ADXL323 データシートの表示（PDF） - Analog Devices

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ADXL323

Small, Low Power, 2-Axis ±3 g iMEMS® Accelerometer

Analog Devices 

ADXL323

SPECIFICATIONS

TA = 25°C, VS = 3 V, CX = CY = 0.1 μF, acceleration = 0 g, unless otherwise noted. All minimum and maximum specifications are

guaranteed. Typical specifications are not guaranteed.

Table 1.

Parameter

SENSOR INPUT

Measurement Range

Nonlinearity

Package Alignment Error

Inter-Axis Alignment Error

Cross Axis Sensitivity1

SENSITIVITY (RATIOMETRIC)2

Sensitivity at XOUT, YOUT

Sensitivity Change Due to Temperature3

ZERO g BIAS LEVEL (RATIOMETRIC)

0 g Voltage at XOUT, YOUT

0 g Offset vs. Temperature

NOISE PERFORMANCE

Noise Density XOUT, YOUT

FREQUENCY RESPONSE4

Bandwidth XOUT, YOUTT5

RFILT Tolerance

Sensor Resonant Frequency

SELF TEST6

T

Logic Input Low

Logic Input High

ST Actuation Current

Output Change at XOUT

Output Change at YOUT

OUTPUT AMPLIFIER

Output Swing Low

Output Swing High

POWER SUPPLY

Operating Voltage Range

Supply Current

Turn-On Time7

TEMPERATURE

Operating Temperature Range

Conditions

Min

Each axis

±3

% of full scale

Each axis

VS = 3 V

270

VS = 3 V

Each axis

VS = 3 V

1.35

No external filter

Self Test 0 to Self Test 1

Self Test 0 to Self Test 1

No load

No load

1.8

VS = 3 V

No external filter

−25

Typ

±3.6

±0.3

±1

±0.1

±1

300

±0.015

1.5

±0.6

280

1600

32 ± 15%

5.5

+0.6

+2.4

+60

−150

+150

0.1

2.8

320

1

Max Unit

g

%

Degrees

Degrees

%

330 mV/g

%/°C

1.65 V

mg/°C

μg/√Hz rms

Hz

kΩ

kHz

V

V

μA

mV

mV

V

V

5.25 V

μA

ms

+70 °C

1 Defined as coupling between two axes.

2 Sensitivity is essentially ratiometric to VS.

3 Defined as the output change from ambient-to-maximum temperature or ambient-to-minimum temperature.

4 Actual frequency response controlled by user-supplied external filter capacitors (CX, CY).

5 Bandwidth with external capacitors = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.003 μF, bandwidth = 1.6 kHz. For CX, CY = 10 μF, bandwidth = 0.5 Hz.

6 Self-test response changes cubically with VS.

7 Turn-on time is dependent on CX, CY and is approximately 160 × CX or CY + 1 ms, where CX, CY are in μF.

Rev. 0 | Page 3 of 16

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