IST8310
IST8310 Datasheet, Version 1.2 1
IST8310
3D Magnetometer
Datasheet
IST8310
IST8310 Datasheet, Version 1.2 2
Table of Contents
1 GENERAL DESCRIPTION ................................................................................... 4
2 BLOCK DIAGRAM, PACKAGE DIMENSION AND APPLICATION CIRCUIT ... 5
2.1 Block diagram ............................................................................................................ 5
2.2 Package Dimensions and Pin Description....................................................................... 5
2.3 Application Circuit ...................................................................................................... 7
3 OPERATIONAL MODES AND FUNCTIONAL DESCRIPTIONS ......................... 8
3.1 Operation modes ......................................................................................................... 8
3.1.1 Stand-By Mode ........................................................................................................ 8
3.1.2 Single Measurement Mode ........................................................................................ 8
3.1.3 Self-Test Mode ........................................................................................................ 8
3.2 Interrupt Function ....................................................................................................... 9
3.3 DRDY Function .......................................................................................................... 9
3.4 IST8310 Read Process ................................................................................................. 9
4 ELECTRICAL SPECIFICATIONS ...................................................................... 10
4.1 Extreme Rating ......................................................................................................... 10
4.2 Recommended Operating Conditions .......................................................................... 10
4.3 Electrical Specifications............................................................................................. 10
4.4 Magnetic Sensor Specifications .................................................................................. 11
4.5 Power On Reset (POR) Specifications ......................................................................... 12
5 TECHNOLOGY OVERVIEW .............................................................................. 13
5.1 AMR Technology ...................................................................................................... 13
5.2 High Reliability Planarized Design ............................................................................. 13
5.3 Ultra-low Hysteresis Design ....................................................................................... 13
5.4 Magnetic Setting Mechanism ..................................................................................... 13
6 DIGITAL INTERFACE AND REGISTERS .......................................................... 14
IST8310
IST8310 Datasheet, Version 1.2 3
6.1 I
2
C Interface ............................................................................................................. 14
6.2 I
2
C Read Operation ................................................................................................... 14
6.3 I
2
C Write Operation ................................................................................................... 15
6.4 Registers .................................................................................................................. 15
7 ORDERING INFORMATION ............................................................................. 21
IST8310
IST8310 Datasheet, Version 1.2 4
1 General Description
iSentek IST8310 is a 3-axis digital magnetometer with 3.0x3.0x1.0mm
3
, 16-pin LGA package. It is an
integrated chip with 3-axis magnetic sensors, digital control logic, built-in temperature compensation
circuit and self-test function. IST8310 provides an I
2
C digital output with fast mode up to 400kHz.
The high output data rate, ultra-low hysteresis, excellent temperature drift and low noise performance
feathers make it a perfect candidate for high accuracy applications.
Features
Single chip 3-axis magnetic sensor
3.0x3.0x1.0mm
3
, 16-pin LGA package
I
2
C slave, Fast Mode up to 400kHz
14 bits data output
Wide dynamic range of ±1600uT (x, y-axis) and ±2500uT (z-axis)
High output data rate of maximum 200Hz
Ultra-low hysteresis (<0.1%FS)
Ultra-low sensitivity temperature drift (±0.016 %/
o
K)
Ultra-low offset temperature drift (0.024uT/
o
K)
Wide operating temperature range
High precision temperature compensation
Built-in self-test function
Software and algorithm support available (For tilt compensation, cross-axis compensation and
noise suppression)
Applications
Quadcopter/Drone Applications
Augmented Reality Applications
Virtual Reality Applications
Location Based Services
Navigation Applications
Industrial Applications
Magnetometry
IOT devices
Heading
Gaming
IST8310
IST8310 Datasheet, Version 1.2 5
2 Block Diagram, Package Dimension and Application Circuit
2.1 Block diagram
Figure 1. Block Diagram
2.2 Package Dimensions and Pin Description
Unit: mm
Tolerance: ±0.1mm
MUX
Low
Noise
AMP
ADC
SDA
DRDY
SCL
Set/Reset
Controller
Clock
Generator
Trimming
Logic
3-Axis
AMR
Sensing
Elements
Regulator
AVDD VSS
RSTN
C1
OTP
VPP
Digital
Control
Logic
CAD0 CAD1
DVDD
Temperature
Compensation
Circuit
3.0
3.0
0.625
0.5
IST8310 LGA Top View (Looking Through)
0.25
0.625
0.325
0.5
