1
• For Use With: ADXL344

ADXL344
Changes in noise performance, self-test response, and supply
current are discussed elsewhere throughout the data sheet. For
more information about noise performance, review the Noise
Performance section. The Self-Test section discusses both the
operation of self-test over voltage (a square relationship with the
supply voltage) and the conversion of the self-test response in
g’s to LSBs. Finally, Figure 21 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
designed for a wide 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 45, Figure 46, and Figure 47 show
the typical offset performance of the
for 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 the 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.
ADXL344
offers several output data rates and bandwidths
ADXL344
over temperature
Rev. 0 | Page 34 of 40
Figure 45. Typical X-Axis Output vs. Temperature at Lower Data Rates,
Figure 46. Typical Y-Axis Output vs. Temperature at Lower Data Rates,
Figure 47. Typical Z-Axis Output vs. Temperature at Lower Data Rates,
140
120
100
140
120
100
140
120
100
–20
80
60
40
20
80
60
40
20
80
60
40
20
0
0
0
Normalized to 100 Hz Output Data Rate, V
Normalized to 100 Hz Output Data Rate, V
Normalized to 100 Hz Output Data Rate, V
25
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
0.10Hz
0.20Hz
0.39Hz
0.78Hz
1.56Hz
3.13Hz
6.25Hz
35
35
35
45
45
45
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
55
55
55
65
65
65
75
S
75
S
75
S
Data Sheet
= 2.6 V
= 2.6 V
= 2.6 V
85
85
85