IAM-20380
High Performance Gyroscope
InvenSense reserves the right to change the detail
specifications as may be required to permit
improvements in the design of its products.
InvenSense Inc.
1745 Technology Drive, San Jose, CA 95110 U.S.A
+1(408) 988–7339
www.invensense.com
Document Number: DS-000195
Revision: 1.0
Rev. Date: 12/21/2016
GENERAL DESCRIPTION
The IAM-20380 is a 3-axis gyroscope in a small
3x3x0.75mm (16-pin LGA) package. It also features a 512-
byte FIFO that can lower the traffic on the serial bus
interface and reduce power consumption by allowing the
system processor to burst read sensor data and then go
into a low-power mode. IAM-20380, with its 3-axis
integration, enables manufacturers to eliminate the
costly and complex selection, qualification, and system
level integration of discrete devices, guaranteeing
optimal motion performance.
The gyroscope has a programmable full-scale range of
±250 dps, ±500 dps, ±1000 dps, and ±2000 dps. Factory-
calibrated initial sensitivity reduces production-line
calibration requirements.
Other industry-leading features include on-chip 16-bit
ADCs, programmable digital filters, an embedded
temperature sensor, and programmable interrupts. The
device features I
2
C and SPI serial interfaces, a VDD
operating range of 1.71V to 3.6V, and a separate digital
IO supply, VDDIO from 1.71V to 3.6V.
BLOCK DIAGRAM
IAM-
20380
Charge
Pump
NCS
SDO
SCLK
SDI
Temp Sensor
ADC
ADC
Z Gyro
ADC
Y Gyro
FSYNC
Slave I2C and
SPI Serial
Interface
Interrupt
Status
Register
VDD
Bias & LDOs
GND REGOUT
ADC
X Gyro
Signal Conditioning
FIFO
User &
Config
Registers
Sensor
Registers
Self
test
Self
test
Self
test
INT
APPLICATIONS
• Navigation Systems Aids for Dead Reckoning
• Lift Gate Motion Detections
• Accurate Location for Vehicle to Vehicle and
Infrastructure
• 360º View Camera Stabilization
• Car Alarm
• Telematics
• Insurance Vehicle Tracking
ORDERING INFORMATION
PART
AXES
TEMP RANGE
MSL*
IAM-20380
†
X,Y,Z
-40°C to +85°C
3
†Denotes RoHS and Green-compliant package
* Moisture sensitivity level of the package
FEATURES
• Digital-output X-, Y-, and Z-axis angular rate
sensors (gyroscopes) with a user-programmable
full-scale range of ±250 dps, ±500 dps,
±1000 dps, and ±2000 dps and integrated 16-bit
ADCs
• User-programmable digital filters for gyroscope
and temperature sensor
• Self-test
• Reliability testing performed according to
AEC–Q100
o PPAP and qualification data available
upon request
TYPICAL OPERATING CIRCUIT
6 7 8
9
1
4
16 15 14
IAM-20380
2
3
12
11
10
13
5
VDDIO
SA0/SDO
SCL/SPC
CS
SDA/SDI
C3, 10 nF
SCL
VDDIO
SDA
AD0
1.8 – 3.3 VDC
VDD
1.8 – 3.3VDC
C2, 0.1 µF
REGOUT
GND
RESV
RESV
C1, 0.47 µF
RESV
RESV
INT
FSYNC
RESV
RESV
C4, 2.2 µF
IAM-20380
Document Number: DS-000195 Page 2 of 46
Revision: 1.0
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 Additional Features ................................................................................................................................... 8
3 Electrical Characteristics ...................................................................................................................................... 9
3.1 Gyroscope Specifications .......................................................................................................................... 9
3.2 Electrical Specifications ........................................................................................................................... 10
3.3 I
2
C Timing Characterization ..................................................................................................................... 13
3.4 SPI Timing Characterization .................................................................................................................... 14
3.5 Absolute Maximum Ratings .................................................................................................................... 15
4 Applications Information ................................................................................................................................... 16
4.1 Pin Out Diagram and Signal Description ................................................................................................. 16
4.2 Typical Operating Circuit ......................................................................................................................... 17
4.3 Bill of Materials for External Components .............................................................................................. 17
4.4 Block Diagram ......................................................................................................................................... 18
4.5 Overview ................................................................................................................................................. 18
4.6 Three-Axis MEMS Gyroscope with 16-bit ADCs and Signal Conditioning ............................................... 19
4.7 I
2
C and SPI Serial Communications Interfaces ........................................................................................ 19
4.8 Self-Test................................................................................................................................................... 20
4.9 Clocking ................................................................................................................................................... 20
4.10 Sensor Data Registers ......................................................................................................................... 20
4.11 FIFO ..................................................................................................................................................... 21
4.12 Interrupts ............................................................................................................................................ 21
4.13 Digital-Output Temperature Sensor ................................................................................................... 21
4.14 Bias and LDOs ..................................................................................................................................... 21
4.15 Charge Pump ...................................................................................................................................... 21