MLX90255K ETC [List of Unclassifed Manufacturers], MLX90255K Datasheet

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MLX90255K

Manufacturer Part Number
MLX90255K
Description
Linear Optical Array
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet

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MLX90255KWB-BAM
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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 Texas Instruments TSL1301 & TSL1401 and MLX90255AA
Operation to 1MHz
Applications
Position Sensing
Electrical Power Assist Steering (EPAS)
Spectrometer Applications
Ordering Information
Part No.
MLX90255
MLX90255
Functional Diagram
MLX90255BA Linear Optical Array
3901090255
2
Hold
Integrator Reset
Pixel 1
132-Bit Shift Register
Sample
Switching Logic
1
Q1
Temperature Suffix
K
K
Pixel 2
Q2
Pixel 132
Q132
5
Package
LA
JA
4
External
Load
3
Page 1
Datasheet
Option
-BA
-BA
Description
The MLX90255BA 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) and 8 µm
spacing between pixels. Operation is simplified
by internal control logic that requires only a
serial-input (SI) signal and a clock.
The
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.
(continued on page 4)
sensor
MLX90255BA
consists
Temperature Range
-40°C to 125°C Automotive
-40°C to 125°C Automotive
Linear Optical Array
of
Rev 1.2 08-Aug-01
128
photodiodes

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MLX90255K Summary of contents

Page 1

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 ...

Page 2

MLX90255BA Electrical Specifications DC Operating Parameters T = -40 A parameter symbol test conditions Supply voltage Vdd Input voltage Vi High-level input voltage Vih Low-level input voltage Vil Hysteresis on SI and CLK Wavelength of light source Clock frequency Fclock ...

Page 3

MLX90255BA Electrical specifications All tests are made with 0.7ms integration time, at 10mW/cm² light = 100% at 25°C at 880nm and with a clock speed of 500kHz in, 250kHz out, and 500kHz, unless otherwise specified in the Test Conditions. 100 ...

Page 4

General Description (continued from page 1) As the SI pulse is clocked through the shift register, the charge stored on the sampling capacitors is sequentially connected to a charge- coupled output amplifier that generates a voltage on the analog output ...

Page 5

Performance Graphs Typical Photodiode Spectral Response Curve (%), without Anti Reflection Coating* *There is also an option for an ripples in the figure above. With this special Anti Reflection Coating, the sensitivity curve in function of wavelength will be somewhat ...

Page 6

Disclaimer Melexis reserves the right to periodically make modifications to product specifications. The information included herein is believed to be accurate and reliable. However, Melexis assumes no responsibility for its use; nor for any infringements of patents or other rights ...

Page 7

MLX90255BA (SMD8) LA package dimensions MLX90255BA Linear Optical Array 3901090255 MLX90255BA Datasheet Page 7 Linear Optical Array Rev 1.2 08-Aug-01 ...

Page 8

MLX90255BA (GLP5) JA package dimensions 1 MLX90255BA Linear Optical Array 3901090255 MLX90255BA Datasheet Linear Optical Array LA (SMD8) Pin Description Pin Symb Description Serial Input. Si defines the start of the data-out sequence 2 CLK Clock. CLK ...

Page 9

MLX90255BA Linear Optical Array 3901090255 MLX90255BA Datasheet Linear Optical Array JA (GLP5) Pin Description Pin Symb Description Serial Input. Si defines the start of the data-out sequence 2 CLK Clock. CLK controls the charge transfer, pixel output ...

Page 10

MLX90255BA Leadframes JA (GLP5) Leadframe For the latest version of this document our website at: Or for additional information contact Melexis Direct: Europe and Japan: Phone: + E-mail: sales_europe@melexis.com MLX90255BA Linear Optical Array 3901090255 ...

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