Sensor IC enables short-range human presence detection
The SX9300 capacitive proximity sensor with on-chip Specific Absorption Rate (SAR) engine for human body detection is claimed to be the only device of its kind with true discrimination between a human body and inert material. This unique feature enables mobile and tablet PC manufacturers to comply with SAR regulation for optimized data & voice communication quality of service.
The device offers a dual-channel design with built-in human body discrimination on two distinct sets of sensors. This configuration is optimized for multiple axis proximity detection with very tiny sensor areas. Features include an operating voltage range from 2.7 to 5.5 V, and a current consumption of 18 µA in doze mode, 170 µA in active mode, and 2.5 µA in sleep mode. It is supported by a 400-kHz I2C interface and dedicated interrupt pin. Housing is in 3 x 3-mm thin 20-QFN package and operating temperature is from –40° to 85°C. ($0.56 ea/10,000 — available now)
By Christina Nickolas
Semtech , Camarillo , CA
Sales 805-498-2111
Advertisement
Learn more about Semtech
