ADXL312 Просмотр технического описания (PDF) - Analog Devices

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ADXL312

3-Axis, ±1.5 g/±3 g/±6 g/±12 g Digital Accelerometer

Analog Devices 

SPECIFICATIONS

TA = −40°C to +105°C, VS = VDD I/O = 3.3 V, acceleration = 0 g, unless otherwise noted.

Table 1. Specifications1

Parameter

SENSOR INPUT

Measurement Range

Nonlinearity

Inter-Axis Alignment Error

Cross-Axis Sensitivity2

OUTPUT RESOLUTION

All g Ranges

±1.5 g Range

±3 g Range

±6 g Range

±12 g Range

SENSITIVITY

Scale Factor at XOUT, YOUT, ZOUT

Scale Factor at XOUT, YOUT, ZOUT

Scale Factor at XOUT, YOUT, ZOUT

Scale Factor at XOUT, YOUT, ZOUT

Conditions

Min

Each axis

User selectable

Percentage of full scale

Each axis

Default resolution

Full resolution enabled

Full resolution enabled

Full resolution enabled

Full resolution enabled

Each axis

±1.5 g, 10-bit or full resolution

2.6

±3 g, 10-bit resolution

5.2

±6 g, 10-bit resolution

10.4

±12 g, 10-bit resolution

20.9

Sensitivity at XOUT, YOUT, ZOUT

Sensitivity at XOUT, YOUT, ZOUT

Sensitivity at XOUT, YOUT, ZOUT

Sensitivity at XOUT, YOUT, ZOUT

Sensitivity Change Due to Temperature

0 g BIAS LEVEL

Initial 0 g Output

Initial 0 g Output

0 g Output over Temperature

0 g Offset Tempco

0 g Offset Tempco

NOISE PERFORMANCE

Noise Density (X-, Y-axes)

Noise Density (Z-axis)

OUTPUT DATA RATE/BANDWIDTH

Measurement Rate3

SELF-TEST4

Output Change in X-Axis

Output Change in Y-Axis

Output Change in Z-Axis

POWER SUPPLY

Operating Voltage Range (VS)

Interface Voltage Range (VDD I/O)

Supply Current

Standby Mode Leakage Current

Turn-On (Wale-Up) Time5

TEMPERATURE

Operating Temperature Range

±1.5 g, 10-bit or full resolution

±3 g, 10-bit resolution

±6 g, 10-bit resolution

±12 g, 10-bit resolution

Each axis

T = 25°C, XOUT, YOUT

T = 25°C, ZOUT

−40°C < T < 105°C, XOUT, YOUT, ZOUT

XOUT, YOUT

ZOUT

User selectable

Data rate ≥ 100 Hz, 2.0 ≤ VS ≤ 3.6

Data rate > 100 Hz

Data rate < 10 Hz

312

156

78

39

−150

−250

−250

200

200

6.25

0.20

−2.10

0.30

2.0

1.7

100

30

−40

ADXL312

Typ

±1.5, 3, 6, 12

±0.5

±0.1

±1

10

10

11

12

13

2.9

5.8

11.6

23.2

345

172

86

43

±0.01

±0.8

±1.5

340

470

170

55

0.1

1.4

Max

3.2

6.4

12.8

25.5

385

192

96

48

+150

+250

+250

440

595

3200

2.10

−0.20

3.40

3.6

VS

300

110

2

+105

Unit

g

%

Degrees

%

Bits

Bits

Bits

Bits

Bits

mg/LSB

mg/LSB

mg/LSB

mg/LSB

LSB/g

LSB/g

LSB/g

LSB/g

%/°C

mg

mg

mg

mg/°C

mg/°C

μg/√Hz

μg/√Hz

Hz

g

g

g

V

V

μA

μA

μA

ms

°C

Rev. 0 | Page 3 of 32

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