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參數(shù)資料
| 型號： | MLX90255KLA |
| 元件分類： | 光電元器件 |
| 英文描述： | LINEAR OUTPUT PHOTO DETECTOR |
| 封裝： | SMD8, 8 PIN |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 512K |
| 代理商： | MLX90255KLA |
MLX90255BA
Linear Optical Array
MLX90255BA Linear Optical Array
Page 4
Rev 1.0
22/January/01
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 analog output
AO. Two dummy pixel values are shifted out first,
then the 128 actual pixel bits, followed by two
additional dummy pixel bits, for a total of 132 data
bits.
The integrator reset period ends 18 clock cycles after
the SI pulse is clocked in. So the light-integration
starts after the 18th CLK pulse.
The light-integration ends at the next SI pulse.
Between the end of the 132nd clock pulse and the
next SI pulse, a minimum time of 10Sec is
necessary for an effective S&H function.
So the minimum integration time of the MLX90255BA
is (132-18) * Ts +10s and thus dependent on clock
speed. (Ts = clock period)
After the 132 data bits are clocked out, the output
becomes high impedance. (see figure)
The AO is driven by a source follower that requires
an external pulldown res istor. (typically 330
) The
output is nominally 125mV for no light input and 2.4V
for a nominal full-scale output. The pixel gain is 15%
bigger at the edges than in the middle (cosine
correction) in order to get a flat output when
illuminating the device with a single LED light source.
The MLX90255 is intended for use in a wide variety
of applications, including: image scanning, m ark and
code reading, optical character recognition (OCR)
and contact imaging, edge detection and positioning,
and
optical
linear
and
rotary
encoding.
The
MLX90255
is
a
replacement
for
the
Texas
Instruments' TSL1301 and TSL1401 parts.
Stresses beyond those listed under "absolute maxi-
mum ratings" may cause permanent damage to the
device.
These are stress ratings only, and functional opera-
tion of the device at these or any other conditions
beyond those indicated under "recommended oper-
ating conditions" is not implied.
Exposure to absolute-maximum -rated conditions for
extended periods may affect device reliability.
Supply Voltage, Vdd
+7V
Digital Input Current Range
-20 to 20 mA
Operating Free-Air Tempera-
ture Range, Ta
-40C to +125C
(automotive compliant
optical package)
Storage Temperature range,
Tstg
-40C to +125C
Lead Temperature
1.6 mm (1/16 inch) from case
for 10 seconds
260C
Absolute Maximum Ratings
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MLX90255KUC-BAM | 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:Linear Optical Array |
| MLX90255KUC-BAV | 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:Linear Optical Array |
| MLX90255KUC-BCR | 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:Linear Optical Array |
| MLX90255KUC-BCV | 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:Linear Optical Array |
| MLX90255KWB-BAM | 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:Linear Optical Array |
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