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TSL237 Light to Frequency Converter
| Jameco Part no. 2151451 | |
|---|---|
| Manufacturer | TAOS INC. USA |
| Manufacturer no. | 604-00085 |
| RoHS compliant | |
| web exclusive | |
- Data Sheet (current) [154 KB ]
TSL237 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. 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 device 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.
Features:
- Communicates directly with a microcontroller
- Single-supply operation
- Compact 3-lead clear plastic package
- High-resolution conversion of light intensity to frequency with no external components
Suggested Applications:
- Camera exposure
- Dimming displays
- Machine vision
Key Specifications:
- Nonlinearity Error (Typically 0.2% at 100 kHz)
- Stable 150ppm/° C Temperature Coefficient
- Supply Voltage 2.7 - 5.5 VDC
- Operating Temperature range -25 - 70 C
- Typical current draw 2 mA
- Output Frequency 200 - 300 kHz
Downloads & Resources:
- TSL237R Datasheet (.pdf)
Getting Started Guide (.pdf)
Uses for LTF Devices (.pdf)
Link to TSL230 Arduino Setup
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