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MLX90255BC
Linear Optical Array
Description
Applications
Documents
FAQ
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Download MLX90255BC Datasheet (PDF)
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MLX90255BC General Description
The MLX90255BC linear sensor array consists of a 128 x 1 array of photodiodes, associated charge amplifier circuitry and a pixel data-hold function that provides simultaneous-integration start and stop times for all pixels. The pixels measure 200µm (H) by 66 µm (W). Operation is simplified by internal control logic that requires only a serial-input (SI) signal and a clock. 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 accumulated at each pixel is directly proportional to the light intensity and the integration time. The output and reset of the integrators is controlled by a 132-bit shift register and reset logic. An output cycle is initiated by clocking in a logic 1 on SI. This causes all 132 sampling capacitors to be disconnected from their respective integrators and starts an integrator reset period.
MLX90255BC Features and Benefits
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
High Sensitivity: 1.7V @ 10µW/cm² @ 0.7ms integration time
Special Gain Compensation for use with single LED light source
Output Referenced to Ground
Low Image Lag
Single 5V Supply
Replacement for TAOS (TI) TSL1301 & TSL1401 and MLX90255BA
Operation to 800kHz
MLX90255BC Related Products
Part Number
Description
EVB90255
Evaluation Board for the MLX90255
MLX90255BA
Linear Optical Array
MLX90255BC Applications
Electric Power Assisted Steering
Electronic Stabilty Program (ESP)
Steering Angle Measurement
Steering Torque Measurement
Application Note
File Type
Size
Revision
Date
Action
Positioning with Optical Linear Arrays
PDF
99.7 KB
v1.0
11/20/2007
Spectroscopy with optical linear arrays
PDF
948.1 KB
12/5/2005
MLX90255BC Documentation
DataSheet
File Type
Size
Revision
Date
Action
EVB90255 Datasheet
PDF
125.4 KB
1.0
MLX90255BC DataSheet
PDF
578.8 KB
2.3
4/29/2008
How It Works
File Type
Size
Revision
Date
Action
Virtual optical linear arraydemo
SWF
101.4 KB
1.0.1
4/3/2006
What is an optical sensor?
SWF
17.8 KB
12/13/2004
Product flyers
File Type
Size
Revision
Date
Action
Flyer MLX90255
PDF
466.8 KB
05-2011
7/13/2011
Steering Applications Flyer
PDF
762.1 KB
001
12/19/2006
MLX90255BC Tools
MLX90255BC Environmental Information
This text will be replaced
MLX90255BC In The Press
MLX90255BC Frequently asked Questions
mlx90255 max speed
Answer
the sensor did not change, if you used to buy the MLX90255BA, you still have the same sensor in the current orders, we only changed the datasheet. The reason is that, if you use a duty cycle of the clock far from 50%, the sensor will have to be limited to 500kHz. We have thus changed the datasheet so that the max frequency corresponds to the worst duty cycle. If you use a standard 50% duty cycle, you can use the sensor at 1MHz. However, we have developed a new sensor called MLX90255BC, backward compatible with BA, that can operate up to 800kHz at short or long duty cycles (still 1MHz for 50% duty cycle).
Buy MLX90255BC
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