ADIS16IMU4PCBZ datasheet(20/34 Pages) AD

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ADIS16467

Data Sheet

Rev. C | Page 20 of 34

Accelerometer Data Formatting

Table 26 and Table 27 show various numerical examples that

demonstrate the format of the linear acceleration data in both

16-bit and 32-bit formats.

Table 26. 16-Bit Accelerometer Data Format Examples

Acceleration

Decimal

Hex.

Binary

+40 g

+32,000

0x7D00

0111 1101 0000 0000

+2.5 mg

0x0002

0000 0000 0000 0010

+1.25 mg

0x0001

0000 0000 0000 0001

0 mg

0x0000

0000 0000 0000 0000

−1.25 mg

−1

0xFFFF

1111 1111 1111 1111

−2.5 mg

−2

0xFFFE

1111 1111 1111 1110

−40 g

−32,000

0x8300

1000 0011 0000 0000

Table 27. 32-Bit Accelerometer Data Format Examples

Acceleration

Decimal

Hex.

+40 g

+2,097,152,000

0x7D000000

+1.25/215 mg

0x00000002

+1.25/216 mg

0x00000001

0x00000000

−1.25/216 mg

−1

0xFFFFFFFF

−1.25/215 mg

−2

0xFFFFFFFE

−40 g

−2,097,152,000

0x83000000

X-Axis Accelerometer (X_ACCL_LOW and X_ACCL_OUT)

Table 28. X_ACCL_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x10, 0x11

Not applicable

Table 29. X_ACCL_LOW Bit Definitions

Bits

Description

[15:0]

X-axis accelerometer data; additional resolution bits

Table 30. X_ACCL_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x12, 0x13

Not applicable

Table 31. X_ACCL_OUT Bit Definitions

Bits

Description

[15:0]

X-axis accelerometer data, high word; twos complement,

±40 g range; 0 g = 0x0000, 1 LSB = 1.25 mg

The X_ACCL_LOW (see Table 28 and Table 29) and X_ACCL_

OUT (see Table 30 and Table 31) registers contain the

accelerometer data for the x-axis.

Y-Axis Accelerometer (Y_ACCL_LOW and Y_ACCL_OUT)

Table 32. Y_ACCL_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x14, 0x15

Not applicable

Table 33. Y_ACCL_LOW Bit Definitions

Bits

Description

[15:0]

Y-axis accelerometer data; additional resolution bits

Table 34. Y_ACCL_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x16, 0x17

Not applicable

Table 35. Y_ACCL_OUT Bit Definitions

Bits

Description

[15:0]

Y-axis accelerometer data, high word; twos complement,

±40 g range; 0 g = 0x0000, 1 LSB = 1.25 mg

The Y_ACCL_LOW (see Table 32 and Table 33) and Y_ACCL_

OUT (see Table 34 and Table 35) registers contain the

accelerometer data for the y-axis.

Z-Axis Accelerometer (Z_ACCL_LOW and Z_ACCL_OUT)

Table 36. Z_ACCL_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x18, 0x19

Not applicable

Table 37. Z_ACCL_LOW Bit Definitions

Bits

Description

[15:0]

Z-axis accelerometer data; additional resolution bits

Table 38. Z_ACCL_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x1A, 0x1B

Not applicable

Table 39. Z_ACCL_OUT Bit Definitions

Bits

Description

[15:0]

Z-axis accelerometer data, high word; twos complement,

±40 g range; 0 g = 0x0000, 1 LSB = 1.25 mg

The Z_ACCL_LOW (see Table 36 and Table 37) and Z_ACCL_

OUT (see Table 38 and Table 39) registers contain the

accelerometer data for the z-axis.

Internal Temperature (TEMP_OUT)

Table 40. TEMP_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x1C, 0x1D

Not applicable

Table 41. TEMP_OUT Bit Definitions

Bits

Description

[15:0]

Temperature data; twos complement,

1 LSB = 0.1°C, 0°C = 0x0000

The TEMP_OUT register (see Table 40 and Table 41) provides

a coarse measurement of the temperature inside of the ADIS16467.

This data is most useful for monitoring relative changes in the

thermal environment.

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