The TSL1401R-LF is a high-sensitivity, single-chip linear sensor array from Texas Advanced Optoelectronic Solutions (TAOS), now AMS-TAOS. It consists of 128 photodiodes, each integrated with a transimpedance amplifier, providing a direct voltage output proportional to the light intensity incident on each photodiode. This device is designed for high-resolution optical sensing applications.

Applications

• Barcode scanners
• Optical character recognition (OCR)
• Edge detection
• Position and size measurement
• Spectroscopy
• Web inspection
• Object profiling and sorting

Features

• 128 photodiodes with integrated transimpedance amplifiers
• High sensitivity and dynamic range
• Direct voltage output proportional to light intensity
• Low dark output voltage
• Single 5V power supply
• Compact package

Benefits

• High-resolution optical sensing: Provides detailed spatial information about the light source.
• Simple interface: Direct voltage output simplifies integration with microcontrollers and other processing circuits.
• Low noise: Provides accurate and reliable measurements even in low-light conditions.
• Compact design: Small package size allows for integration into space-constrained applications.
• Cost-effective solution: Integrates multiple photodiodes and amplifiers into a single chip.

Additional Details

The TSL1401R-LF requires an external clock signal to shift data out of the array. The output voltage range is typically 0V to 5V, proportional to the light intensity. Key specifications include sensitivity, dark output voltage, and clock frequency. Consult the datasheet for detailed timing diagrams, electrical characteristics, and application notes to ensure proper implementation. Proper shielding and filtering may be required to minimize noise and ensure accurate measurements.