ADIS16362

Rev. 0 | Page 11 of 20

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

MSB FOR 12-BIT OUTPUT

ND EA

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

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

5 V

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

0 g

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

1 V

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

0 V

0 LSB

0x000

XXXX 0000 0000 0000

123

12

0x3E00

PREVIOUS

DON’T CARE

SUPPLY_OUT

XGYRO_OUT

YGYRO_OUT

ZGYRO_OUT

AUX_ADC

45

CS

SCLK

DIN

DOUT

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