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TSL238T
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  • TSL238T
ID: 180253

Light-to-Frequency converter, TAOS, SMD, RoHS

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TSL238T
Light-to-Frequency converter, TAOS, SMD, RoHS


The TSL238T 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 TSL238 has been temperature compensated for the ultraviolet-to-visible range of 320 nm to 700 nm and responds over the light range of 320 nm to 1050 nm. The device is characterized for operation over the temperature range of -40 degrees C to 85 degrees C and is supplied in a TMB (compact 4-lead surface mount) package. The device is RoHS compliant.

Features:

  • High-Resolution Conversion of Light Intensity to Frequency With No External Components
  • Communicates Directly With a Microcontroller
  • High Irradiance Responsivity (3.4 kHz/(uW/cm2) at 640 nm)
  • Low Dark Frequency (Single-Supply Operation (2.7V to 5.5V)
  • Stable 200 ppm/°C Temperature Coefficient
  • RoHS Compliant

180253

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