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ADIS16136 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADIS16136
Beschreibung Precision Angular Rate Sensor
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 20 Seiten
ADIS16136 Datasheet, Funktion
Data Sheet
±450°/Sec Precision Angular Rate Sensor
ADIS16136
FEATURES
Digital gyroscope system, ±450°/sec measurement range
In-run bias stability, 4°/hour
Autonomous operation and data collection
No external configuration commands required
Start-up time: 180 ms; sleep mode recovery: 2.5 ms
Factory calibrated sensitivity and bias
Calibration temperature range: −40°C to +70°C
SPI-compatible serial interface
Wide bandwidth: 380 Hz
Embedded temperature sensor
Programmable operation and control
Automatic and manual bias correction controls
Digital filters: Bartlett FIR, average/decimation
Internal sample rate: up to 2048 SPS
Digital I/O: data ready, alarm indicator, general-purpose
Alarms for condition monitoring
Sleep mode for power management
Enable external sample clock input: up to 2048 Hz
Single-supply operation: 4.75 V to 5.25 V
2000 g shock survivability
Operating temperature range: −40°C to +85°C
APPLICATIONS
Precision instrumentation
Platform stabilization and control
Industrial vehicle navigation
Downhole instrumentation
Robotics
GENERAL DESCRIPTION
The ADIS16136 iSensor® is a high performance, digital gyro-
scope sensing system that operates autonomously and requires
no user configuration to produce accurate rate sensing data. It
provides performance advantages with its low noise density,
wide bandwidth, and excellent in-run bias stability, which enable
applications such as platform control, navigation, robotics, and
medical instrumentation.
This sensor system combines industry leading iMEMS® technology
with signal conditioning that optimizes dynamic performance.
The factory calibration characterizes the entire sensor signal chain
for sensitivity and bias over a temperature range of −40°C to +70°C.
As a result, each ADIS16136 has its own unique correction for-
mulas to produce accurate measurements upon installation. For
some systems, the factory calibration eliminates the need for
system level calibration and greatly simplifies it for others.
The ADIS16136 provides data at rates of up to 2048 SPS and
offers an averaging/decimation filter structure for optimizing
noise/bandwidth trade-offs. The serial peripheral interface (SPI)
and user register structure provide easy access to configuration
controls and calibrated sensor data for embedded processor
platforms.
The 36 mm × 44 mm × 14 mm package provides four holes for
simple mechanical attachment, using M2 (or 2-56 standard size)
machine screws along with a standard 24-pin, dual row, 1 mm
pitch connector that supports electrical attachment to a printed
circuit board (PCB) or cable system.
FUNCTIONAL BLOCK DIAGRAM
DIO1 DIO2 DIO3 DIO4/CLKIN RST
VDD
SELF-TEST
I/O
ALARMS
POWER
MANAGEMENT
GND
MEMS
SENSOR
TEMP
SENSOR
CLOCK
ADIS16136
CONTROLLER
CALIBRATION
FILTER
USER
CONTROL
REGISTERS
OUTPUT
DATA
REGISTERS
SPI
PORT
CS
SCLK
DIN
DOUT
Figure 1.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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
©2011 Analog Devices, Inc. All rights reserved.






ADIS16136 Datasheet, Funktion
ADIS16136
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADIS16136
TOP VIEW
24 22 20 18 16 14 12 10 8 6 4 2
23 21 19 17 15 13 11 9 7 5 3 1
NOTES
1. PINS ARE NOT VISIBLE FROM THIS VIEW. THE PIN ASSIGNMENTS
SHOWN REPRESENT THE MATING CONNECTOR ASSIGNMENTS.
2. USE SAMTEC CLM-112-02 OR EQUIVALENT.
Figure 5. Mating Connector Pin Assignments
RATE
AXIS
+
POSITIVE
ROTATION
DIRECTION
Data Sheet
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Type1
1
DIO3
I/O
2
DIO4/CLKIN
I
3
SCLK
I
4
DOUT
O
5 DIN I
6 CS
I
7
DIO1
I/O
8 RST I
9
DIO2
I/O
10, 11, 12
VDD
S
13, 14, 15
GND
S
16 to 24
DNC
N/A
Figure 6. Axial Orientation (Bottom Side Facing Up)
Description
Configurable Digital Input/Output.
Configurable Digital Input/Output/Clock Input (SMPL_PRD = 0x0000).
SPI Serial Clock.
SPI Data Output. Clocks output on SCLK falling edge.
SPI Data Input. Clocks input on SCLK rising edge.
SPI Chip Select.
Configurable Digital Input/Output.
Reset.
Configurable Digital Input/Output.
Power Supply.
Power Ground.
Do Not Connect. Do not connect to these pins.
1 I/O is input/output, I is input, O is output, S is supply, N/A is not applicable.
Rev. A | Page 6 of 20

6 Page









ADIS16136 pdf, datenblatt
ADIS16136
AVERAGING/DECIMATION FILTER
The DEC_RATE register (see Table 18) provides user control
for the final filter stage (see Figure 18), which averages and
decimates the output data. For systems that value lower sample
rates, this filter stage provides an opportunity to lower the sample
rate while maintaining optimal bias stability performance. The
−3 dB bandwidth of this filter stage is approximately one half
the output data rate. For example, set DEC_RATE[7:0] = 0x04
(DIN = 0xA204) to reduce the sample rate by a factor of 16.
Data Sheet
When the factory default 1024 SPS sample rate is used, this
decimation setting reduces the output data rate to 64 SPS and
the sensor bandwidth to approximately 32 Hz.
Table 18. DEC_RATE Bit Descriptions
Bits Description (Default = 0x0000)
[15:5] Don’t care
[4:0] Binary; D variable in Figure 18; maximum = 10000 (16)
MEMS
GYRO
410Hz
1595Hz
÷ND
–3dB BANDWIDTH = 380Hz
fS =
32,768
SP + 1
SP ≥ 15
SP = SMPL_PRD
CLOCK
fS
CLKIN
B = AVG_CNT[2:0]
NB = 2B
NT = 2NB – 1
NT = TOTAL NUMBER OF TAPS
D = DEC_RATE[4:0]
ND = 2D
ND = NUMBER OF TAPS
ND = DATA RATE DIVISOR
Figure 18. Sampling and Frequency Response Block Diagram
Rev. A | Page 12 of 20

12 Page





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