SI1151 Overview
Si115x Data Sheet Proximity/Ambient Light Sensor IC with I2C Interface The Si115x-AB00/AB09/AB9x is an ambient light sensor, proximity, and gesture detector with I2C digital interface and programmable-event interrupt output. This touchless sensor IC includes dual 23-bit analog-to-digital converters, an integrated high-sensitivity array of visible and infrared photodiodes, a digital signal processor, and up to three...
SI1151 Key Features
- Proximity detector
- From under 1 cm, to 50 cm without additional lensing
- From under 1 cm, to 200 cm with additional lensing (e.g., 5 mm hemispherical lens as in our EVB)
- Up to three independent LED drivers
- 30 current settings from 5.6 mA to 360 mA for each LED driver
- Operates in direct sunlight with optional on-die 940 nm passband filter
- On die 940 bandpass filter that rejects unwanted visible light and IR from daylight and other sources (Si115xAB09/AB9X)
- Ambient light sensor
- <100 mlx resolution possible, allowing operation under dark glass
- Up to 128 klx dynamic range possible across two ADC range settings