Adxl337 Module 3 Axis Analog Output Accelerometer

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 ±3 ±3.6 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 270 300 330 mV/g

Sensitivity Change Due to Temperature3 VS = 3 V ±0.01 %/°C

0 g BIAS LEVEL (RATIOMETRIC)

0 g Voltage at XOUT, YOUT VS = 3 V 1.35 1.5 1.65 V

0 g Voltage at ZOUT VS = 3 V 1.2 1.5 1.8 V

0 g Offset vs. Temperature XOUT, YOUT ±1.1 mg/°C

0 g Offset vs. Temperature ZOUT ±1.6 mg/°C

NOISE PERFORMANCE

Noise Density XOUT, YOUT 175 μg/√Hz rms

Noise Density ZOUT 300 μg/√Hz rms

FREQUENCY RESPONSE4

Bandwidth XOUT, YOUT5 No external filter 1600 Hz

Bandwidth ZOUT5 No external filter 550 Hz

RFILT Tolerance 32 ± 15% kΩ

Sensor Resonant Frequency 5.5 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 −150 −325 −600 mV

Output Change at YOUT Self test 0 to 1 +150 +325 +600 mV

Output Change at ZOUT Self test 0 to 1 +150 +550 +1000 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 No external filter 1 ms

TEMPERATURE

Operating Temperature Range −40 +85 °C

OVERVIEW:

-3-axis sensing

-Small, low profile package

-3 mm × 3 mm × 1.45 mm LFCSP

-Low power: 300 μA (typical)

-Single-supply operation: 1.8 V to 3.6 V

-10,000 g shock survival

-Excellent temperature stability

-Bandwidth adjustment with a single capacitor per axis

-RoHS/WEEE and lead-free compliant 

PACKAGE INCLUDES:

1 PCS x Adxl337 Module 3 Axis Accelerometer Analog Output

https://www.analog.com/en/products/adxl337.html#product-overview

//SOURCE CODE TAKEN FROM BELOW LINK

//http://arduinolearning.com/code/adxl337-accelerometer-arduino-uno-example.php

void setup()

{

  // Initialize serial communication at 115200 baud

  Serial.begin(115200);

}

// Read, scale, and print accelerometer data

void loop()

{

  // Get raw accelerometer data for each axis

  int rawX = analogRead(A0);

  int rawY = analogRead(A1);

  int rawZ = analogRead(A2);

  // Scale accelerometer ADC readings into common units

  // Scale map depends on if using a 5V or 3.3V microcontroller

  float scaledX, scaledY, scaledZ; // Scaled values for each axis

  scaledX = mapf(rawX, 0, 675, -scale, scale); // 3.3/5 * 1023 =~ 675

  scaledY = mapf(rawY, 0, 675, -scale, scale);

  scaledZ = mapf(rawZ, 0, 675, -scale, scale);

  // Print out raw X,Y,Z accelerometer readings

  Serial.print("X: "); Serial.println(rawX);

  Serial.print("Y: "); Serial.println(rawY);

  Serial.print("Z: "); Serial.println(rawZ);

  Serial.println();

  // Print out scaled X,Y,Z accelerometer readings

  Serial.print("X: "); Serial.print(scaledX); Serial.println(" g");

  Serial.print("Y: "); Serial.print(scaledY); Serial.println(" g");

  Serial.print("Z: "); Serial.print(scaledZ); Serial.println(" g");

  Serial.println();

  delay(2000); // Minimum delay of 2 milliseconds between sensor reads (500 Hz)

}

// Same functionality as Arduino's standard map function, except using floats

float mapf(float x, float in_min, float in_max, float out_min, float out_max)

{

  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;

}

// Make sure these two variables are correct for your setup

int scale = 3; // 3 (±3g) for ADXL337, 200 (±200g) for ADXL377

//connection

 //x-a0,y-a1,z-a2

//output

//Open the serial monitor and you will see something like this

//X: 384

//Y: 340

//Z: 281

//X: 0.41 g

//Y: 0.02 g

//Z: -0.50 g

//X: 410

//Y: 345

//Z: 345

//X: 0.64 g

//Y: 0.07 g

//Z: 0.07 g

15 days