ADIS16480 AD [Analog Devices], ADIS16480 Datasheet - Page 33

• Manufacturer Part Number: ADIS16480
• Description: Ten Degrees of Freedom Inertial Sensor
• Manufacturer: AD [Analog Devices]

Data Sheet
BAROMETERS
The BR_BIAS_HIGH register (see Table 130) and
BR_BIAS_LOW register (Table 131) provide an offset
control function and use the same format as the output
registers, BAROM_OUT and BAROM_LOW.
Table 130. BR_BIAS_HIGH (Page 2, Base Address = 0x42)
Bits
[15:0]
Table 131. BR_BIAS_LOW (Page 2, Base Address = 0x40)
Bits
[15:0]
Description (Default = 0x0000)
Barometric pressure bias correction factor, high word
Twos complement, ±1.3 bar measurement range,
0 bar = 0x0000, 1 LSB = 40 µbar
Description (Default = 0x0000)
Barometric pressure bias correction factor, low word
Twos complement, ±1.3 bar measurement range,
0 bar = 0x0000, 1 LSB = 40 µbar ÷ 2
16
= ~0.00061 µbar
Rev. 0 | Page 33 of 40
RESTORING FACTORY CALIBRATION
Turn to Page 3 (DIN = 0x8003) and set GLOB_CMD[6]
= 1 (DIN = 0x8240, DIN = 0x8300) to execute the factory
calibration restore function. This function resets each user
calibration register to zero, resets all sensor data to 0, and
automatically updates the flash memory within 72 ms. See
Table 146 for more information on GLOB_CMD.
POINT OF PERCUSSION ALIGNMENT
CONFIG[6] offers a point of percussion alignment function
that maps the accelerometer sensors to the corner of the package
identified in Figure 25. To activate this feature, turn to Page 3
(DIN = 0x8003), then set CONFIG[6] = 1 (DIN = 0x8A40,
DIN = 0x8B00). See Table 106 for more information on the
CONFIG register.
PIN 23
Figure 25. Point of Percussion Reference Point
PIN 1
POINT OF PERCUSSION
ALIGNMENT REFERENCE POINT.
SEE CONFIG[6].
ADIS16480