ADIS16505-2SLASHPCBZ datasheet(25/41 Pages) AD

25 / 41 page

Data Sheet

ADIS16505

Rev. C | Page 25 of 41

Gyroscope Measurement Range/Scale Factor

Table 12 provides the range and scale factor for the angular rate

(gyroscope) measurements in each ADIS16505 model.

Table 12. Gyroscope Measurement Range and Scale Factors

Model

Range, ±ωMAX

(°/sec)

Scale Factor, KG

(°/sec/LSB)

ADIS16505-1BMLZ

±125

0.00625

ADIS16505-2BMLZ

±500

0.025

ADIS16505-3BMLZ

±2000

0.1

Gyroscope Data Formatting

Table 13 and Table 14 offer various numerical examples that

demonstrate the format of the rotation rate data in both 16-bit

and 32-bit formats.

Table 13. 16-Bit Gyroscope Data Format Examples

Rotation Rate

Decimal

Hex

Binary

+ωMAX

+20,000

0x4E20

0100 1110 0010 0000

+2 KG

0x0002

0000 0000 0000 0010

+KG

0x0001

0000 0000 0000 0001

0°/sec

0x0000

0000 0000 0000 0000

−KG

−1

0xFFFF

1111 1111 1111 1111

−2 KG

−2

0xFFFE

1111 1111 1111 1110

−ωMAX

−20,000

0xB1E0

1011 0001 1110 0000

Table 14. 32-Bit Gyroscope Data Format Examples

Rotation Rate (°/sec)

Decimal

Hex

+ωMAX

+1,310,720,000

0x4E200000

+KG/215

0x00000002

+KG/216

0x00000001

0x0000000

−KG /216

−1

0xFFFFFFFF

−KG /215

−2

0xFFFFFFFE

−ωMAX

−1,310,720,000

0xB1E00000

X-Axis Gyroscope (X_GYRO_LOW and X_GYRO_OUT)

Table 15. X_GYRO_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x04, 0x05

Not applicable

Table 16. X_GYRO_LOW Bit Definitions

Bits

Description

[15:0]

X-axis gyroscope data; additional resolution bits

Table 17. X_GYRO_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x06, 0x07

Not applicable

Table 18. X_GYRO_OUT Bit Definitions

Bits

Description

[15:0]

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

0°/sec = 0x0000, 1 LSB = KG (See Table 12 for KG)

The X_GYRO_LOW (see Table 15 and Table 16) and X_GYRO_

OUT (see Table 17 and Table 18) registers contain the gyroscope

data for the x-axis.

Y-Axis Gyroscope (Y_GYRO_LOW and Y_GYRO_OUT)

Table 19. Y_GYRO_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x08, 0x09

Not applicable

Table 20. Y_GYRO_LOW Bit Definitions

Bits

Description

[15:0]

Y-axis gyroscope data; additional resolution bits

Table 21. Y_GYRO_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x0A, 0x0B

Not applicable

Table 22. Y_GYRO_OUT Bit Definitions

Bits

Description

[15:0]

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

0°/sec = 0x0000, 1 LSB = KG (see Table 12 for KG)

The Y_GYRO_LOW (see Table 19 and Table 20) and Y_GYRO_

OUT (see Table 21 and Table 22) registers contain the gyroscope

data for the y-axis.

Z-Axis Gyroscope (Z_GYRO_LOW and Z_GYRO_OUT)

Table 23. Z_GYRO_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x0C, 0x0D

Not applicable

Table 24. Z_GYRO_LOW Bit Definitions

Bits

Description

[15:0]

Z-axis gyroscope data; additional resolution bits

Table 25. Z_GYRO_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x0E, 0x0F

Not applicable

Table 26. Z_GYRO_OUT Bit Definitions

Bits

Description

[15:0]

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

0°/sec = 0x0000, 1 LSB = KG (see Table 12 for KG)

The Z_GYRO_LOW (see Table 23 and Table 24) and Z_GYRO_

OUT (see Table 25 and Table 26) registers contain the gyroscope

data for the z-axis.

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