ADXL377 datasheet(3/13 Pages) AD

Numer części	ADXL377

Szczegółowy opis	3-Axis 짹200 g Analog MEMS

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Preliminary Technical Data

ADXL377

Rev. PrB | Page 3 of 13

SPECIFICATIONS

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

guaranteed. Typical specifications are not guaranteed.

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

SENSOR INPUT

Each axis

Measurement Range

±200

g

Nonlinearity

% of full scale

±0.3

%

Package Alignment Error

±1

Degrees

Interaxis Alignment Error

±0.1

Degrees

Cross-Axis Sensitivity1

±1

%

SENSITIVITY (RATIOMETRIC)2

Each axis

Sensitivity at XOUT, YOUT, ZOUT

VS = 3 V

5.8

6.5

7.2

mV/g

Sensitivity Change Due to Temperature3

VS = 3 V

±0.01

%/°C

0 g BIAS LEVEL (RATIOMETRIC)

0 g Voltage at XOUT, YOUT, ZOUT

VS = 3 V, 25oC

1.4

1.5

1.6

V

0 g Offset vs. Temperature XOUT, YOUT

±11

mg/°C

0 g Offset vs. Temperature ZOUT

±15

mg/°C

NOISE PERFORMANCE

Noise Density XOUT, YOUT

2.4

mg/√Hz rms

Noise Density ZOUT

3.6

mg/√Hz rms

FREQUENCY RESPONSE4

Bandwidth XOUT, YOUT5

1 nF external filter

1600

Hz

Bandwidth ZOUT5

1 nF external filter

1200

Hz

RFILT Tolerance

32 ± 15%

kΩ

Sensor Resonant Frequency

16.5

kHz

SELF TEST6

Logic Input Low

0.6

V

Logic Input High

2.4

V

ST Actuation Current

60

μA

Output Change at XOUT

Self test 0 to 1

- 6.5

mV

Output Change at YOUT

Self test 0 to 1

6.5

mV

Output Change at ZOUT

Self test 0 to 1

11.5

mV

OUTPUT AMPLIFIER

Output Swing Low

No load

0.1

V

Output Swing High

No load

2.8

V

POWER SUPPLY

Operating Voltage Range7

1.8

3.0

3.6

V

Supply Current

VS = 3 V

300

μA

Turn-On Time8

1nF external filter

1

ms

TEMPERATURE

Operating Temperature Range

−40

+85

°C

1 Defined as coupling between any 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, CZ).

5 Bandwidth with external capacitors = 1/(2 × π × 32 kΩ × C). For CX, CY = 0.003 μF, bandwidth = 1.6 kHz. For CZ = 0.01 μF, bandwidth = 500 Hz. For CX, CY, CZ = 10 μF,

bandwidth = 0.5 Hz.

6 Self test response changes cubically with VS.

7 Tested at 3.0 V and guaranteed by design only (not tested) to work over the full range from 1.8 V to 3.6 V.

8 Turn-on time is dependent on CX, CY, CZ and is approximately 160 × (CX or CY or CZ) + 1, where CX, CY, and CZ are in μF and the resulting turn-on time is in ms.

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