[AK09940] Product brief AK09940 Ultrahigh precision 3-axis Electronic Magnetometer
1. General Description
AK09940 is ultrahigh precision 3-axis electronic magnetometer IC with ultrahigh sensitive TMR sensor
technology.
Small package of AK09940 incorporates magnetic sensors for detecting magnetic field in the X-axis,
Y-axis, and Z-axis, a sensor driving circuit, signal amplifier chain, and an arithmetic circuit for processing
the signal from each sensor. Self-test function is also incorporated.
2. Features Functions:
3-axis magnetometer device
Built-in A to D Converter for magnetometer data out
18-bit data out for each 3-axis magnetic component
Sensitivity: 10 nT/LSB (typ.)
Range: ±1200 µT (typ.)
Serial interface
I2C bus interface
Standard and Fast modes compliant with Philips I2C specification Ver.2.1
4-wire SPI
Operation mode
Power-down, Single measurement, Continuous measurement and Self-test
DRDY function for measurement data ready
Magnetic sensor overflow monitor function
Built-in oscillator for internal clock source
Power on Reset circuit
…
