Description:The ISL29112 is a low cost, light-to-voltage silicon optical sensor combining a photodiode array, a non-linear current amplifier, and a micropower op amp on a single monolithic IC. Similar to the human eye, the photodiode array has peak sensitivity at 550nm and spans the wavelength range of 400nm to 600nm, rejecting UV and IR light. The input luminance range is from 0.01 lux to 100 lux. The integrated non-linear current amplifier boosts and converts the photodiode signal into a square root output format, ex
A good PCB layout for the ISL29112IROZ-T7A involves keeping the sensor and ADC pins away from high-frequency signals, using a solid ground plane, and minimizing trace lengths and widths to reduce noise and parasitic capacitance. Renesas provides a recommended PCB layout in the application note AN1449.
Calibration involves adjusting the gain and offset of the sensor to match the specific application's requirements. Renesas provides a calibration procedure in the application note AN1449, which involves measuring the sensor's output at different light levels and adjusting the gain and offset accordingly.
The ISL29112IROZ-T7A is rated for operation from -40°C to 85°C, but the accuracy of the lux readings may degrade at extreme temperatures. For optimal performance, it's recommended to operate the device within the 0°C to 70°C range.
Yes, the ISL29112IROZ-T7A is compatible with 3.3V microcontrollers. The device's VDD pin can be connected to a 3.3V supply, and the I2C interface is 3.3V tolerant. However, ensure that the microcontroller's I2C bus is configured for 3.3V operation.
The ISL29112IROZ-T7A has a built-in POR and BOR feature that resets the device during power-up or brown-out conditions. To handle these features, ensure that the microcontroller's reset pin is connected to the ISL29112IROZ-T7A's POR/BOR pin, and that the microcontroller's firmware is designed to handle the reset signal.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
ISL29112IROZ-T7A Overview
Use the download button to access the ISL29112IROZ-T7A schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like ISL29,
or try a keyword search, such as Other Sensors/Transducers
