ADXL190 datasheet(2/5 Pages) AD

No de pièce	ADXL190

Description	Low Cost -100 gSingle Axis Accelerometer with Analog Output

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Fabricant	AD [Analog Devices]

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REV. 0

–2–

ADXL190–SPECIFICATIONS

ADXL190WQC

Parameter

Conditions

Min

Typ

Max

Units

SENSOR INPUT

Dynamic Range

1, 2, 3

Without Zero-g Adjust

±105

g

Alignment Error

±1

Degrees

Nonlinearity

0.2

%

Cross Axis Sensitivity

±2%

SENSITIVITY

Initial

4

Ratiometric

16.5

18.0

19.5

mV/g

Temperature Drift

5

∆ from +25°C

±0.5

%

ZERO g BIAS LEVEL

Initial

2, 3

Ratiometric

2.3

2.5

2.7

V

0 g Offset vs. Temperature

5

∆ from +25°C

1.0

g

Zero g Adjustment Gain

0.45

0.50

0.55

∆V

OUT/

∆V 0 g Adjust

Zero g Adjust Pin Input Impedance

20

30

40

k

Ω

NOISE PERFORMANCE

Noise Density

4

12

mg/

√Hz rms

FREQUENCY RESPONSE

3 dB Bandwidth

360

400

Hz

Sensor Resonant Frequency

24

kHz

SELF-TEST

Output Change

6

450

990

mV

Logic “1” Voltage

3.5

V

Logic “0” Voltage

1.0

V

Input Impedance

50

k

Ω

ANALOG OUTPUT

Output Voltage Range

IOUT =

±100 µA0.25

VS – 0.25

V

Capacitive Load Drive

1000

pF

POWER SUPPLY

Specified Performance

4.75

5.25

V

Quiescent Supply Current

2.0

5.0

mA

TEMPERATURE RANGE

Specified Performance

–40

+105

°C

NOTES

1Product is tested at

±50 g, and the combination of 0-g error, sensitivity error, and output voltage swing measurements provide the calculations for dynamic range.

20-g is nominally V

S/2. Use of the 0-g adjustment pin is used to null the 0- g error, resulting in increased dynamic range. It can also be used to create an asymmetrical

dynamic range if so desired.

3The output response is ratiometric and is described by the following equation. V

OUT (accel, VS) = [VS/2

±(a V

S/5 V)] + [(accel) (b VS + c VS

2)(1

± 0.08)]

Where a = 0.2 V, b = 2.712

× 10–3 1/g , c = 0.178 × 10–3 1/g/V.

4Measured at 100 Hz,

± 50 g.

5Specification refers to the maximum change in parameter from its initial value at +25

°C to its worst case value at T

MIN or TMAX.

6ST pin Logic “0” to “1”;

∆V

OUT = (

∆V

OUT @ 5 V)

× (V

S/5 V).

All min and max specifications are guaranteed. Typical specifications are not tested or guaranteed.

Specifications subject to change without notice.

(TA = TMIN to TMAX, VS = +5 V, Acceleration = 0 g unless otherwise noted)

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