ADIS16362
BURST READ DATA COLLECTION
Burst read data collection is a process-efficient method for collect-
ing data from the ADIS16362. In burst read, all output registers are
clocked out on DOUT, 16 bits at a time, in sequential data cycles
(each separated by one SCLK period). To start a burst read sequence,
set DIN = 0x3E00. The contents of each output register are then
shifted out on DOUT, starting with SUPPLY_OUT and ending
with AUX_ADC (see Figure 13). The addressing sequence shown
in Table 8 determines the order of the outputs in burst read.
OUTPUT DATA REGISTERS
Each output data register uses the format in Figure 12 and Table 9.
Figure 6 shows the positive direction for each inertial sensor. The
ND bit is equal to 1 when the register contains unread data. The
EA bit is high when any error/alarm flag in the DIAG_STAT
register is equal to 1.
MSB FOR 14-BIT OUTPUT
ND EA
MSB FOR 12-BIT OUTPUT
Figure 12. Output Register Bit Assignments
Table 9. Output Data Register Formats
Register
Bits
Scale
Reference
SUPPLY_OUT 12
2.418 mV See Table 10
XGYRO_OUT1 14
0.05°/sec See Table 11
YGYRO_OUT1 14
0.05°/sec See Table 11
ZGYRO_OUT1 14
0.05°/sec See Table 11
XACCL_OUT 14
0.333 mg See Table 12
YACCL_OUT 14
0.333 mg See Table 12
ZACCL_OUT 14
0.333 mg See Table 12
XTEMP_OUT2 12
0.136°C See Table 13
YTEMP_OUT2 12
0.136°C See Table 13
ZTEMP_OUT2 12
0.136°C See Table 13
AUX_ADC
12
805.8 μV See Table 14
1 Assumes that the scaling is set to ±300°/sec. This factor scales with the range.
2 0x0000 = 25°C (±5°C).
Table 10. Power Supply, Offset Binary Format
Supply
Voltage
Decimal Hex Binary
5.25 V
2171 LSB 0x87B XXXX 1000 0111 1011
5.002418 V 2069 LSB 0x815 XXXX 1000 0001 0101
5V
2068 LSB 0x814 XXXX 1000 0001 0100
4.997582 V 2067 LSB 0x813 XXXX 1000 0001 0011
4.75 V
1964 LSB 0x7AC XXXX 0111 1010 1100
Table 11. Rotation Rate, Twos Complement Format
Rotation Rate Decimal Hex
Binary
+300°/sec
+6000 LSB 0x1770 XX01 0111 0111 0000
+0.1°/sec
+2 LSB
0x0002 XX00 0000 0000 0010
+0.05°/sec
+1 LSB
0x0001 XX00 0000 0000 0001
0°/sec
0 LSB
0x0000 XX00 0000 0000 0000
−0.05°/sec
−1 LSB
0x3FFF XX11 1111 1111 1111
−0.1°/sec
−2 LSB
0x3FFE XX11 1111 1111 1110
−300°/sec
−6000 LSB 0x2890 XX10 1000 1001 0000
Table 12. Acceleration, Twos Complement Format
Acceleration Decimal Hex
Binary
+1.7 g
+5105 LSB 0x13F1 XX01 0011 1111 0001
+0.667 mg
+2 LSB
0x0002 XX00 0000 0000 0010
+0.333 mg
+1 LSB
0x0001 XX00 0000 0000 0001
0g
0 LSB
0x0000 XX00 0000 0000 0000
−0.333 mg
−1 LSB
0x3FFF XX11 1111 1111 1111
−0.667 mg
−2 LSB
0x3FFE XX11 1111 1111 1110
−1.7 g
−5105 LSB 0x2C0F XX10 1100 0000 1111
Table 13. Temperature, Twos Complement Format
Temperature Decimal Hex
Binary
+105°C
+588 LSB 0x24C XXXX 0010 0100 1100
+85°C
+441 LSB 0x1B9 XXXX 0001 1011 1001
+25.272°C
+2 LSB
0x002 XXXX 0000 0000 0010
+25.136°C
+1 LSB
0x001 XXXX 0000 0000 0001
+25°C
0 LSB
0x000 XXXX 0000 0000 0000
+24.864°C
−1 LSB
0xFFF XXXX 1111 1111 1111
+24.728°C
−2 LSB
0xFFE XXXX 1111 1111 1110
−40°C
−478 LSB 0xE22 XXXX 1110 0010 0010
Table 14. Analog Input, Offset Binary Format
Input Voltage Decimal Hex
Binary
3.3 V
4095 LSB 0xFFF XXXX 1111 1111 1111
1V
1241 LSB 0x4D9 XXXX 0100 1101 1001
1.6116 mV
2 LSB
0x002 XXXX 0000 0000 0010
805.8 μV
1 LSB
0x001 XXXX 0000 0000 0001
0V
0 LSB
0x000 XXXX 0000 0000 0000
CS
1
2
3
4
5
12
SCLK
DIN
0x3E00
DON’T CARE
DOUT
PREVIOUS
SUPPLY_OUT
XGYRO_OUT
YGYRO_OUT
ZGYRO_OUT
AUX_ADC
NOTES
1. THE DOUT LINE HAS BEEN SIMPLIFIED FOR SPACE CONSTRAINTS BUT, IDEALLY, SHOULD INCLUDE ALL REGISTERS FROM SUPPLY_OUT
THROUGH AUX_ADC.
Figure 13. Burst Read Sequence
Rev. 0 | Page 11 of 20