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PDF ADIS16260 Data sheet ( Hoja de datos )
| Número de pieza | ADIS16260 | |
| Descripción | Programmable Low Power Gyroscope | |
| Fabricantes | Analog Devices | |
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Preliminary Technical Data
Programmable Low Power Gyroscope
ADIS16260/ADIS16265
FEATURES
Yaw rate gyroscope with range scaling
±80°/sec, ±160°/sec, and ±320°/sec settings
SPI®-compatible serial interface
Calibrated sensitivity and bias
ADIS16260: +25°C
ADIS16265: −40°C to +85°C
Operating temperature range: −40°C to +105°C
Digital temperature sensor output
In-system, auto-zero for bias drift calibration
Digitally controlled sample rate, up to 2048SPS
Digitally controlled frequency response
50/300Hz Sensor bandwidth selection
Programmable Bartlett Window FIR filter
Dual alarm settings with configurable operation
Embedded integration for short-term angle estimates
Digitally activated self-test
Digitally activated low power mode
Interrupt-driven wake-up
Auxiliary 12-bit ADC input and 12-bit DAC output
Auxiliary digital input/output
Single-supply operation: 4.75 V to 5.25 V
2000 g powered shock survivability
APPLICATIONS
Instrumentation control
Platform control and stabilization
Motion control and analysis
Avionics instrumentation
Navigation
Image stabilization
Robotics
FUNCTIONAL BLOCK DIAGRAM
AUX AUX
ADC DAC VREF
RATE
FILT
VCC
COM
TEMPERATURE
SENSOR
GYROSCOPE
SENSOR
SELF-TEST
ADIS16260/
ADIS16265
SIGNAL
CONDITIONING
AND
CONVERSION
CALIBRATION
AND
DIGITAL
PROCESSING
DIGITAL
CONTROL
SPI
PORT
POWER
MANAGEMENT
ALARM
AUXILIARY
I/O
RST
Figure 1.
DIO0 DIO1
CS
SCLK
DIN
DOUT
GENERAL DESCRIPTION
The ADIS16260/ADIS16265 are complete angular rate meas-
urement systems available in a single compact package enabled
by Analog Devices, Inc. iSensor™ integration. By enhancing
Analog Devices iMEMS® sensor technology with an embedded
signal processing solution, the ADIS16260/ADIS16265 provide
factory-calibrated and tunable digital sensor data in a convenient
format that can be accessed using a simple SPI serial interface.
The ADIS16265 additionally provides an extended temperature
calibration. The SPI interface provides access to measurements
for the gyroscope, temperature, power supply, and one auxiliary
analog input. Easy access to calibrated digital sensor data
provides developers with a system-ready device, reducing
development time, cost, and program risk.
The device range can be digitally selected from three different
settings: ±80°/sec, ±160°/sec, and ±320°/sec. Unique charac-
teristics of the end system are accommodated easily through
several built-in features, including a single-command auto-zero
recalibration function, as well as configurable sample rate and
frequency response. Additional features can be used to further
reduce system complexity, including:
Configurable alarm function
Auxiliary 12-bit ADC and DAC
Two configurable digital I/O ports
Digital self-test function
Digital sensor bandwidth selection
System power dissipation can be optimized via the ADIS16260/
ADIS16265 power management features, including an interrupt-
driven wake-up. The ADIS16260/ADIS16265 are available in an
11 mm × 11 mm × 5.5 mm, laminate-based land grid array
(LGA) package with a temperature range of −40°C to +105°C.
Rev. PrB
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2006–2008 Analog Devices, Inc. All rights reserved.
Free Datasheet http://www.datasheet4u.com/
1 page  
Preliminary Technical Data
ADIS16260/ADIS16265
TIMING SPECIFICATIONS
TA = −40°C to +85°C, VCC = 5.0 V, unless otherwise noted.
Table 2.
Parameter
fSCLK
tDATARATE
tSTALL
tCS
tDAV
tDSU
tDHD
tDF
tDR
tSFS
Description
Fast mode, SMPL_PRD ≤ 0x07 (fS ≥ 64 Hz)
Normal mode, SMPL_PRD ≥ 0x08 (fS ≤ 56.9 Hz)
Data rate period, fast mode, SMPL_PRD ≤ 0x07 (fS ≥ 64 Hz)
Data rate period, normal mode, SMPL_PRD ≥ 0x08 (fS ≤ 56.9 Hz)
Stall period, fast mode, SMPL_PRD ≤ 0x07 (fS ≥ 64 Hz)
Stall period, normal mode, SMPL_PRD ≥ 0x08 (fS ≤ 56.9 Hz)
Chip select to clock edge
Data output valid after SCLK falling edge2
Data input setup time before SCLK rising edge
Data input hold time after SCLK rising edge
Data output fall time
Data output rise time
CS high after SCLK edge3
Flash update time (power supply must be within range)
Min1
0.01
0.01
32
42
9
12
48.8
24.4
48.8
5
50
Typ
Max1
Unit
2.5 MHz
1.0 MHz
μs
μs
μs
μs
ns
100 ns
ns
ns
5 12.5 ns
5 12.5 ns
ns
ms
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.
tDATARATE
CS
SCLK
tDATASTALL
Figure 2. SPI Chip Select Timing
CS
SCLK
DOUT
DIN
tCS
1
* MSB
W/R
23 4 56
tDAV
DB14
tDSU
DB13
DB12
tDHD
DB11
DB10
A5 A4 A3 A2
15 16
tSFS
DB2
DB1
LSB
D2 D1 LSB
*NOT DEFINED
Figure 3. SPI Timing (Using SPI Settings Typically Identified as Phase = 1, Polarity = 1)
Rev. PrB | Page 5 of 19
Free Datasheet http://www.datasheet4u.com/
5 Page 
Preliminary Technical Data
ADIS16260/ADIS16265
DATA OUTPUT REGISTER ACCESS
The ADIS16260/ADIS16265 provide access to calibrated
rotation measurements, relative angle estimates, power supply
measurements, temperature measurements, and an auxiliary
12-bit ADC channel. This output data is continuously updating
internally, regardless of user read rates. The following bit map
describes the structure of all output data registers, except
ENDURANCE, in the ADIS16260/ADIS16265.
Table 5. Register Bit Map
MSB
ND EA
D7 D6
D13 D12 D11 D10 D9
D5 D4 D3 D2 D1
LSB
D8
D0
The MSB holds the new data (ND) indicator. When the output
registers are updated with new data, the ND bit goes to a 1 state.
After the output data is read, it returns to a 0 state. The EA bit is
used to indicate a system error or an alarm condition that can
result from a number of conditions, such as a power supply that
is out of the specified operating range. See the Status and
Diagnostics section for more details. The output data is either
12 bits or 14 bits in length. For all of the 12-bit output data,
Bit D13 and Bit D12 are assigned don’t care status.
The output data register map is located in Table 6 and provides
all of the necessary details for accessing each register’s data.
Table 7 displays the output coding for the GYRO_OUT register.
Figure 11 provides an example SPI read cycle for this register.
Table 6. Data Output Register Information
Name
Function
ENDURANCE Flash Memory Write Counter
SUPPLY_OUT Power Supply Data
GYRO_OUT
Gyroscope Data
AUX_ADC
Auxiliary Analog Input Data
TEMP_OUT
Sensor Temperature Data
ANGL_OUT
Angle Output
Address
0x01, 0x00
0x03, 0x02
0x05, 0x04
0x0B, 0x0A
0x0D, 0x0C
0x0F, 0x0E
Resolution (Bits)
16
12
14
12
12
14
Data Format
Binary
Binary
Twos Complement
Binary
Twos Complement
Binary
Scale Factor (per LSB)
1 count
1.8315 mV
0.07326°/sec1
0.6105 mV
0.1453°C
0.03663°
1 Assumes that the scaling is set to 320°/sec.
Table 7. Output Coding Example, GYRO_OUT1, 2
Rate of Rotation
±320°/sec Range
±160°/sec Range
600°/sec
300°/sec
320°/sec
160°/sec
80°/sec
40°/sec
40°/sec
20°/sec
0.07326°/sec
0.03663°/sec
0°/sec
0°/sec
−0.07326°/sec
−0.03663°/sec
−40°/sec
−20°/sec
−80°/sec
−40°/sec
−320°/sec
−160°/sec
−600°/sec
−300°/sec
±80°/sec Range
150°/sec
80°/sec
20°/sec
10°/sec
0.018315°/sec
0°/sec
−0.018315°/sec
−10°/sec
−20°/sec
−80°/sec
−150°/sec
Binary Output
01 1111 1111 1111
01 0001 0001 0000
00 0100 0100 0100
00 0010 0010 0010
00 0000 0000 0001
00 0000 0000 0000
11 1111 1111 1111
11 1101 1101 1110
11 1011 1011 1100
10 1110 1111 0000
10 0000 0000 0000
Hex Output
0x1FFF
0x1110
0x0444
0x0222
0x0001
0x0000
0x3FFF
0x3DDE
0x3BBC
0x2EF0
0x2000
Decimal
8191
4368
1092
546
1
0
−1
−546
−1092
−4368
−8192
1 Two MSBs have been masked off and are not considered in the coding.
2 Nominal sensitivity and zero offset null performance are assumed.
CS
SCLK
DIN
W/R BIT = 0
ADDRESS = 000101
DOUT
DATA = 1011 1101 1101 1110
NEW DATA, NO ALARM, GYRO_OUT = –40°/SECOND
Figure 11. Example Read Cycle, ±320°/sec Setting
Rev. PrB | Page 11 of 19
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet ADIS16260.PDF ] | |
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