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TSL237 Datasheet - TAOS

TSL237-TAOS.pdf

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Datasheet Details

Part number:

TSL237

Manufacturer:

TAOS

File Size:

553.67 KB

Description:

High-sensitivity light-to-frequency converter.

TSL237, HIGH-SENSITIVITY 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.

Output is a square wave (50% duty cycle) with frequency directly proportional to light intensity (irradiance) on the photodiode.

The digital outp

Technical coantmesntAsGtill valid r r D High-Resolution Conversion of Light Intensity to Frequency With No External Components D High Irradiance Responsivity .

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2.3 kHz/(mW/cm2) at λp = 524 nm D Low Dark Frequency .

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< 2 Hz at 505 C D Single-Supply Operation .

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2.7 V to 5.5 V D Stable 200 ppm/°C Temperature Coefficient D Interfaces Directly to a Microcontroller D RoHS Compliant ( LF Package Only) TSL237 HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER TAOS052J SEPTEMBER

TSL237 Features

* ement, pulse-accumulation, or integration techniques. Frequency measurements provide the added benefit of averaging out random- or high-frequency variations (jitter) resulting from noise in the light signal. Resolution is limited mainly by available counter registers and allowable measurement time.

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