High-Sensitivity Light-to-Voltage Converter - The TSL257 is a high-sensitivity, low-noise light-to-voltage optical converter that combines a photodiode and a transimpedance amplifier on a single monolithic CMOS integrated circuit. The output voltage is directly proportional to light intensity (irradiance) on the photodiode. The TSL257 has a transimpedance gain of 320 Megohm. The device has improved offset voltage stability and low-power consumption and is supplied in a 3-lead clear plastic sidelooker package with an integral lens. The TSL257T is supplied in a compact 4-lead surface mount package.
Light-to-Voltage Converters - The TSL12S, TSL13S and TSL14S are cost-optimized, highly integrated light-to-voltage optical sensors, each combining a photodiode and a transimpedance amplifier (feedback resistor = 80 MOhms, 20 MOhms and 5 MOhms, respectively) on a single monolithic integrated circuit. The photodiode active area is 0.5 mm x 0.5 mm and the sensors respond to light in the range of 320 nm to 1050 nm. Output voltage is linear with light intensity (irradiance) incident on the sensor over a wide dynamic range.
Light-to-Voltage Optical Sensors - The TSL250R, TSL251R and TSL252R are light-to-voltage optical sensors, each combining a photodiode and a transimpedance amplifier (feedback resistor = 16 Megohm, 8 Megohm and 2.8 Megohm, respectively) on a single monolithic IC. Output voltage is directly proportional to the light intensity (irradiance) on the photodiode. These devices have improved amplifier offset-voltage stability and low power consumption and are supplied in a 3-lead clear plastic sidelooker package with an integral lens.
Infrared Light-to-Voltage Optical Sensors - The TSL260R, TSL261R and TSL262R are infrared light-to-voltage optical sensors, each combining a photodiode and a transimpedance amplifier (feedback resistor = 16 MOhms, 8 MOhms and 2.8 MOhms, respectively) on a single monolithic IC. Output voltage is directly proportional to the light intensity (irradiance) on the photodiode. These devices have improved amplifier offset-voltage stability and low power consumption and are supplied in a 3-lead plastic sidelooker package with an integral visible light cutoff filter and lens.
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.
Light-to-Voltage Optical Sensor - The TSL254R is a precision CMOS Light-to-Voltage sensor that combines a photodiode and a transimpedance amplifier on a single monolithic IC. The feedback resistor is 1 Megohm. The output voltage is directly proportional to the light intensity(irradiance) on the photodiode. At 635nm, the irradiance responsivity is 9mV/(uW/cm2) with an output rise and fall time of 2usec.
