MLX90255AB - Melexis

MLX90255AB Optical array

The sensor consists of 128 photodiodes arranged in a linear array. Light energy falling on a photodiode generates photocurrent, which is integrated by the active integration circuitry associated with that pixel. During the integration period, a sampling capacitor connects to the output of the integrator through an analog switch. The amount of charge accumula.

Features

• 128 x 1 Sensor-Element Organization (1 Not Connected, 1 dummy, 128 real, 1 dummy and 1 Dark Pixel)
• 385 Dots-Per-Inch (DPI) Sensor Pitch
• High Linearity and Uniformity for 256 Gray-Scale (8-Bit) Applications
• Optimization: less Gain in order to get better Signal To Noise behavior: up to 13 bits
• Output becomes high impedance after CLK 132
• Extremely low integration times possible: up to 10 µs! (independent of clock speed)
• Output Referenced to Ground
• Low Image Lag ... 0.5% Typ
• Single 5-V Supply
• Replacement of Texas Instruments TSL1301 & TSL1401
• Operation to 1MHz The MLX90255 li.