TSL237 - TAOS

TSL237 HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER

The TSL237 light-to-frequency converter combines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. Output is a square wave (50% duty cycle) with frequency directly proportional to light intensity (irradiance) on the photodiode. The digital output allows direct interface to a microcontroller or other log.

Features

evice has been temperature compensated for the ultraviolet-to-visible light range of 320 nm to 700 nm and responds over the light range of 320 nm to 1050 nm. The TSL237 is characterized for operation over the temperature range of −40°C to 85°C and is supplied in a 3-lead clear plastic side-looker package with an integral lens. When supplied in the lead (Pb) free package, the device is RoHS compliant. For automotive and other extended temperature applications, please contact TAOS for information. Functional Block Diagram Light Photodiode Current-to-Frequency Converter Output Available Opti.