ANALOG DEVICES ADIS16210 Service Manual

Precision Triaxial Inclinometer and

FEATURES

Triaxial, digital inclinometer system

±180° measurement range, roll and pitch axes
±90° gravity axis
±0.1° relative accuracy

Triaxial, digital accelerometer, high accuracy

±1.7 g measurement range

±0.05° axis-to-axis alignment
Digital internal temperature measurements
Digital internal power supply measurements
Programmable user calibration options

Single command, frame alignment

Manual accelerometer bias correction
Programmable operation and control

Sample rate/filtering

Alarm conditions and indicator output

Input/output: data ready, alarm, general-purpose
Power management functions
SPI-compatible serial interface
Serial number and device ID
Single-supply operation: 3.0 V to 3.6 V
Calibrated temperature range: −40°C to +85°C
15 mm × 24 mm × 15 mm package with flexible connector

Accelerometer with SPI

ADIS16210

GENERAL DESCRIPTION

The ADIS16210 iSensor® is a digital inclinometer system that
provides precise measurements for both pitch and roll angles
over a full orientation range of ±180°. It combines a MEMS tri­axial acceleration sensor with signal processing, addressable user
registers for data collection/programming, and a SPI-compatible
serial interface. In addition, the production process includes unit
specific calibration for optimal accuracy performance. It also
offers digital temperature sensor and power supply measurements
together with configuration controls for in-system calibration,
sample rate, filtering, alarms, I/O configuration, and power
management.

The MEMS sensor elements are bound to an aluminum core for
tight platform coupling and excellent mechanical stability. An
internal clock drives the data sampling system, which eliminates
the need for an external clock source. The SPI and data buffer
structure provide convenient access to accurate sensor data and
configuration controls.

The ADIS16210 is available in a 15 mm × 24 mm × 15 mm module
that provides mounting tabs with M2-sized mounting holes and a
flexible, edge terminated connector interface. It has an extended
operating temperature range of −40°C to +125°C.

APPLICATIONS

Platform control, stabilization, and alignment
Tilt sensing, inclinometers, and leveling
Motion/position measurement
Monitor/alarm devices (security, medical, safety)
Navigation

FUNCTIONAL BLOCK DIAGRAM

ADIS16210

TRIAXIAL

MEMS

SENSOR

TEMPERATURE

SENSOR

SUPPLY

DIGITAL

FILTER

Rev. A

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responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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.
Trademarks and registered trademarks are the property of their respective owners.

CORRECTION

AND

ALIGNMENT

DIO1 DIO2 RST

CONTROLLER

INCLINE

CALIBRATION

Figure 1.

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Tel: [phone] www.analog.com
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ALARMSI/OSELF TEST

MANAGEMENT

CONTROL

REGISTERS

OUTPUT

REGISTERS

VDD

POWER

SPI

PORT

GND

CS
SCLK

DIN
DOUT

09593-001

ADIS16210

TABLE OF CONTENTS

Features.............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Timing Specifications .................................................................. 4

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Basic Operation................................................................................. 7

Reading Sensor Data.................................................................... 7

Device Configuration .................................................................. 7

User Register Map ............................................................................ 8

Sensor Data........................................................................................ 9

Output Data Registers.................................................................. 9

Signal Processing, Bias Correction, and Alignment.................. 12

System Tools.................................................................................... 14

Global Commands ..................................................................... 14

Input/Output Functions............................................................ 14

Device Identification.................................................................. 15

Status/Error Flags....................................................................... 15

Flash Memory Management..................................................... 15

Alarms.............................................................................................. 16

System Alarm.............................................................................. 16

Static Alarms............................................................................... 16

Dynamic Alarms ........................................................................ 16

Alarm Reporting ........................................................................ 16

Applications Information.............................................................. 17

Interface Board ........................................................................... 17

Mating Connector...................................................................... 17

Outline Dimensions....................................................................... 18

Ordering Guide .......................................................................... 18

REVISION HISTORY

6/11—Rev. 0 to Rev. A

Changes to Table 1............................................................................ 3

Changes to Table 23........................................................................ 12

Changes to Figure 24 and Figure 25............................................. 17

4/11—Revision 0: Initial Version

Rev. A | Page 2 of 20

ADIS16210

SPECIFICATIONS

TA = −40°C to +85°C, VDD = 3.0 V to 3.6 V, unless otherwise noted.

Table 1.

Parameter Test Conditions/Comments Min Typ Max Unit

INCLINOMETERS

Measurement Range −180 +180 Degrees

Relative Accuracy ±30°, AVG_CNT ≥ 0x0009, μ ± 3 σ ±0.1 Degrees

±60°, AVG_CNT ≥ 0x0009, μ ± 1 σ ±0.1 Degrees

±60°, AVG_CNT ≥ 0x0009, μ ± 3 σ ±0.15 Degrees

±180°, AVG_CNT ≥ 0x0009, μ ± 1 σ ±0.14 Degrees

±180°, AVG_CNT ≥ 0x0009, μ ± 3 σ ±0.21 Degrees

Noise Density TA = 25°C, AVG_CNT = 0x0000 ±0.011 °/√Hz

ACCELEROMETERS

Measurement Range ±1.7

Offset Error μ ± 1 σ ±1 mg

Sensitivity Error μ ± 1 σ ±0.0244

Nonlinearity ±1 g, μ ± 1 σ

Misalignment Axis to axis, deviation from 90°, μ ± 1 σ

Noise Density TA = 25°C, AVG_CNT = 0x0000

±1
±0.05
190

±2 mg
Degrees

μg/√Hz
Bandwidth −3 dB decrease in dc sensitivity, TA = 25°C 50 Hz
Sensor Resonant Frequency TA = 25°C 5.5 kHz

LOGIC INPUTS1

Input High Voltage, V
Input Low Voltage, V
Logic 1 Input Current, I
Logic 0 Input Current, I

All Except RST
RST

2.0 V

INH

0.8 V

INL

VIH = 3.3 V ±0.2 ±1 μA

INH

VIL = 0 V

INL

−40 −60 μA

−1 mA

Input Capacitance, CIN 10 pF

DIGITAL OUTPUTS1

Output High Voltage, VOH I
Output Low Voltage, VOL I

= 1.6 mA 2.4 V

SOURCE

= 1.6 mA 0.4 V

SINK

FLASH MEMORY

Endurance2 10,000 Cycles
Data Retention3 TJ = 85°C 20 Ye ar s

START-UP TIME4

Initial Startup 156 ms
Reset Recovery5

Sleep Mode Recovery

RST pulse low or Register GLOB_CMD[7] = 1
After CS assertion from high to low

33.8 ms

22.3 ms

CONVERSION RATE Register AVG_CNT = 0x0000 512 SPS

Clock Accuracy 3 %

POWER SUPPLY Operating voltage range, VDD 3.0 3.3 3.6 V

Power Supply Current Normal mode, TA = 25°C 18 mA

Sleep mode, TA = 25°C 230 μA

1

The digital I/O signals are 5 V tolerant.

2

Endurance is qualified as per JEDEC Standard 22, Method A117, and measured at −40°C, +25°C, +85°C, and +125°C.

3

Retention lifetime equivalent at junction temperature (TJ) = 85°C as per JEDEC Standard 22, Method A117. Retention lifetime decreases with junction temperature. See

Figure 22.

4

The start-up times presented do not include the data capture time, which is dependent on the AVG_CNT register settings.

5

RST

The

pin must be held low for at least 15 ns.

g

%

Rev. A | Page 3 of 20

ADIS16210

TIMING SPECIFICATIONS

TA = 25°C, VDD = 3.3 V, unless otherwise noted.

Table 2.

Parameter Description Min1 Typ Max Uni t

f

SCLK frequency 10 830 kHz

SCLK

t

Stall period between data, between 16th and 17th SCLK 40 μs

STALL

t

Chip select to SCLK edge 48.8 ns

CS

t

DOUT valid after SCLK edge 100 ns

DAV

t

DIN setup time before SCLK rising edge 24.4 ns

DSU

t

DIN hold time after SCLK rising edge 48.8 ns

DHD

tSR SCLK rise time 12.5 ns
tSF SCLK fall time 12.5 ns
tDF, t

DOUT rise/fall times, not shown in Timing Diagrams section. 5 12.5 ns

DR

t

SFS

1

Guaranteed by design, not tested.

high after SCLK edge

CS

Timing Diagrams

CS

t

CS

SCLK

t

SR

123456 1516

t

DAV

t

SF

5 ns

t

SFS

DOUT

DIN

MSB DB14

t

R/W A5A6 A4 A3 A2

DB13 DB12 DB10DB11 DB2 LSBDB1

t

DSU

DHD

D2

D1 LSB

09593-002

Figure 2. SPI Timing and Sequence

t

STALL

CS

SCLK

09593-003

Figure 3. DIN Bit Sequence

Rev. A | Page 4 of 20

ADIS16210

ABSOLUTE MAXIMUM RATINGS

Table 3.

Parameter Rating

Acceleration

Any Axis, Unpowered 3500 g
Any Axis, Powered 3500 g

VDD to GND −0.3 V to +6.0 V
Digital Input Voltage to GND −0.3 V to +5.3 V
Digital Output Voltage to GND −0.3 V to VDD + 0.3 V
Analog Inputs to GND −0.3 V to +3.6 V
Operating Temperature Range −40°C to +125°C
Storage Temperature Range −65°C to +150°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.

Table 4. Package Characteristics

Package Type θJA θ

15-Lead Module 31°C/W 11°C/W 7.2 grams

Device Weight

JC

ESD CAUTION

Rev. A | Page 5 of 20

ADIS16210

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

PIN 1

PIN 15

PIN 15

PIN 1

NOTES

1. LEADS ARE EXPOSED COPPER PADS LOCATED ON THE BOTTOM SIDE OF
THE FLEX IBLE INTE RF ACE CABLE.

2. PACKAGE IS NOT SUITABLE FOR SOLDER REFL OW ASSEMBL Y PROCESSES .

TOP VIEW

Figure 4. Pin Configuration

3. EXAMPLE M ATING CONNECTOR: AVX CORPORATION
FLAT FLEXIBLE CONNECTOR (FFC)
P/N: 04-6288-015- 00 0- 846.

Table 5. Pin Function Descriptions

Pin No. Mnemonic Type1 Description

1, 2 VDD S Power Supply, 3.3 V.
3, 4, 5, 8 GND S Ground.
6, 9 DNC I Do Not Connect. Do not connect to these pins.
7 DIO2 I/O Digital Input/Output Line 2.
10

RST

I Reset, Active Low.

11 DIN I SPI, Data Input.
12 DOUT O

SPI, Data Output. DOUT is an output when CS

three-state, high impedance mode.
13 SCLK I SPI, Serial Clock.
14

CS

I SPI, Chip Select.

15 DIO1 I/O Digital Input/Output Line 1.

1

S is supply, O is output, I is input, and I/O is input/output.

BOTTOM VI EW

09593-004

is low. When CS is high, DOUT is in a

Rev. A | Page 6 of 20