Description
The TSL257T is a high-sensitivity low-noise light-to-voltage optical converter that combines a photodiode and a transimpedance amplifier on a single monolithic CMOS integrated circuit. Output voltage is directly proportional to light intensity (irradiance) on the photodiode. The TSL257T has a transimpedance gain of 320 MΩ. The device has improved offset voltage stability and low power consumption and is supplied in a compact 4-lead surface-mount package.

 Converts Light Intensity to Output Voltage
● Monolithic Silicon IC Containing Photodiode, Operational Amplifier, and Feedback Components
● High Sensitivity
● Single Voltage Supply Operation (2.7 V to 5.5 V)
● High Irradiance Responsivity . . . Typical 680 mV/(μW/cm2) at λp = 640 nm
● Low Noise (200 μVrms Typ to 1 kHz)
● Rail-to-Rail Output
● High Power-Supply Rejection (35 dB at 1 kHz)
● Low-Profile Surface-Mount Package
● RoHS Compliant