Relying on an auto zero-drift feature that eliminates errors from external magnetic sources, the IST8303 single-chip, three-axis digital magnetometer sensor promises to lower costs for smart phones, tablets, gaming devices, digital compasses, GPS navigation, and augmented-reality applications. The sensor resides in a 12-pin, 1.6 mm x 1.6 mm x 1 mm BGA package integrating three-axis magnetic sensors with an ASIC controller. It outputs 14/16-bit data over a wide magnetic field range (±1600 µT) in a fast-mode 400-kHz I2C digital output. Operating voltage is 1.8V and standby current is less than 10 µA. Pricing starts at $1.66 each. A datasheet is available at http://www.saelig.com/supplier/isentek/ist8303_Product_brief_datasheet.pdf
Three-Dimension Magnetometer Sensor Dodges Magnetic Interference
Saelig Co. Inc.