SI1133-AA00-GMR Sensors, Transducers

The SI1133-AA00-GMR is a multi-functional, low-power optical sensor module, capable of measuring ambient light, IR and UV radiation for sensing environment and biological conditions in a wide variety of applications. The SI1133-AA00-GMR is designed to optimize both power consumption and overall performance for different applications such as mobile, consumer electronics, and industrial. It is suitable for use in automotive, medical, and home automation. The SI1133-AA00-GMR module consists of a chip, lens, and a shielding cover which are placed on a submount and then sealed to form a small package.

Optical Sensors - Ambient Light, IR, UV Sensors

The SI1133-AA00-GMR module integrates an integrated ambient light sensing (ALS) photodiode, an infrared (IR) photodiode, and a UV sensing (UV) photodiode. These photodiodes operate with a direct absorption, determining the amount of radiation present in the ambient environment or in a directed beam. The ALS photodiode provides real-time sensing of the ambient light used to control LCD brightness and other intelligent features used in mobile and consumer devices. The IR and UV sensing photodiodes primarily detect UV radiation for skin protection purposes, or can be used to sense biological activities in medical applications.

The photodiodes are built on a silicon substrate, and packaged in a shielded module for added protection and to provide a uniform response over a wide range of incident angles. All of these photodiodes can be converted into digital values using an integrated 10-bit ADC, allowing for accurate and reliable measurements with a wide dynamic range. Additionally, the onboard signal processing includes filters for ambient light, infrared, and UV radiation. This feature reduces the number of components needed to build an application and also helps reject noise for precise measurements.

The SI1133-AA00-GMR has a low power consumption and is designed to optimize the power usage of the application. The module is capable of operating in two different power modes, a low-power mode, and a high-power mode, depending on the application requirements. In low-power mode, the current draw is as low as 7mA, and an active power consumption of 18mW, while its maximum is up to 10mA and 60mW in high-power mode. The SI1133-AA00-GMR is powered by a single 3.3V power supply.

In conclusion, the SI1133-AA00-GMR is a low-power optical sensor module designed for a wide range of applications. It integrates a multifunctional photodiode array, consisting of ALS, IR, and UV sensors that can measure ambient light, IR, or UV radiation present in both the environment and directed objectives. The integrated signal processing algorithms reduce noise and provide accurate results for precise measurements, while the low-power design ensures an optimal power consumption to reduce overall power consumption.