3D Magnetic Sensors



1.29 x 0.99 x 0.53 mm3 WLCSP.  
3-axis vertical hall sensor,  I²C interface. 
Dynamic Range: ± 30 mT.  
Resolution: 2.5 uT/LSB 
ODR: 500 Hz.  8~16-bit adjustable output.
360º absolute output, calculated on the chip.
Programmable switch function.



iSentek IST8309 is a 3D digital linear hall sensor to measure magnetic flux intensity. It is an integrated chip with magnetic sensors and control ASIC with 16-bit ADC output. IST8309 provides an I2C digital output with fast mode plus up to 400 kHz. Wide dynamic range operation, high resolution and compact form factor features make it the best candidate for smartphone, wearable and IoT devices.


Single chip 3-axis linear hall sensor with digital output
3-axis programmable magnetic switch function
INTB pin for event notification (Magnetic switch, DRDY, Overflow)
Compact form factor, 1.29 x 0.99 x 0.53 mm3 , 5-pin WLCSP-BGA package 
I2C bus supports fast mode plus up to 400 kHz
Two slave addresses
High dynamic range of maximum ± 30 mT
High resolution of maximum 2.5 uT/LSB 
Absolute 360 degree angle output
High output data rate of maximum 500 Hz
8~16-bit adjustable data output / Operation Temperature -40~85oC/ Built-in oscillator for internal clock source/ Power-on Reset circuit

Block Diagram


Magnetometer for external magnet detection

Displacement detection

Foldable device angle detection

Angle sensor application