ADIS16250ACCZ Analog Devices Inc, ADIS16250ACCZ Datasheet - Page 13

• Manufacturer Part Number: ADIS16250ACCZ
• Description: IC ACCEL GYRO SPI PROG 18-LGA
• Manufacturer: Analog Devices Inc
• Series: iSensor™r

Specifications of ADIS16250ACCZ

• Range °/s: ±80°/s, ±160°/s, ±320°/s
• Sensitivity: ±0.2%
• Typical Bandwidth: 50Hz
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 18mA
• Output Type: SPI
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-LGA
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Rad Hardened: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ADIS16250/PCBZ - BOARD EVAL PCB ADIS16250
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

PROGRAMMING AND CONTROL
CONTROL REGISTER OVERVIEW
The ADIS16250/ADIS16255 offer many programmable features
controlled by writing commands to the appropriate control
registers using the SPI. Table 8 provides a summary of these
control registers, which controls the operation of the following
parameters:
•
•
•
•
Table 8. Control Register Memory Map
Register Name
GYRO_OFF
GYRO_SCALE
ALM_MAG1
ALM_MAG2
ALM_SMPL1
ALM_SMPL2
ALM_CTRL
AUX_DAC
GPIO_CTRL
MSC_CTRL
SMPL_PRD
SENS/AVG
SLP_CNT
STATUS
COMMAND
1
The contents of the upper byte are nonvolatile; the contents of the lower byte are volatile.
Calibration
Global commands
Operational control
•
•
•
•
•
•
Operational status and diagnostics
•
•
•
Sample rate
Power management
Digital filtering
Dynamic range
DAC output
Digital I/O
Self-test
Status conditions
Alarms
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
W
Volatility
Nonvolatile
Nonvolatile
Nonvolatile
Nonvolatile
Nonvolatile
Nonvolatile
Nonvolatile
Volatile
Volatile
Nonvolatile
Nonvolatile
Nonvolatile
Volatile
Volatile
N/A
1
Address
0x15, 0x14
0x17, 0x16
0x18 to 0x1F
0x21, 0x20
0x23, 0x22
0x25, 0x24
0x27, 0x26
0x29, 0x28
0x2A to 0x2F
0x31, 0x30
0x33, 0x32
0x35, 0x34
0x37, 0x36
0x39, 0x38
0x3B, 0x3A
0x3D, 0x3C
0x3F, 0x3E
Rev. D | Page 13 of 20
2
2
Bytes
2
2
8
2
2
2
2
2
6
2
2
2
2
2
2
Function
Gyroscope bias offset factor
Gyroscope scale factor
Reserved
Alarm 1 amplitude threshold and polarity
Alarm 2 amplitude threshold and polarity
Alarm 1 sample period
Alarm 2 sample period
Alarm control register
Reserved
Auxiliary DAC data
Auxiliary digital I/O control register
Miscellaneous control register
ADC sample period control
Defines the dynamic range (sensitivity setting)
and the number of taps for the digital filter
Counter used to determine length of power-
down mode
System status register
System command register
CONTROL REGISTER STRUCTURE
The ADIS16250/ADIS16255 uses a temporary, RAM-based
memory structure to facilitate the control registers displayed in
Table 8. The start-up configuration is stored in a flash memory
structure that automatically loads into the control registers during
the start-up sequence. Each nonvolatile register has a correspond-
ing flash memory location, for storing the latest configuration
contents. Since flash memory has endurance limitations, the
contents of each nonvolatile register must be manually stored
to flash (note that the contents of the control register contents
are only nonvolatile when they are stored to flash). The manual
flash update command, made available in the COMMAND
register, provides this function. The ENDURANCE register
provides a counter that allows for memory reliability manage-
ment against the write cycle specification.
ADIS16250/ADIS16255
Reference Table
Table 9, Table 10
Table 11, Table 12
Table 31, Table 32
Table 35, Table 36
Table 33, Table 34
Table 37, Table 38
Table 39, Table 40
Table 21, Table 22
Table 23, Table 24
Table 26, Table 27
Table 15, Table 16
Table 19, Table 20
Table 17, Table 18
Table 28, Table 29
Table 13, Table 14