FSYNC
RESV
RESV
INT
Signal Conditioning
IAM-20680
High Performance 6-Axis MotionTracking Device
GENERAL DESCRIPTION APPLICATIONS
The IAM-20680 is a 6-axis MotionTracking device for Navigation Systems Aids for Dead Reckoning
Automotive applications that combines a 3-axis Lift Gate Motion Detections
gyroscope and a 3-axis accelerometer in a small Accurate Location for Vehicle to Vehicle and
3x3x0.75mm (16-pin LGA) package. It also features a 512- Infrastructure
byte FIFO that can lower the traffic on the serial bus 360 View Camera Stabilization
interface and reduce power consumption by allowing the Car Alarm
system processor to burst read sensor data and then go Telematics
into a low-power mode. IAM-20680, with its 6-axis Insurance Vehicle Tracking
integration, enables manufacturers to eliminate the
ORDERING INFORMATION
costly and complex selection, qualification, and system
level integration of discrete devices, guaranteeing
PART AXES TEMP RANGE PACKAGE MSL*
optimal motion performance.
IAM-20680 X,Y,Z -40C to +85C 16-Pin LGA 3
The gyroscope has a programmable full-scale range of Denotes RoHS and Green-compliant package
* Moisture sensitivity level of the package
250 dps, 500 dps, 1000 dps, and 2000 dps. The
accelerometer has a user-programmable accelerometer
FEATURES
full-scale range of 2g, 4g, 8g, and 16g. Factory-
Digital-output X-, Y-, and Z-axis angular rate
calibrated initial sensitivity of both sensors reduces
production-line calibration requirements. sensors (gyroscopes) with a user-programmable
full-scale range of 250 dps, 500 dps,
Other industry-leading features include on-chip 16-bit
1000 dps, and 2000 dps and integrated 16-bit
ADCs, programmable digital filters, an embedded
ADCs
temperature sensor, and programmable interrupts. The
Digital-output X-, Y-, and Z-axis accelerometer
2
device features I C and SPI serial interfaces, a VDD
with a programmable full scale range of 2g,
operating range of 1.71V to 3.6V, and a separate digital
4g, 8g, and 16g and integrated 16-bit ADCs
IO supply, VDDIO from 1.71V to 3.6V.
User-programmable digital filters for gyroscope,
accelerometer, and temperature sensor
BLOCK DIAGRAM
Self-test
IAM-20680
Wake-on-motion interrupt for low power
INT
operation of applications processor
Self
X Accel
ADC
test Interrupt
Status
Reliability testing performed according to
Register
NCS
Self
Y Accel ADC
Slave I2C and
SDO AECQ100
test
SPI Serial
FIFO
SCLK
Interface
SDI o PPAP and qualification data available
Self
Z Accel
ADC
test User & Config
Registers
FSYNC upon request
Self
X Gyro ADC
test
Sensor
Registers
TYPICAL OPERATING CIRCUIT
Self
Y Gyro ADC
test
Self
Z Gyro ADC
1.8 3.3VDC
test
VDD
C2, 0.1 F C4, 2.2 F
REGOUT
Temp Sensor ADC
16 15 14
C1, 0.47 F
Bias & LDOs
Charge
GND
Pump VDDIO
1.8 3.3 VDC 1 13
VDD GND REGOUT RESV
C3, 10 nF
SCL/SPC
SCL 2 12
SDA/SDI
RESV
IAM-20680
SDA 3 11
SA0/SDO RESV
AD0
4
10
VDDIO
CS
RESV
5 9
6 7 8
InvenSense Inc. Document Number: DS-000196
InvenSense reserves the right to change the detail
1745 Technology Drive, San Jose, CA 95110 U.S.A Revision: 1.0
specifications as may be required to permit
+1(408) 9887339 Rev. Date: 12/21/2016
improvements in the design of its products.
www.invensense.com
IAM-20680
TABLE OF CONTENTS
General Description ............................................................................................................................................. 1
Block Diagram ...................................................................................................................................................... 1
Applications ......................................................................................................................................................... 1
Ordering Information ........................................................................................................................................... 1
Features ............................................................................................................................................................... 1
Typical Operating Circuit ...................................................................................................................................... 1
TABLE OF CONTENTS....................................................................................................................................................... 2
LIST OF FIGURES .............................................................................................................................................................. 5
LIST OF TABLES ................................................................................................................................................................ 6
1 Introduction ......................................................................................................................................................... 7
1.1 Purpose and Scope .................................................................................................................................... 7
1.2 Product Overview...................................................................................................................................... 7
1.3 Applications ............................................................................................................................................... 7
2 Features ............................................................................................................................................................... 8
2.1 Gyroscope Features .................................................................................................................................. 8
2.2 Accelerometer Features ............................................................................................................................ 8
2.3 Additional Features ................................................................................................................................... 8
3 Electrical Characteristics ...................................................................................................................................... 9
3.1 Gyroscope Specifications .......................................................................................................................... 9
3.2 Accelerometer Specifications .................................................................................................................. 10
3.3 Electrical Specifications ........................................................................................................................... 11
2
3.4 I C Timing Characterization ..................................................................................................................... 14
3.5 SPI Timing Characterization .................................................................................................................... 15
3.6 Absolute Maximum Ratings .................................................................................................................... 16
4 Applications Information ................................................................................................................................... 17
4.1 Pin Out Diagram and Signal Description ................................................................................................. 17
4.2 Typical Operating Circuit ......................................................................................................................... 18
4.3 Bill of Materials for External Components .............................................................................................. 18
4.4 Block Diagram ......................................................................................................................................... 19
4.5 Overview ................................................................................................................................................. 19
4.6 Three-Axis MEMS Gyroscope with 16-bit ADCs and Signal Conditioning ............................................... 20
4.7 Three-Axis MEMS Accelerometer with 16-bit ADCs and Signal Conditioning ......................................... 20
2
4.8 I C and SPI Serial Communications Interfaces ........................................................................................ 20
4.9 Self-Test................................................................................................................................................... 21
4.10 Clocking ............................................................................................................................................... 21
4.11 Sensor Data Registers ......................................................................................................................... 21
4.12 FIFO ..................................................................................................................................................... 22
4.13 Interrupts ............................................................................................................................................ 22
Document Number: DS-000196 Page 2 of 51
Revision: 1.0