Electronic Components Datasheet Search |
|
ADIS16488 Datasheet(PDF) 24 Page - Analog Devices |
|
|
ADIS16488 Datasheet(HTML) 24 Page - Analog Devices |
24 / 36 page ADIS16488 Data Sheet Rev. B | Page 24 of 36 Linear Acceleration on Effect on Gyroscope Bias MEMS gyroscopes typically have a bias response to linear acceleration that is normal to their axis of rotation. The ADIS16488 offers an optional compensation function for this effect. Turn to Page 3 (DIN = 0x8003) and set CONFIG[7] = 1 (DIN = 0x9080, DIN = 0x9100). Table 74. CONFIG (Page 3, Base Address = 0x0A) Bits Description (Default = 0x00C0) [15:8] Not used 7 Linear-g compensation for gyroscopes (1 = enabled) 6 Point of percussion alignment (1 = enabled) [5:2] Not used 1 Real-time clock, daylight savings time (1: enabled, 0: disabled) 0 Real-time clock control (1: relative/elapsed timer mode, 0: calendar mode) ACCELEROMETERS The user-calibration for the accelerometers includes registers for adjusting bias and sensitivity, as shown in Figure 23. X-AXIS ACCL FACTORY CALIBRATION AND FILTERING X_ACCL_OUT X_ACCL_LOW XA_BIAS_HIGH XA_BIAS_LOW 1 + X_ACCL_SCALE Figure 23. User Calibration Signal Path, Gyroscopes Manual Bias Correction The xA_BIAS_HIGH (see Table 75, Table 76, and Table 77) and xA_BIAS_LOW (see Table 78, Table 79, and Table 80) registers provide a bias adjustment function for the output of each gyroscope sensor. The xA_BIAS_HIGH registers use the same format as x_ACCL_OUT registers. The xA_BIAS_LOW registers use the same format as x_ACCL_LOW registers. Table 75. XA_BIAS_HIGH (Page 2, Base Address = 0x1E) Bits Description (Default = 0x0000) [15:0] X-axis accelerometer offset correction, high word, Twos complement, 0 g = 0x0000, 1 LSB = 0.8 mg Table 76. YA_BIAS_HIGH (Page 2, Base Address = 0x22) Bits Description (Default = 0x0000) [15:0] Y-axis accelerometer offset correction, high word, Twos complement, 0 g = 0x0000, 1 LSB = 0.8 mg Table 77. ZA_BIAS_HIGH (Page 2, Base Address = 0x26) Bits Description (Default = 0x0000) [15:0] Z-axis accelerometer offset correction, high word, Twos complement, 0 g = 0x0000, 1 LSB = 0.8 mg Table 78. XA_BIAS_LOW (Page 2, Base Address = 0x1C) Bits Description (Default = 0x0000) [15:0] X-axis accelerometer offset correction, low word, Twos complement, 0 g = 0x0000, 1 LSB = 0.8 mg ÷ 216 = ~0.0000122 mg Table 79. YA_BIAS_LOW (Page 2, Base Address = 0x20) Bits Description (Default = 0x0000) [15:0] Y-axis accelerometer offset correction, low word, Twos complement, 0 g = 0x0000, 1 LSB = 0.8 mg ÷ 216 = ~0.0000122 mg Table 80. ZA_BIAS_LOW (Page 2, Base Address = 0x24) Bits Description (Default = 0x0000) [15:0] Z-axis accelerometer offset correction, low word;, Twos complement, 0 g = 0x0000, 1 LSB = 0.8 mg ÷ 216 = ~0.0000122 mg Manual Sensitivity Correction The x_ACCL_SCALE registers enable sensitivity adjustment (see Table 81, Table 82, Table 83). Table 81. X_ACCL_SCALE (Page 2, Base Address = 0x0A) Bits Description (Default = 0x0000) [15:0] X-axis accelerometer scale correction, Twos complement, 0x0000 = unity gain, 1 LSB = 1 ÷ 215 = ~0.0003052% Table 82. Y_ACCL_SCALE (Page 2, Base Address = 0x0C) Bits Description (Default = 0x0000) [15:0] Y-axis accelerometer scale correction, Twos complement, 0x0000 = unity gain, 1 LSB = 1 ÷ 215 = ~0.0003052% Table 83. Z_ACCL_SCALE (Page 2, Base Address = 0x0E) Bits Description (Default = 0x0000) [15:0] Z-axis accelerometer scale correction, Twos complement, 0x0000 = unity gain, 1 LSB = 1 ÷ 215 = ~0.0003052% MAGNETOMETERS The user calibration registers enable both hard-iron and soft- iron correction, as shown in the following relationship: + × = + + + H H H M M M S S S S S S S S S M M M Z Y X Z Y X ZC YC XC 1 1 1 33 32 31 23 22 21 13 12 11 The MX, MY, and MZ variables represent the magnetometer data, prior to application of the user correction formula. The MXC, MYC, and MZC represent the magnetometer data, after the application of the user correction formula. |
Similar Part No. - ADIS16488 |
|
Similar Description - ADIS16488 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |