The Honeywell HMC5883L is a surface-mount, multi-chip module designed forlow-field magnetic sensing with a digital interface for applications such as lowcost compassing and magnetometry. The HMC5883L includes our state-of-theart, high-resolution HMC118X series magneto-resistive sensors plus an ASICcontaining amplification, automatic degaussing strap drivers, offset cancellation,and a 12-bit ADC that enables 1° to 2° compass heading accuracy. The I2Cserial bus allows for easy interface. The HMC5883L is a 3.0x3.0x0.9mm surfacemount 16-pin leadless chip carrier (LCC). Applications for the HMC5883Linclude Mobile Phones, Netbooks, Consumer Electronics, Auto NavigationSystems, and Personal Navigation Devices.The HMC5883L utilizes Honeywell’s Anisotropic Magnetoresistive (AMR) technology that provides advantages over othermagnetic sensor technologies. These anisotropic, directional sensors feature precision in-axis sensitivity and linearity.These sensors’ solid-state construction with very low cross-axis sensitivity is designed to measure both the direction andthe magnitude of Earth’s magnetic fields, from milli-gauss to 8 gauss. Honeywell’s Magnetic Sensors are among the mostsensitive and reliable low-field sensors in the industry.