ADIS16334BMLZ Analog Devices Inc, ADIS16334BMLZ Datasheet - Page 12

• Manufacturer Part Number: ADIS16334BMLZ
• Description: Low Profile IMU
• Manufacturer: Analog Devices Inc
• Series: iMEMS®, iSensor™r

Specifications of ADIS16334BMLZ

• Output Type: Digital - SPI
• Sensor Type: Accelerometer, Gyroscope, 3 Axis
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADIS16334
OUTPUT DATA REGISTERS
Table 9 provides a summary of the output registers. The most
significant bit in each output register provides a new data
indicator function. Every time a new data sample loads into the
output data registers, the ND bit is a 1, until a read operation
accesses the data sample. Then, this bit sets to 0, until the next
data sample loads in. The second most significant bit provides
an error/alarm indicator. This bit is equal to 1 if any error flag in
the DIAG_STAT register is equal to 1 (active).
Table 9. Output Data Register Summary
Register
XGYRO_OUT
YGYRO_OUT
ZGYRO_OUT
XACCL_OUT
YACCL_OUT
ZACCL_OUT
TEMP_OUT
1
Gyroscopes
The output registers for the gyroscopes (angular rate of rotation)
are XGYRO_OUT, YGYRO_OUT, and ZGRYO_OUT. Table 10
provides the bit assignments for these registers, along with the
digital formatting for converting the digital codes into angular
rate values. Table 11 provides several examples for converting the
14-bit, twos complement data into angular rate measurements,
and Figure 15 provides the physical/directional reference for
these sensors.
Table 10. Gyroscope Register Bit Assignments
Bit(s)
[15]
[14]
[13:0]
Lower byte address shown.
Description
New data, 1 = new data since last read access
Error/alarm
Angular rate output data. Twos complement digital
format, typical sensitivity = 0.05°/sec per LSB
Address
0x04
0x06
0x08
0x0A
0x0C
0x0E
0x10
1
Function
Accelerometer output, x-axis
Accelerometer output, y-axis
Accelerometer output, z-axis
Gyroscope temperature, x-axis
Gyroscope output, x-axis
Gyroscope output, y-axis
Gyroscope output, z-axis
Y-AXIS
a
Y
NOTES
1. ACCELERATION (
INDICATE THE DIRECTION OF MOTION THAT PRODUCES A POSITIVE
OUTPUT.
Figure 15. Sensor Axes and Orientation Reference Diagram
g
Y
PIN 20
PIN 2
a
X
,
a
a
Y
Z
Rev. 0 | Page 12 of 20
,
a
Z-AXIS
Z
) AND ROTATIONAL (
g
Z
Table 11. Gyroscope Data Format Examples
Rate
+300°/sec
+0.1°/sec
+0.05°/sec
0°/sec
−0.05°/sec
−0.1°/sec
−300°/sec
1
Accelerometers
The output registers for the accelerometers are XACCL_OUT,
YACCL_OUT, and ZACCL_OUT. Table 12 provides the bit
assignments for these registers, along with the digital formatting
for converting the digital codes into angular rate values. Table 13
provides several examples for converting the 14-bit, twos
complement data into acceleration measurements, and Figure 15
provides the physical/directional reference for these sensors.
Table 12. Accelerometer Register Bit Assignments
Bit(s)
[15]
[14]
[13:0]
Table 13. Acceleration, Twos Complement Format
Acceleration
+5 g
+2 mg
+1 mg
0 g
−1 mg
−2 mg
−5 g
The numbers in the rate column reflect the default range setting, ±300°/sec.
1
g
X
,
g
Y
Description
New data, 1 = new data since last read access
Error/alarm
Linear acceleration output data. Twos complement
digital format, typical sensitivity = 1 mg/LSB
,
g
Z
) ARROWS
g
X
Decimal
0 LSB
−1 LSB
−6000 LSB
Decimal
+5000 LSB
+2 LSB
+1 LSB
0 LSB
−1 LSB
−2 LSB
−5000 LSB
+6000 LSB
+2 LSB
+1 LSB
−2 LSB
X-AXIS
a
X
Hex
0x1770
0x0002
0x0001
0x0000
0x3FFF
0x3FFE
0x2890
Hex
0x1388
0x0002
0x0001
0x0000
0x3FFF
0x3FFE
0x2C78
Binary
XX01 0111 0111 0000
XX00 0000 0000 0010
XX00 0000 0000 0001
XX00 0000 0000 0000
XX11 1111 1111 1111
XX11 1111 1111 1110
XX10 1000 1001 0000
Binary
XX01 0011 1000 1000
XX00 0000 0000 0010
XX00 0000 0000 0001
XX00 0000 0000 0000
XX11 1111 1111 1111
XX11 1111 1111 1110
XX10 1100 0111 1000