ICM-20789 7-Axis, High Performance Integrated 6-Axis Inertial and Barometric Pressure Sensor GENERAL DESCRIPTION APPLICATIONS The 7-Axis ICM-20789 is an integrated 6-axis inertial device Drones and Flying Toys that combines a 3-axis gyroscope, 3-axis accelerometer, and Motion-based gaming controllers an ultra-low noise MEMS capacitive pressure sensor in a 24- Virtual Reality headsets and controllers pin LGA package. This unique 7-Axis device offers Indoor/Outdoor Navigation (dead-reckoning, performance of discrete components in a single small floor/elevator/step detection) footprint for tracking rotational and linear motion as well as FEATURES pressure differences with an accuracy of 1 Pa, an accuracy enabling altitude measurement differentials as small as Pressure operating range: 30 to 110 kPa 8.5 cm. Noise and current consumption o 3.2 Pa 1.3 A (LP mode) The pressure sensors MEMS capacitive architecture provides o 0.8 Pa 5.2 A (LN mode) the industrys lowest noise at the lowest power, high sensor o 0.4 Pa 10.4 A (ULN mode) throughput, and temperature coefficient offset of 0.5 Pa/C. Pressure Sensor Relative Accuracy: 1 Pa for any The pressure sensors combination of high accuracy elevation measurements, low power, and temperature stability 10 hPa change over 950 hPa-1050 hPa at 25C complemented by the motion tracking 6-axis inertial sensor in Pressure Sensor Absolute Accuracy: 1 hPa over a small footprint, make it ideal for a wide range of motion 950 hPa-1050 hPa, 0C to 65C tracking applications. Pressure Sensor Temperature Coefficient Offset: 0.5 Pa/C over 25C to 45C at 100 kPa The embedded 6-axis MotionTracking device combines a 3- Gyroscope programmable FSR of 250 dps, axis gyroscope, 3-axis accelerometer, and a Digital Motion 500 dps, 1000 dps, and 2000 dps Processor (DMP). An available large 4 kB FIFO reduces Accelerometer with Programmable FSR of 2g, 4g, traffic on the serial bus interface, and power consumption 8g, and 16g through burst sensor data transmission. The Gyroscope has Large 4 kB FIFO reduces traffic on the serial bus programmable FSR of 250 dps, 500 dps, 1000 dps and interface 2000 dps. The Accelerometer FSR is programmable to 2g, EIS FSYNC support 4g, 8g and 16g User-programmable interrupts ICM-20789 has 16-bit ADC for the 6-axis inertial sensor and Wake-on-motion interrupt for low power operation 24-bit ADC for the pressure Sensor, programmable digital of applications processor filters, two temperature sensors one each in 6-axis Inertial 2 Host interface: 400 kHz Fast Mode I C & 8 MHz SPI and Pressure sensor. The device features an operating (see datasheet for ICM-20689) 2 voltage of 1.8V. Communication port includes I C at 400 kHz Digital-output temperature sensor (x2) (6-axis and Pressure) and 8 MHz SPI (6-axis only). The package Nominal VDD operation at 1.8V is 4x4x1.365 mm 24-pin to minimize board area RoHS and Green compliant requirements. ORDERING INFORMATION BLOCK DIAGRAM PART TEMP RANGE PACKAGE ICM-20789 40C to +85C 24-Pin LGA AP/HUB Denotes RoHS and Green-Compliant Package 2 2 I C SPI (6-Axis only) I C 2 I C 6-Axis Pressure Motion Sensor ICM-20789 TDK Corporation InvenSense reserves the right to change the detail Document Number: DS-000169 1745 Technology Drive, San Jose, CA 95110 U.S.A specifications as may be required to permit Revision: 1.3 +1(408) 9887339 improvements in the design of its products. Revision Date: 10/31/2017 www.invensense.com ICM-20789 TABLE OF CONTENTS General Description ............................................................................................................................................. 1 Block Diagram ...................................................................................................................................................... 1 Applications ......................................................................................................................................................... 1 Features ............................................................................................................................................................... 1 Ordering Information ........................................................................................................................................... 1 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 Pressure sensor Features .......................................................................................................................... 8 2.4 Additional Features ................................................................................................................................... 8 2.5 Motion Processing .................................................................................................................................... 8 3 Electrical Characteristics ...................................................................................................................................... 9 3.1 Gyroscope Specifications .......................................................................................................................... 9 3.2 Accelerometer Specifications .................................................................................................................. 10 3.3 Pressure Sensor Specifications ................................................................................................................ 11 3.4 Electrical Specifications ........................................................................................................................... 12 2 3.5 I C Timing Characterization ..................................................................................................................... 14 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 .............................................................................................. 21 4.4 Block Diagram ......................................................................................................................................... 22 4.5 Overview ................................................................................................................................................. 23 4.6 Three-Axis MEMS Gyroscope with 16-bit ADCs and Signal Conditioning ............................................... 24 4.7 Three-Axis MEMS Accelerometer with 16-bit ADCs and Signal Conditioning ......................................... 24 4.8 Digital Motion Processor ......................................................................................................................... 24 4.9 Pressure Sensor ....................................................................................................................................... 24 2 4.10 I C Serial Communications Interface .................................................................................................. 24 4.11 Self-Test .............................................................................................................................................. 25 4.12 Clocking ............................................................................................................................................... 26 4.13 Sensor Data Registers ......................................................................................................................... 26 4.14 FIFO ..................................................................................................................................................... 26 4.15 Interrupts ............................................................................................................................................ 26 4.16 Digital-Output Temperature Sensor ................................................................................................... 26 Document Number: DS-000169 Page 2 of 62 Revision: 1.3