Programmable Digital Gyroscope Sensor
Data Sheet ADIS16260/ADIS16265
Rev. D
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FEATURES
Yaw rate gyroscope with range scaling
±80°/sec, ±160°/sec, and ±320°/sec settings
No external configuration required to start data collection
Start-up time: 165 ms
Sleep mode recovery time: 2.5 ms
Factory-calibrated sensitivity and bias
ADIS16265 calibration temperature range: −40°C to +85°C
ADIS16260 calibration temperature: +25°C
SPI-compatible serial interface
Relative angle displacement output
Embedded temperature sensor
Programmable operation and control
Automatic and manual bias correction controls
Sensor bandwidth selection: 50 Hz/330 Hz
Sample rate: 256 SPS/2048 SPS settings
Bartlett window FIR filter length, number of taps
Digital I/O: data ready, alarm indicator, general-purpose
Alarms for condition monitoring
Sleep mode for power management
DAC output voltage
Single-command self-test
Single-supply operation: 4.75 V to 5.25 V
3.3 V compatible digital lines
2000 g shock survivability
Operating temperature range: −40°C to +105°C
APPLICATIONS
Platform control and stabilization
Navigation
Medical instrumentation
Robotics
GENERAL DESCRIPTION
The ADIS16260 and ADIS16265 are programmable digital
gyroscopes that combine industry-leading MEMS and signal
processing technology in a single compact package. They provide
accuracy performance that would require full motion calibration
with any other MEMS gyroscope in their class. When power is
applied, the ADIS16260 and ADIS16265 automatically start up
and begin sampling sensor data, without requiring configuration
commands from a system processor. An addressable register
structure and a common serial peripheral interface (SPI) provide
simple access to sensor data and configuration settings. Many
digital processor platforms support the SPI with simple firmware-
level instructions.
The ADIS16260 and ADIS16265 provide several programmable
features for in-system optimization. The sensor bandwidth switch
(50 Hz and 330 Hz), Bartlett window FIR filter length, and sample
rate settings provide users with controls that enable noise vs.
bandwidth optimization. The digital input/output lines offer
options for a data ready signal that helps the master processor
efficiently manage data coherency, an alarm indicator signal
for triggering master processor interrupts, and a general-
purpose function for setting and monitoring system-level digital
controls/conditions.
The ADIS16260 and ADIS16265 are drop-in replacements for
the ADIS1625x family and come in LGA packages (11.2 mm ×
11.2 mm × 5.5 mm) that meet Pb-free solder reflow profile
requirements, per JEDEC J-STD-020. They have an extended
operating temperature range of −40°C to +105°C.
FUNCTIONAL BLOCK DIAGRAM
RST
DIO2 VCC
SELF-TEST
ADIS16260/ADIS16265
DIO1
SCLK
GND
DIN
DOUT
CS
TEMPERATURE
SENSOR
POWER
SUPPLY
AUX
ADC
AUX
DAC
VREF
FILT
RATE
CLOCK
CALIBRATION
CONTROLLER
ALARMS
FILTER
USER
CONTROL
REGISTERS
SPI
PORT
INPUT/
OUTPUT
OUTPUT
DATA
REGISTERS
MEMS
GYROSCOPE
SENSOR
08246-001
POWER
MANAGEMENT
Figure 1.
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Timing Specifications .................................................................. 5
Absolute Maximum Ratings ............................................................ 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 8
Theory of Operation ........................................................................ 9
Sensing Element ........................................................................... 9
Data Sampling and Processing ................................................... 9
User Interface ................................................................................ 9
Basic Operation .......................................................................... 10
SPI Write Commands ................................................................ 11
SPI Read Commands ................................................................. 11
Memory Map .............................................................................. 12
Processing Sensor Data ............................................................. 13
Operational Controls ................................................................. 13
Input/Output Functions ............................................................ 15
Diagnostics .................................................................................. 16
Product Identification ................................................................ 17
Applications Information .............................................................. 18
Assembly ...................................................................................... 18
Bias Optimization ....................................................................... 18
Interface Printed Circuit Board (PCB) .................................... 18
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 20
REVISION HISTORY
10/11—Re v. C to Rev. D
Change to Step 9, Bias Optimization Section ............................. 18
5/11—Rev. B to Re v. C
Changes to Bias Optimization Section ........................................ 18
12/10—Re v. A to Re v. B
Changes to Equation in Internal Sample Rate Section .............. 13
Changes to Figure 15 ...................................................................... 14
Changes to Bias Optimization Section ........................................ 18
10/09—Rev. 0 to Rev. A
Added ADIS16260 .............................................................. Universal
Changes to Features List and General Description Section ........ 1
Changes to Table 1 ............................................................................ 4
Change to Absolute Maximum Ratings Table Section ................ 6
Changes to Interface Printed Circuit Board Section ................. 18
Changes to Ordering Guide .......................................................... 20
9/09—Revision 0: Initial Version
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 3 of 20
SPECIFICATIONS
TA = −40°C to +105°C, VCC = 5.0 V, angular rate = 0°/sec, ±1 g, ±320°/sec range setting, unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
SENSITIVITY1 Clockwise rotation is positive output
25°C, dynamic range = ±320°/sec2 0.07326 °/sec/LSB
25°C, dynamic range = ±160°/sec 0.03663 °/sec/LSB
25°C, dynamic range = ±80°/sec 0.01832 °/sec/LSB
Initial Tolerance 25°C, dynamic range = ±320°/sec ±0.2 ±1 %
Temperature Coefficient ADIS16260 125 ppm/°C
ADIS16265
25
ppm/°C
Nonlinearity Best fit straight line 0.1 % of FS
BIAS
In-Run Bias Stability
25°C, 1σ
0.007
°/sec
Turn-On-to-Turn-On Bias Stability 25°C, 1σ 0.025 °/sec
Angular Random Walk 25°C, 1σ 2 °/√hour
Temperature Coefficient ADIS16260 0.03 °/sec/°C
ADIS16265 0.005 °/sec/°C
Linear Acceleration Effect Any axis 0.2 °/sec/g
Voltage Sensitivity VCC = 4.75 V to 5.25 V 0.5 °/sec/V
NOISE PERFORMANCE
Output Noise
25°C, ±320°/sec range, no filtering, 50 Hz, 256 SPS
0.4
°/sec rms
25°C, ±320°/sec range, no filtering, 330 Hz, 2048 SPS 0.9 °/sec rms
25°C, ±160°/sec range, 4-tap filter setting, 50 Hz 0.2 °/sec rms
25°C, ±80°/sec range, 16-tap filter setting, 50 Hz 0.1 °/sec rms
Rate Noise Density 25°C, f = 25 Hz, ±320°/sec range, no filtering 0.044 °/sec/√Hz rms
FREQUENCY RESPONSE
3 dB Bandwidth SENS_AVG[7] = 0 50 Hz
SENS_AVG[7] = 1 330 Hz
Sensor Resonant Frequency 14 kHz
SELF-TEST STATE
Change for Positive Stimulus 320°/sec dynamic range setting +575 +1100 +1500 LSB
Change for Negative Stimulus 320°/sec dynamic range setting −575 −1100 −1500 LSB
Internal Self-Test Cycle Time 25 ms
ADC INPUT
Resolution
12
Bits
Integral Nonlinearity ±2 LSB
Differential Nonlinearity ±1 LSB
Offset Error ±4 LSB
Gain Error ±2 LSB
Input Range 0 2.5 V
Input Capacitance
During acquisition
20
pF
ON-CHIP VOLTAGE REFERENCE 2.5 V
Accuracy 25°C −10 +10 mV
Temperature Coefficient ±40 ppm/°C
Output Impedance 70 Ω
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 4 of 20
Parameter Test Conditions/Comments Min Typ Max Unit
DAC OUTPUT 5 kΩ/100 pF to GND
Resolution 12 Bits
Relative Accuracy For Code 101 to Code 4095 4 LSB
Differential Nonlinearity 1 LSB
Offset Error
±5
Gain Error ±0.5 %
Output Range 0 2.5 V
Output Impedance 2 Ω
Output Settling Time 10 µs
LOGIC INPUTS Internal 3.3 V interface
Input High Voltage, VINH 2.0 V
Input Low Voltage, VINL 0.8 V
Logic 1 Input Current, IINH VIH = 3.3 V ±0.2 ±10 µA
Logic 0 Input Current, IINL VIL = 0 V
All Except RST −40 −60 µA
RST The RST pin has an internal pull-up. −1 mA
Input Capacitance, CIN 10 pF
DIGITAL OUTPUTS Internal 3.3 V interface
Output High Voltage, V
OH
I
SOURCE
= 1.6 mA
2.4
Output Low Voltage, VOL ISINK = 1.6 mA 0.4 V
SLEEP TIMER
Timeout Period3
0.5
128
sec
START-UP TIME
Initial Start-Up Time 165 ms
Sleep Mode Recovery
2.5
Flash Update Time 50 ms
Flash Test Process Time Normal mode, SMPL_PRD[7:0] ≤ 0x07 18 ms
Low power mode, SMPL_PRD[7:0] ≥ 0x08 70 ms
FLASH MEMORY
Endurance4 20,000 Cycles
Data Retention5 TJ = 55°C 10 Years
CONVERSION RATE
Minimum Conversion Time SMPL_PRD[7:0] = 0x00 0.488 ms
Maximum Conversion Time SMPL_PRD[7:0] = 0xFF 7.75 sec
Maximum Throughput Rate
SMPL_PRD[7:0] = 0x00
2048
Minimum Throughput Rate SMPL_PRD[7:0] = 0xFF 0.129 SPS
POWER SUPPLY
Operating Voltage Range, VCC 4.75 5.0 5.25 V
Power Supply Current Low power mode, SMPL_PRD[7:0] ≥ 0x08 17 mA
Normal mode, SMPL_PRD[7:0] ≤ 0x07 41 mA
Sleep mode 350 µA
1 ADIS16260/ADIS16265 characterization data represents ±4σ to fall within the ±1% limit.
2 The maximum guaranteed measurement range is ±320°/sec. The sensor outputs will measure beyond this range, but performance is not assured.
3 Guaranteed by design.
4 Endurance is qualified as per JEDEC Standard 22, Method A117, and measured at −40°C, +25°C, +85°C, and +125°C.
5 Retention lifetime equivalent at a junction temperature (TJ) of 55°C, as per JEDEC Standard 22, Method A117. Retention lifetime decreases with junction temperature.
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 5 of 20
TIMING SPECIFICATIONS
TA = −40°C to +85°C, VCC = 5.0 V, unless otherwise noted.
Table 2.
Normal Mode
(SMPL_PRD[7:0] ≤ 0x07, fS ≥ 64 Hz)
Low Power Mode
(SMPL_PRD[7:0] ≥ 0x08, fS ≤ 56.9 Hz)
Parameter Description Min1 Typ Max1 Min1 Typ Max1 Unit
fSCLK Serial clock 0.01 2.5 0.01 1.0 MHz
tDATARATE Data rate period 32 42 µs
tSTALL Stall period between data 9 12 µs
tCS Chip select to clock edge 48.8 48.8 ns
t
DAV
Data output valid after SCLK falling
edge2
100
100
ns
tDSU Data input setup time before SCLK
rising edge
24.4 24.4 ns
tDHD Data input hold time after SCLK
rising edge
48.8 48.8 ns
tDF Data output fall time 5 12.5 5 12.5 ns
tDR Data output rise time 5 12.5 5 12.5 ns
tSFS CS high after SCLK edge3 5 5 ns
1 Guaranteed by design; not production tested.
2 The MSB presents an exception to this parameter. The MSB clocks out on the falling edge of CS. The rest of the DOUT bits are clocked after the falling edge of SCLK and
are governed by this specification.
3 This parameter may need to be expanded to allow for proper capture of the LSB. After CS goes high, the DOUT line goes into a high impedance state.
Timing Diagrams
CS
SCLK
t
DATARATE
t
STALL
08246-002
Figure 2. SPI Chip Select Timing
CS
SCLK
DOUT
DIN
1 2 3 4 5 6 15 16
R/W A5 A4 A3 A2 D2
MSB DB14
D1 LSB
DB13 DB12 DB10DB11 DB2 LSBDB1
tCS tSFS
tDAV
tDHD
tDSU
*
*NOT DEF INED
08246-003
Figure 3. SPI Timing (Using SPI Settings Typically Identified as CPOL = 1, CPHA = 1)
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 6 of 20
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter Rating
Acceleration
Any Axis, Unpowered, 0.5 ms
2000 g
Any Axis, Powered, 0.5 ms 2000 g
VCC to GND −0.3 V to +6.0 V
Digital Input/Output Voltage to GND −0.3 V to +5.5 V
Analog Inputs to GND −0.3 V to +3.5 V
Operating Temperature Range1 −40°C to +125°C
Storage Temperature Range
1
−65°C to +150°C
1 Extended exposure to temperatures outside the temperature range of −40°C
to +85°C can adversely affect the accuracy of the factory calibration. For best
accuracy, store the part within the temperature range of −40°C to +85°C.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 7 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NOTES
1. DNC = DO NO T CO NNE CT.
2.
20 19 18 17 16 15
14
13
12
11
109
876
5
4
3
2
1
DNC
GND
DNCDNCDIO2 RST
VREF GND VCC VCC
DNC
AUX
DAC
AUX
ADC
RATE
FILT
DIO1
CS
DIN
DOUT
SCLK
POSITIVE OUTPUT
ROTATIONAL
DIRECTION
TOP VI EW
(No t t o Scal e)
ADIS16260/
ADIS16265
08246-005
THE P INS CANNO T BE S E E N FROM THE TOP .
THIS LOOK-THOUGH VIEW OF THEIR LOCATION
IS OF F ERED FOR REFERENCE IN DEVELO PI NG
PCB PATTE RNS .
Figure 4. Pin Configuration
PI N 1
PI N 5 PIN 6
PI N 10
AXIS OF ROTATION
NOTES
1. ARROW INDICATES THE DIRECTION OF ROTATION
THAT PRODUCES A POSIT I VE RESPONSE IN
THE GYRO_OUT REGISTER.
08246-022
Figure 5. Axial Orientation
Table 4. Pin Function Descriptions
Pin No. Mnemonic Type 1 Description
1 SCLK I SPI Serial Clock.
2 DOUT O SPI Data Output. Clocks output on SCLK falling edge.
3 DIN I SPI Data Input. Clocks input on SCLK rising edge.
4 CS I SPI Chip Select. Active low.
5, 6 DIO1, DIO2 I/O Configurable Digital Input/Output.
7 RST I Reset. Active low.
8, 9, 10, 11 DNC Do Not Connect.
12 AUX DAC O Auxiliary DAC Output.
13 AUX ADC I Auxiliary ADC Input.
14 RATE O Rate Output. For bandwidth reduction only; output is not specified.
15
FILT
I
Filter Terminal.
16, 17 VCC S 5.0 V Power Supply.
18, 19 GND S Ground.
20 VREF O Precision Reference Output.
1 I = input, I/O = input/output, O = output, S = supply.
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 8 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
0.001
0.01
0.1
1
0.1 110 100 1k
Tau (Seconds)
ROOT ALLAN VARIANCE (°/sec)
08246-020
–1σ
MEAN
+1σ
Figure 6. Gyroscope Allan Variance
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 9 of 20
THEORY OF OPERATION
The ADIS16260 and ADIS16265 integrate a MEMS gyroscope
with data sampling, signal processing, and calibration functions,
along with a simple user interface. This sensing system collects
data autonomously and makes it available to any processor system
that supports a 4-wire serial peripheral interface (SPI).
SENSING ELEMENT
The sensing element operates on the principle of a resonator
gyro. Two polysilicon sensing structures each contain a dither
frame that is electrostatically driven to resonance, producing
the necessary velocity element to produce a Coriolis force
during angular rate. At two of the outer extremes of each frame,
orthogonal to the dither motion, movable fingers are placed
between fixed pickoff fingers to form a capacitive pickoff
structure that senses Coriolis motion. The resulting signal is fed
into a series of gain and demodulation stages that produce the
electrical rate signal output. The differential structure minimizes
the response to linear acceleration (gravity, vibration, and so
on) and to EMI.
DATA SAMPLING AND PROCESSING
The ADIS16260 and ADIS16265 run autonomously, based on
the configuration in the user control registers. The analog
gyroscope signal feeds into an analog-to-digital converter
(ADC) stage, which passes digitized data into the controller for
data processing and register loading. Data processing in the
embedded controller includes correction formulas, filtering,
and checking for preset alarm conditions. The correction formulas
are unique for each individual ADIS16260/ADIS16265 and come
from the factory characterization of each device over a
temperature range of −40°C to +85°C.
MEMS
SENSOR
CLOCK
CONTROLLER
CONTROL
REGISTERS
SPI SIGNALS
SPI PORT
08246-007
OUTPUT
REGISTERS
TEMP
SENSOR
AIN
SIGNALS
SPI PORT
ADC
Figure 7. Simplified Sensor Signal Processing Diagram
USER INTERFACE
SPI Interface
Data collection and configuration commands both use the SPI,
which consists of four wires. The chip select (CS) signal activates
the SPI interface, and the serial clock (SCLK) signal synchronizes
the serial data lines. The serial input data clocks into DIN on
the SCLK rising edge, and the serial output data clocks out of
DOUT on the SCLK falling edge. Many digital processor plat-
forms support this interface with dedicated serial ports and
simple instruction sets.
User Registers
The user registers provide addressing for all input/output
operations on the SPI interface. Each 16-bit register has its
own unique bit assignment and has two 7-bit addresses: one
for its upper byte and one for its lower byte. Table 7 provides
a memory map of the user registers, along with the function of
each register.
The control registers use a dual memory structure. The SRAM
controls operation while the part is on and facilitates all user
configuration inputs. The flash memory provides nonvolatile
storage for control registers that have flash backup (see Table 7).
Storing configuration data in the flash memory requires a separate
command (GLOB_CMD[3] = 1, DIN = 0xBE08). When the
device powers on or resets, the flash memory contents are
loaded into the SRAM, and the device then starts producing
data according to the configuration in the control registers.
NONVOLATILE
FLASH MEMORY
(NO SPI ACCESS)
MANUAL
FLASH
BACKUP
STARTUP
OR RESET
VOLATILE
SRAM
SPI ACCESS
08246-008
Figure 8. SRAM and Flash Memory Diagram
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 10 of 20
BASIC OPERATION
The ADIS16260 and ADIS16265 require only power, ground,
and the four SPI signals to produce data and make it available
to an embedded processor. Figure 9 provides a schematic for
connecting the ADIS16260 and ADIS16265 to a SPI-compatible
processor and includes one of the configurable digital I/O lines.
The MSC_CTRL[2:0] bits are used to configure this line as a data
ready indicator (see the Data Ready I/O Indicator section).
ADIS16260/
ADIS16265
SPI SLAVE
SYSTEM
PROCESSOR
SPI MASTER
16 17
18 19
4
1
3
2
5
SCLK
DIN
DOUT
5V
VCC VCC
GND GND
V
DD
INPUT/OUTPUT LINESARE COM PATIBLE
WITH 3.3V OR 5V LOGIC LEVELS
DIO1
CS
SCLK
MOSI
MISO
IRQ
SS
08246-009
Figure 9. Electrical Connection Diagram
Table 5. Generic Master Processor Pin Names and Functions
Pin Name Function
SS Slave select
IRQ
Interrupt request input
MOSI Master output, slave input
MISO Master input, slave output
SCLK Serial clock
The ADIS16260 and ADIS16265 SPI interface supports full-
duplex serial communication (simultaneous transmit and
receive) and uses the bit sequence shown in Figure 11. Processor
platforms typically support SPI communication with general-
purpose serial ports that require some configuration in their
control registers. Table 6 provides a list of the most common
settings that require attention to initialize the serial port of a
processor for communication with the ADIS16260 and
ADIS16265.
Table 6. Generic Master Processor SPI Settings
Processor Setting Description
Master The ADIS16260 and ADIS16265 operate
as slaves
SCLK Rate ≤ 2.5 MHz Bit rate setting (SMPL_PRD[7:0] ≤ 0x07)
SPI Mode 3
Clock polarity, phase (CPOL = 1, CPHA = 1)
MSB First Mode Bit sequence
16-Bit Mode Shift register/data length
User registers govern all data collection and configuration.
Table 7 provides a memory map that includes all user registers,
along with references to the bit assignment tables that follow the
generic bit assignments in Figure 10.
UPPER BYTE
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
LOWER BYTE
08246-010
Figure 10. Generic Register Bit Definitions
R/W R/W
A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
DB0DB1DB2DB3DB4DB5DB6DB7DB8DB9DB10DB11DB12DB13DB14DB15
NOTES
1. DO UT BI TS ARE BAS E D ON THE P RE V IO US 16- BIT S E QUENCE ( R/W = 0) .
CS
SCLK
DIN
DOUT
A6 A5
DB13DB14
DB15
08246-013
Figure 11. SPI Communication Bit Sequence
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 11 of 20
SPI WRITE COMMANDS
Master processors write to the control registers, one byte
at a time, using the bit sequence shown in Figure 11. Some
configurations require writing both bytes to a register, which
takes two separate 16-bit sequences, whereas others require
only one byte. The programmable registers in Table 7 provide
controls for optimizing sensor operation and for starting vari-
ous automated functions. For example, to start an automatic
bias null sequence, set GLOB_CMD[0] = 1 by writing 0xBE01
to the SPI transmit register of the master processor, which feeds
the DIN line. The process starts immediately after the last bit
clocks into DIN (16th SCLK rising edge).
CS
DIN
SCLK
08246-011
Figure 12. SPI Sequence for Autonull (DIN = 0xBE01)
SPI READ COMMANDS
Reading data through the SPI requires two consecutive 16-bit
sequences, separated by an appropriate stall time (see Figure 2).
The first sequence transmits the read command and address on
DIN, and the second receives the resulting data from DOUT. The
7-bit register address can represent either the upper or lower byte
address for the target register. For example, when reading the
GYRO_OUT register, the address can be either 0x04 or 0x05.
Figure 13 provides a full-duplex mode example of reading the
GYRO_OUT register. In addition, the second SPI segment sets
the device up to read TEMP_OUT on the following SPI segment
(not shown in Figure 13).
SPI SEGMENT 2SPI SEGMENT 1
DIN = 0x0400 P RODUCES GYRO_OUT CO NTENT S ON
DOUT DURING THE NE X T SPI SE GMENT
DOUT
DIN
SCLK
CS
DOUT = 0x822B = 21.9047° /sec, NE W DATA, NO ALARM
08246-012
Figure 13. Example SPI Read Sequence (±320°/sec Range Setting)
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 12 of 20
MEMORY MAP
All unused memory locations are reserved for future use.
Table 7. User Register Memory Map
Name Access
Flash
Backup Address1 Default Register Description
Bit
Assignments
FLASH_CNT Read only Yes 0x00 N/A Flash memory write count
SUPPLY_OUT Read only No 0x02 N/A Output, power supply measurement See Table 9
GYRO_OUT Read only No 0x04 N/A Output, rate of rotation measurement See Table 10
0x06 to 0x09
N/A
Reserved
AUX_ADC Read only No 0x0A N/A Output, analog input channel measurement See Table 13
TEMP_OUT Read only No 0x0C N/A Output, internal temperature measurement See Table 12
ANGL_OUT Read/write No 0x0E N/A Output, angle displacement See Table 11
0x10 to 0x13 N/A Reserved
GYRO_OFF Read/write Yes 0x14 0x0000 Calibration, offset/bias adjustment See Table 16
GYRO_SCALE
Read/write
Yes
0x16
0x0800
Calibration, scale adjustment
See Table 17
0x18 to 0x1F N/A Reserved
ALM_MAG1 Read/write Yes 0x20 0x0000 Alarm 1 magnitude/polarity setting See Table 26
ALM_MAG2 Read/write Yes 0x22 0x0000 Alarm 2 magnitude/polarity setting See Table 26
ALM_SMPL1 Read/write Yes 0x24 0x0000 Alarm 1 dynamic rate of change setting See Table 27
ALM_SMPL2 Read/write Yes 0x26 0x0000 Alarm 2 dynamic rate of change setting See Table 27
ALM_CTRL Read/write Yes 0x28 0x0000 Alarm control register See Table 28
0x2A to
0x2F
N/A Reserved
AUX_DAC Read/write No 0x30 0x0000 Control, DAC output voltage setting See Table 22
GPIO_CTRL Read/write No 0x32 N/A Control, digital I/O line See Table 20
MSC_CTRL
Read/write
Yes
0x34
0x0000
Control, data ready, self-test settings
See Table 21
SMPL_PRD Read/write Yes 0x36 0x0001 Control, internal sample rate See Table 14
SENS_AVG Read/write Yes 0x38 0x0402 Control, dynamic range, filtering See Table 15
SLP_CNT Read/write Yes 0x3A 0x0000 Control, sleep mode initiation See Table 19
DIAG_STAT Read only No 0x3C N/A Diagnostic, error flags See Table 25
GLOB_CMD Write only No 0x3E N/A Control, global commands See Table 18
0x40 to 0x51 N/A Reserved
LOT_ID1 Read only Yes 0x52 N/A Lot Identification Code 1 See Table 31
LOT_ID2 Read only Yes 0x54 N/A Lot Identification Code 2 See Table 31
PROD_ID Read only Yes 0x56 0x3F89/0x3F84 Product identifier; convert to decimal =
16,265/16,260
See Table 31
SERIAL_NUM Read only Yes 0x58 N/A Serial number See Table 31
1 Each register contains two bytes. The address of the lower byte is displayed. The address of the upper byte is equal to the address of the lower byte plus 1.
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 13 of 20
PROCESSING SENSOR DATA
Table 8 provides a summary of the output data registers, which
use the bit pattern shown in Figure 14. 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 F OR 14-BIT OUTP UT
MSB F OR 12-BIT OUTP UT
ND EA
08246-021
Figure 14. Output Register Bit Assignments
Table 8. Output Data Register Formats
Register Bits Scale Reference
SUPPLY_OUT 12 1.8315 mV See Table 9
GYRO_OUT1 14 0.07326°/sec See Table 10
ANGL_OUT 14 0.03663° See Table 11
TEMP_OUT2
12
0.1453°C
See Table 12
AUX_ADC 12 610.5 µV See Table 13
1 Assumes that the scaling is set to ±320°/sec. This factor scales with the range.
2 0x0000 = 25°C (±5°C).
Table 9. SUPPLY_OUT Data Format Examples
Supply
Voltage (V) Decimal Hex Binary Output
5.25 2867 LSB 0xB33 1011 0011 0011
5.0 + 0.00183 2731 LSB 0xAAB 1010 1010 1011
5.0 2730 LSB 0xAAA 1010 1010 1010
5.0 − 0.00183 2729 LSB 0xAA9 1010 1010 1001
4.75 2594 LSB 0xA22 1010 0010 0010
Table 10. GYRO_OUT Data Format Examples
Rotation
Rate (°/sec)1 Decimal Hex Binary Output
+320 +4368 LSB 0x1110 01 0001 0001 0000
+0.07326 +1 LSB 0x0001 00 0000 0000 0001
0 0 LSB 0x0000 00 0000 0000 0000
−0.07326 −1 LSB 0x3FFF 11 1111 1111 1111
−320 −4368 LSB 0x2EF0 10 1110 1111 0000
1 For the ±320°/sec setting, rate values scale with the range setting.
Table 11. ANGL_OUT Data Format Examples
Angle1 Decimal Hex Binary Output
359.9630° 9827 LSB 0x2663 10 0110 0110 0011
359.9264° 9826 LSB 0x2662 10 0110 0110 0010
0.36630° 10 LSB 0x000A 00 0000 0000 1010
0.03663° 1 LSB 0x0001 00 0000 0000 0001
0° 0 LSB 0x0000 00 0000 0000 0000
1 359.963° + 1 LSB is equal to 0x0000.
Table 12. TEMP_OUT Data Format Examples
Temperature Decimal Hex Binary Output
+105°C +551 LSB 0x227 0010 0010 0111
+25.1453°C +1 LSB 0x001 0000 0000 0001
+25°C
0 LSB
0x000
0000 0000 0000
+24.8547°C −1 LSB 0xFFF 1111 1111 1111
−40°C −447 LSB 0xE41 1110 0100 0001
Table 13. AUX_ADC Data Format Examples
Input (mV) Decimal Hex Binary Output
2500
4095 LSB
0xFFF
1111 1111 1111
1200 1966 LSB 0x7AE 0111 1010 1110
0.6105 1 LSB 0x001 0000 0000 0001
0 0 LSB 0x000 0000 0000 0000
OPERATIONAL CONTROLS
Internal Sample Rate
The SMPL_PRD register controls the internal sample rate using the
bit assignments in Table 14. When SMPL_PRD[7:0] = 0x00, the
internal sample rate is 2048 SPS. When SMPL_PRD[7:0] ≥ 0x01,
use the bit definitions in Table 14 and the following equation to
calculate the sample rate.
1)(
11
+×
==
S
B
S
SN tt
f
Table 14. SMPL_PRD Bit Descriptions
Bits Description (Default = 0x0001)
[15:8] Not used
[7] Time base (tB): 0 = 1.953 ms, 1 = 60.54 ms
[6:0] Increment setting (NS)
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 14 of 20
Sensor Bandwidth
The gyroscope signal chain has several filter stages that shape
its frequency response. Figure 15 provides a block diagram of
each filter stage and Table 15 lists the SENS_AVG register con-
trols for bandwidth.
f
C740Hz N
RATE
Ce
FILT
N
FROM
GYRO
SENSOR
f
C
=
R = 90kΩ
CT = CINT + Ce
1
2 × R × CTN = 2m
m = SENS_AVG[2:0]
08246-014
Figure 15. Signal Processing Diagram
Table 15. SENS_AVG Bit Descriptions
Bits Description (Default = 0x0402)
[15:11]
Not used.
[10:8] Measurement range (sensitivity) selection.
100 = ±320°/sec (default condition).
010 = ±160°/sec, filter taps ≥ 4 (Bits[2:0] ≥ 0x02).
001 = ±80°/sec, filter taps ≥ 16 (Bits[2:0] ≥ 0x04).
[7] Primary pole setting (k).
1: CINT = 0.0047 µF (bandwidth = 330 Hz).
0: CINT = 0.0377 µF (bandwidth = 50 Hz).
[6:3] Not used.
[2:0] Number of taps in each stage; value of m in N = 2m.
Digital Filtering
A programmable low-pass filter provides additional opportu-
nity for noise reduction on the inertial sensor outputs. This
filter contains two cascaded averaging filters that provide a
Bartlett window, FIR filter response (see Figure 16). For example,
set SENS_AVG[2:0] = 100 (DIN = 0xB804) to set each stage to
16 taps. When used with the default sample rate of 256 SPS, this
reduces the bandwidth of the digital filter to approximately 5.2 Hz.
0
–20
–40
–60
–80
–100
–120
–140
0.001 0.01 0.1 1
MAG NITUDE ( dB)
FRE QUENCY (
f
/
f
S)
N = 2
N = 4
N = 16
N = 64
08246-015
Figure 16. Digital Filter Frequency, Bartlett Window FIR Filter
(Phase = N Samples)
Dynamic Range
The SENS_AVG[10:8] bits provide three dynamic range settings
for this gyroscope. The lower dynamic range settings (±80°/sec
and ±160°/sec) limit the minimum filter tap sizes to maintain
resolution. For example, set SENS_AVG[10:8] = 010 (DIN =
0xB902) for a measurement range of ±160°/sec. Because this
setting can influence the filter settings, program SENS_AVG[10:8]
and then SENS_AVG[2:0] if more filtering is required.
Calibration
The GYRO_OFF and GYRO_SCALE registers provide user
controls for making in-system adjustments to offset and scale
factor.
GYRO_SCALEGYRO_OFF
TO OUTPUT
REGISTERS
FRO M INT E RNAL
PROCESSING
08246-016
Figure 17. User Calibration Registers
Table 16. GYRO_OFF Bit Descriptions
Bits Description (Default = 0x0000)
[15:12] Not used.
[11:0] Offset adjustment factor, twos complement format,
0.018315°/sec per LSB.
Examples:
0x000: Add 0°/sec to gyroscope data.
0x001: Add 0.018315°/sec to gyroscope data.
0x0AA: Add 3.11355°/sec to gyroscope data.
0xF0F: Subtract 4.41392°/sec from gyroscope data.
0xFFF: Subtract 0.018315°/sec from gyroscope data.
Table 17. GYRO_SCALE Bit Descriptions
Bits Description (Default = 0x0800)
[15:12] Not used.
[11:0] Scale adjustment factor, offset binary format,
0.00048828/LSB.
Examples:
0x000: Multiply output by 0.
0x7F0: Multiply gyroscope data by 0.99218.
0x800: Multiply output by 1.
0x8A0: Multiply output by 1.077812.
0xFFF: Multiply output by 1.9995.
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 15 of 20
Global Commands
The GLOB_CMD register provides trigger bits for several
functions. Setting the assigned bit to 1 starts each operation,
which returns the bit to 0 after completion. For example, set
GLOB_CMD[7] = 1 (DIN = 0xBE80) to execute a software
reset, which stops the sensor operation and runs the device
through its start-up sequence. This sequence includes loading
the control registers with the contents of their respective flash
memory locations prior to producing new data.
Table 18. GLOB_CMD Bit Descriptions
Bits
Description
[15:8] Not used.
[7] Software reset command.
[6:4] Not used.
[3] Flash update command.
[2] Auxiliary DAC data latch.
[1] Factory calibration restore command.
[0] Autonull command.
Power Management
Setting SMPL_PRD[7:0] ≥ 0x08 also sets the sensor to low
power mode. For systems that require lower power dissipation,
in-system characterization helps users to quantify the associated
performance trade-offs. In addition to sensor performance, low
power mode affects SPI data rates (see Table 2). Use SLP_CNT[7:0]
to put the device into sleep mode for a specified period. For
example, SLP_CNT[7:0] = 0x64 (DIN = 0xBA64) puts the
ADIS16260 and ADIS16265 to sleep for 50 seconds.
Table 19. SLP_CNT Bit Descriptions
Bits Description (Default = 0x0000)
[15:8] Not used.
[7:0] Programmable sleep time bits, 0.5 sec/LSB.
INPUT/OUTPUT FUNCTIONS
General-Purpose I/O
DIO1 and DIO2 are configurable, general-purpose I/O lines
that serve multiple purposes according to the following control
register priority: MSC_CTRL, ALM_CTRL, and GPIO_CTRL.
For example, set GPIO_CTRL = 0x0202 (DIN = 0xB302, and
then 0xB202) to configure DIO1 as an input and DIO2 as an
output set high.
Table 20. GPIO_CTRL Bit Descriptions
Bits Description
[15:10] Not used.
[9] General-Purpose I/O Line 2 (DIO2) data level.
[8] General-Purpose I/O Line 1 (DIO1) data level.
[7:2] Not used.
[1] General-Purpose I/O Line 2 (DIO2) direction control.
1 = output, 0 = input.
[0] General-Purpose I/O Line 1 (DIO1) direction control.
1 = output, 0 = input.
Data Ready I/O Indicator
The MSC_CTRL[2:0] bits configure one of the digital I/O lines
as a data ready signal for driving an interrupt. For example, set
MSC_CTRL[2:0] = 100 (DIN = 0xB404) to configure DIO1 as
a negative-pulse data ready signal. The pulse width is between
100 µs and 200 µs over all conditions.
Table 21. MSC_CTRL Bit Descriptions
Bits Description (Default = 0x0000)
[15:12] Not used.
[11] Memory test (cleared upon completion).
1 = enabled, 0 = disabled.
[10]
Internal self-test enable (cleared upon completion).
1 = enabled, 0 = disabled.
[9] Manual self-test, negative stimulus.
1 = enabled, 0 = disabled.
[8] Manual self-test, positive stimulus.
1 = enabled, 0 = disabled.
[7:3]
Not used.
[2] Data ready enable.
1 = enabled, 0 = disabled.
[1] Data ready polarity.
1 = active high, 0 = active low.
[0] Data ready line select.
1 = DIO2, 0 = DIO1.
Auxiliary DAC
The 12-bit AUX_DAC line can drive its output to within 5 mV
of the ground reference when it is not sinking current. As the
output approaches 0 V, the linearity begins to degrade (~100 LSB
starting point). As the sink current increases, the nonlinear
range increases. The DAC latch command moves the values of
the AUX_DAC register into the DAC input register, enabling
both bytes to take effect at the same time.
Table 22. AUX_DAC Bit Descriptions
Bits Description (Default = 0x0000)
[15:12] Not used.
[11:0] Data bits, scale factor = 0.6105 mV/code.
Offset binary format, 0 V = 0 codes.
Table 23. Setting AUX_DAC = 2 V
DIN Description
0xB0CC AUX_DAC[7:0] = 0xCC (204 LSB).
0xB10C AUX_DAC[15:8] = 0x0C (3072 LSB).
0xBE04
GLOB_CMD[2] = 1.
Move values into the DAC input register, resulting in
a 2 V output level.
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 16 of 20
DIAGNOSTICS
Self-Test
The self-test function allows the user to verify the mechanical
integrity of each MEMS sensor. It applies an electrostatic force
to each sensor element, which results in mechanical displace-
ment that simulates a response to actual motion. Table 1 lists
the expected response for each sensor, which provides pass/fail
criteria.
Set MSC_CTRL[10] = 1 (DIN = 0xB504) to run the internal
self-test routine, which exercises the inertial sensor, measures
the response, makes a pass/fail decision, reports the decision to
error flags in the DIAG_STAT register, and then restores normal
operation. MSC_CTRL[10] resets itself to 0 after completing the
routine. The MSC_CTRL[9:8] bits provide manual control of the
self-test function for investigation of potential failures. Table 24
outlines an example test flow for using this option to verify the
gyroscope function.
Table 24. Manual Self-Test Example Sequence
DIN Description
0xB601 SMPL_PRD[7:0] = 0x01, sample rate = 256 SPS.
0xB904 SENS_AVG[15:8] = 0x04, gyro range = ±320°/sec.
0xB802 SENS_AVG[7:0] = 0x02, four-tap averaging filter.
Delay = 50 ms.
0x0400 Read GYRO_OUT.
0xB502 MSC_CTRL[9:8] = 10, gyroscope negative self-test.
Delay = 50 ms.
0x0400 Read GYRO_OUT.
Determine whether the bias in the gyroscope
output changed according to the self-test
response specified in Table 1.
0xB501 MSC_CTRL[9:8] = 01, gyroscope/accelerometer
positive self-test.
Delay = 50 ms.
0x0400 Read GYRO_OUT.
Determine whether the bias in the gyroscope
output changed according to the self-test
response specified in Table 1.
0xB500 MSC_CTRL[15:8] = 0x00.
Zero motion provides results that are more reliable. The settings
in Tabl e 24 are flexible and allow for optimization around speed
and noise influence. For example, using fewer filtering taps
decreases delay times but increases the potential for noise
influence.
Memory Test
Setting MSC_CTRL[11] = 1 (DIN = 0xB508) performs a check-
sum comparison between the flash memory and SRAM to help
verify memory integrity. The pass/fail result is loaded into the
DIAG_STAT[6] register.
Status
The error flags provide indicator functions for common
system level issues. All of the flags are cleared (set to 0) after
each DIAG_STAT register read cycle. If an error condition
remains, the error flag returns to 1 during the next sample
cycle. DIAG_STAT[1:0] does not require a read of this register
to return to 0. If the power supply voltage goes back into range,
these two flags are cleared automatically.
Table 25. DIAG_STAT Bit Descriptions
Bits Description
[15:10] Not used.
[9] Alarm 2 status (1 = active, 0 = inactive).
[8]
Alarm 1 status (1 = active, 0 = inactive).
[7] Not used.
[6] Flash test, checksum flag (1 = fail, 0 = pass).
[5] Self-test diagnostic error flag (1 = fail, 0 = pass).
[4] Sensor overrange (1 = fail, 0 = pass).
[3] SPI communication failure (1 = fail, 0 = pass).
[2] Flash update failure (1 = fail, 0 = pass).
[1] Power supply > 5.25 V.
1 = power supply > 5.25 V, 0 = power supply ≤ 5.25 V.
[0] Power supply < 4.75 V.
1 = power supply < 4.75 V, 0 = power supply ≥ 4.75 V.
Alarm Registers
The alarm function provides monitoring for two independent
conditions. The ALM_CTRL register provides control inputs
for data source, data filtering (prior to comparison), static
comparison, dynamic rate-of-change comparison, and output
indicator configurations. The ALM_MAGx registers establish
the trigger threshold and polarity configurations. Table 29 gives
an example of how to configure a static alarm. The ALM_SMPLx
registers provide the numbers of samples to use in the dynamic
rate-of-change configuration. The period equals the number in
the ALM_SMPLx register multiplied by the sample period time,
which is established by the SMPL_PRD register. See Table 30 for
an example of how to configure the sensor for this type of function.
Table 26. ALM_MAG1, ALM_MAG2 Bit Descriptions
Bits Description (Default = 0x0000)
[15]
Comparison polarity
(1 = greater than, 0 = less than).
[14] Not used.
[13:0] Data bits that match the format of the trigger source
selection.
Table 27. ALM_SMPL1, ALM_SMPL2 Bit Descriptions
Bits Description (Default = 0x0000)
[15:8] Not used.
[7:0] Data bits: number of samples (both 0x00 and 0x01 = 1).
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 17 of 20
Table 28. ALM_CTRL Bit Descriptions
Bits Description (Default = 0x0000)
[15] Rate-of-change enable for Alarm 2
(1 = rate of change, 0 = static level).
[14:12] Alarm 2 source selection.
000 = disable.
001 = power supply output.
010 = gyroscope output.
011 = not used.
100 = not used.
101 = auxiliary ADC input.
110 = temperature output.
111 = not used.
[11] Rate-of-change enable for Alarm 1
(1 = rate of change, 0 = static level).
[10:8] Alarm 1 source selection (same as for Alarm 2).
[7:5] Not used.
[4]
Comparison data filter setting
(1 = filtered data, 0 = unfiltered data).
[3] Not used.
[2] Alarm output enable
(1 = enabled, 0 = disabled).
[1] Alarm output polarity
(1 = active high, 0 = active low).
[0] Alarm output line select
(1 = DIO2, 0 = DIO1).
Table 29. Alarm Configuration Example 1
DIN Description
0xA922,
0xA817
ALM_CTRL = 0x2217.
Alarm 1 input = GYRO_OUT.
Alarm 2 input = GYRO_OUT.
Static level comparison, filtered data.
DIO2 output indicator, positive polarity.
0xA181,
0xA000
ALM_MAG1 = 0x8100.
Alarm 1 is true if GYRO_OUT > +18.755°/sec.
0xA33F,
0xA200
ALM_MAG2 = 0x3F00.
Alarm 2 is true if GYRO_OUT < −18.755°/sec.
Table 30. Alarm Configuration Example 2
DIN Description
0xA9AA,
0xA804
ALM_CTRL = 0xAA04.
Alarm 1 input = GYRO_OUT.
Alarm 2 input = GYRO_OUT.
Rate-of-change comparison, unfiltered data.
DIO1 output indicator, negative polarity.
0xB601 SMPL_PRD = 0x0001.
Sample rate = 256 SPS.
0xA40A ALM_SMPL1[7:0] = 0x000A.
Alarm 1 rate-of-change period = 3.906 ms.
0xA60A ALM_SMPL2[7:0] = 0x000A.
Alarm 2 rate-of-change period = 3.906 ms.
0xA181,
0xA000
ALM_MAG1 = 0x8100.
Alarm 1 is true if GYRO_OUT changes more than
18.755°/sec over a period of 3.906 ms.
0xA30F,
0xA200
ALM_MAG2 = 0x0F00.
Alarm 2 is true if GYRO_OUT changes less than
18.755°/sec over a period of 3.906 ms.
PRODUCT IDENTIFICATION
Table 31 provides a summary of the registers that identify
the product: PROD_ID, which identifies the product type;
LOT_ID1 and LOT_ID2, the 32-bit lot identification code;
and SERIAL_NUM, which displays the 16-bit serial number.
All four registers are two bytes in length.
Table 31. Identification Registers
Register Name Address Description
LOT_ID1 0x52 Lot Identification Code 1
LOT_ID2 0x54 Lot Identification Code 2
PROD_ID 0x56 Product identification = 0x3F89 or
0x3F84
(0x3F89 = 16,265 decimal; 0x3F84 =
16,260 decimal)
SERIAL_NUM 0x58 Serial number
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 18 of 20
APPLICATIONS INFORMATION
ASSEMBLY
When developing a process flow for installing ADIS16260 and
ADIS16265 devices on PCBs, see the JEDEC standard document
J-STD-020C for reflow temperature profile and processing
information. The ADIS16260 and ADIS16265 can use the
Sn-Pb eutectic process and the Pb-free eutectic process from
this standard. See JEDEC J-STD-033 for moisture sensitivity
(MSL) handling requirements. The MSL rating for these devices
is marked on the antistatic bags, which protect these devices
from ESD during shipping and handling. Prior to assembly,
review the process flow for information about introducing
shock levels that exceed the absolute maximum ratings for the
ADIS16260 and ADIS16265. PCB separation and ultrasonic
cleaning processes can introduce high levels of shock and
damage the MEMS element. Bowing or flexing the PCB after
solder reflow can also place large pealing stress on the pad
structure and can damage the device. If this is unavoidable,
consider using an underfill material to help distribute these
forces across the bottom of the package. Figure 18 provides a
PCB pad design example for this package style.
3.800
8×
5.0865
8×
0.773
16×
0.500
20×
1.127
20×
10.173
2× 7.600
4×
08246-006
11mm × 11mm ST ACKE D LG A P ACKAGE
Figure 18. Recommended Pad Layout (Units in Millimeters)
BIAS OPTIMIZATION
Use the following steps to fine-tune the bias to an accuracy that
approaches the in-run bias stability, 0.007°/sec (1 σ).
1. Apply 5 V and wait 10 sec.
2. Set SENS_AVG[10:8] = 001 (DIN = 0xB901).
3. Set GLOB_CMD[1] = 1 (DIN = 0xBE02).
4. Collect GYRO_OUT data for 150 sec at a sample rate of
256 SPS.
5. Average data record.
6. Round to the nearest integer.
7. Multiply by −1.
8. Write to GYRO_OFF.
9. Update flash.
Set GLOB_CMD[3] = 1 (DIN = 0xBE08).
Wait for >50 ms and resume operation.
The Allan Variance curve in Figure 6 provides a trade-off
relationship between accuracy and averaging time. For example, an
average time of 1 second produce an accuracy of ~0.035 °/sec (1 σ).
INTERFACE PRINTED CIRCUIT BOARD (PCB)
The ADIS16265/PCBZ includes one ADIS16265BCCZ IC on a
1.2 inch × 1.3 inch PCB. The ADIS16260/PCBZ includes one
ADIS16260BCCZ on a 1.2 inch × 1.3 inch PCB. The interface
PCB simplifies the IC connection of these devices to an existing
processor system. The four mounting holes accommodate either
M2 (2 mm) or 2-56 machine screws. These boards are made of
IS410 material and are 0.063 inches thick. The second-level
assembly uses a SAC305-compatible solder composition, which
has a presolder reflow thickness of approximately 0.005 inches.
The pad pattern on these PCBs matches that shown in Figure 20.
J1 and J2 are dual-row, 2 mm (pitch) connectors that work with
a number of ribbon cable systems, including 3M Part Number
152212-0100-GB (ribbon crimp connector) and 3M Part Number
3625/12 (ribbon cable). The schematic and connector pin
assignments for the ADIS16260/PCBZ and the ADIS16265/PCBZ
are shown in Figure 19.
ADIS16260/
ADIS16265
C1
7
1
4
2
3
18
19
16
17
13
12
20
6
5
14 15
RST
SCLK
CS
DOUT
DIN
GND
GND
VCC
VCC
AUX ADC
AUX DAC
VREF
DIO2
DIO1
08246-017
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
C2
RATE FILT
Figure 19. Electrical Schematic
Data Sheet ADIS16260/ADIS16265
Rev. D | Page 19 of 20
i
Sensor
U1
J1
C1
J2
1.050
2 × 0.925
2 × 0.673
2 × 0.000
0.150
0.200
0.035
2 × 0.000
0.865
2 × 0.900
1.100
4 × Ø0.087
M2 × 0.4
a
08246-018
*
PIN 1 IDENTIFIER
*
*
*
Figure 20. PCB Assembly View and Dimensions
ADIS16260/ADIS16265 Data Sheet
Rev. D | Page 20 of 20
OUTLINE DIMENSIONS
022007-B
SIDE VIEW
TOP VIEW BOTTOM VI EW
PI N 1
INDICATOR
1.000 BS C
(20×)
5.50
MAX
11.00
TYP
1
5
610
11
15
16 20
11.15
MAX
7.600
BSC
(4×)
3.800
BSC
(8×)
7.00
TYP
10.173
BSC
(2×)
0.200
MIN
(ALL SIDES)
0.900 BS C
(16×)
0.373 BS C
(20×)
Figure 21. 20-Terminal Stacked Land Grid Array [LGA]
(CC-20-1)
Dimensions shown in millimeters
ORDERING GUIDE
Model1 Temperature Range Package Description Package Option
ADIS16260BCCZ −40°C to +105°C 20-Terminal Stacked Land Grid Array [LGA] CC-20-1
ADIS16260/PCBZ Evaluation Board
ADIS16265BCCZ −40°C to +105°C 20-Terminal Stacked Land Grid Array [LGA] CC-20-1
ADIS16265/PCBZ Evaluation Board
1 Z = RoHS Compliant Part.
©2009–2011 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D08246-0-10/11(D)