Data Sheet

ADXL314

SPECIFICATIONS

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Rev. A | 3 of 27

TA = 25°C, VS = 2.5 V, VDD I/O = 2.5 V, acceleration = 0 g, VS capacitance (CVS) = 1 μF tantalum, VDD I/O capacitance (CVDDI/O) = 0.1 μF, and

ODR = 100 Hz, unless otherwise noted.

Table 1. Specifications

Parameter

Test Conditions/Comments

Min1

Typ2

Max1

Unit

SENSOR INPUT

Each axis

Measurement Range

±200

g

Nonlinearity

Percentage of full scale

±0.5

%

Cross-Axis Sensitivity3

±2.5

%

Sensor Resonant Frequency

16

kHz

OUTPUT RESOLUTION

Each axis

All Operation Modes

13

Bits

SENSITIVITY

All axes

Sensitivity

ODR = 100 Hz

20.48

LSB/g

Scale Factor

ODR = 100 Hz

48.83

mg/LSB

Scale Factor Calibration Error

±10

%

Sensitivity Change due to Temperature

−40°C ≥ TA ≤ +25°C or +25°C ≥ TA ≤ +125°C

8

%

0 g OFFSET

0 g Output

X-axis and Y-axis

−7

±1

+7

g

Z-axis

−7

±3

+7

g

0 g Offset Change due to Temperature

−40°C to +105°C

±20

mg/°C

105°C to +125°C

±100

mg/°C

NOISE PERFORMANCE (RMS)

Noise Density

X-Axis and Y-Axis

5.65

mg/√Hz

Z-Axis

6.8

mg/√Hz

Noise Density Change with Temperature (All Axes)

0.5

mg/√Hz/°C

OUTPUT DATA RATE AND BANDWIDTH4, 5

User-selectable

Measurement Rate

6.25

3200

Hz

SELF TEST6

Z-axis only

Self Test Change

At 100 Hz ODR, −40°C ≥ TA ≤ +125°C

0.1

4

8

g

Self Test Change vs. Temperature

−12.5

mg/°C

POWER SUPPLY

Operating Voltage Range (VS)

2.0

3.6

V

Interface Voltage Range (VDD I/O)

2.0

VS

V

Supply Current

Measurement Mode

ODR ≥ 100 Hz, −40°C to +125°C

70

170

µA

ODR ≤ 10 Hz, −40°C to +125°C

20

50

µA

Low Power Mode

ODR = 100 Hz, −40°C to +125°C

22

65

µA

Standby Mode

25°C

0.1

µA

−40°C to 125°C

17

µA

Turn-On and Wake-up Time7

1.4

ms