Light-to-Frequency Converter - The TSL235 Light-to-Frequency Converter combines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave (50% duty cycle) with frequency directly proportional to light intensity. Because it is TTL compatible, the output allows direct interface to a microcontroller or other logic circuitry. the TSL235R is characterized for operation over the temperature range of -25 degrees C to 70 degrees C.
High-Sensitivity Light-to-Frequency Converter - The TSL238D, TSL238T light-to--frequency converters combine a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave (50% duty cycle) with frequency directly proportional to light intensity. Because it is TTL compatible, the output allows direct interface to a microcontroller or other logic circuitry. Both devices have been temperature compensated for the ultraviolet-to-visible range of 320 nm to 700 nm and respond over the light range of 320 nm to 1050 nm. The TSL238D is characterized for operation over the temperature range of -25 degrees C to 70 degrees C. The TSL238T is characterized for operation over the temperature of -40 degrees C to 85 degrees C.
Light-to-Frequency Converter - The TSL235 Light-to-Frequency Converter combines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave (50% duty cycle) with frequency directly proportional to light intensity. Because it is TTL compatible, the output allows direct interface to a microcontroller or other logic circuitry. the TSL235R is characterized for operation over the temperature range of -25 degrees C to 70 degrees C.
Programmable Light-to-Frequency Converters - The TSL230R-LF, TSL230AR-LF and TSL230BR-LF programmable light-to-frequency converters combine a configurable silicon photodiode and a current-to-frequency converter on single monolithic CMOS integrated circuits. All inputs and the output are TTL compatible, allowing direct two-way communication with a microcontroller for programming and output interface. An output enable (OE) is provided that places the output in the high-impedance state for multiple-unit sharing of a microcontroller input line. .
Programmable Light-to-Frequency Converters - The TSL230R-LF, TSL230AR-LF and TSL230BR-LF programmable light-to-frequency converters combine a configurable silicon photodiode and a current-to-frequency converter on single monolithic CMOS integrated circuits. All inputs and the output are TTL compatible, allowing direct two-way communication with a microcontroller for programming and output interface. An output enable (OE) is provided that places the output in the high-impedance state for multiple-unit sharing of a microcontroller input line. .
