TSL238T converter equivalent, high-sensitivity light-to-frequency converter.
measurement of the actual dark frequency may be impractical due to measurement times ranging from several seconds to se.
The TSL238T 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 intensi.
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