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Número de pieza | TH7888A | |
Descripción | Area Array CCD Image Sensor | |
Fabricantes | ATMEL Corporation | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TH7888A (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
No Preview Available ! Features
• 1024 x 1024 Pixels with Memory Zone
• Up to 30 Images/Second
• Built-in Antiblooming Device Providing an Electric Shutter Function
• Pixel: 14 µm x 14 µm
• Image Zone: 14.34 x 14.34 mm2
• Two Outputs at 20 MHz Each
• Readout Through 1 or 2 Outputs
• Possible Binning 2 x 2
• Optical Shield Against Parasitic Reflexions and Stray Light
• A/R Window in 400 - 700 nm Bandwidth
Description
The TH7888A is particularly designed for high data rate applications (up to 30 pic-
tures/second in 1024 x 1024 progressive scan format) in the medical and industrial
fields. This area array image sensor consists of a 1024 x 1024 pixels (14 µm x 14 µm)
image zone associated with a memory zone (masked with an optical shield). To
increase the data rate, two separate outputs are provided, which can be used for par-
allel readout (the readout frequency is up to 20 MHz/output, leading to a total readout
frequency of 40 MHz). These two outputs allow three readout modes (single or dual
port). The TH7888A is designed with an antiblooming structure which provides an
electronic shutter capability. Moreover, the 2 x 2 binning mode is available on this sen-
sor, providing an image size of 512 x 512 pixels with 28 µm x 28 µm pixels. The
TH7888A package is sealed with a specific anti-reflective window optimized in the 400
- 700 nm spectrum bandwidth on the sealed version.
Area Array CCD
Image Sensor
(1024 x 1024
Pixels with
Antiblooming)
TH7888A
Rev. 1999A–IMAGE–09/03
1
1 page TH7888A
Absolute Maximum Ratings*
Storage Temperature ..................................... -55°C to +150°C
Operating Temperature.................................... -40°C to +85°C
Thermal Cycling..........................................................15°C/mn
Maximum Applied Voltages:
• Pins: Y9, AA9, Y10, AA10, Y5, AA5, Y6,
AA6, Y4, B2, A2, A3, B3, B1, A1, B4, A6 ...........-0.3 V to 15 V
• Pins: A9, A8, B10, B8, B7, A7, AA7 ..............-0.3 V to 15.5 V
• Pin: Y7..............................................................-0.3 V to 12 V
• Pins: A4, A5, B5, B6, Y8, AA4, AA8................... 0 V (ground)
*NOTICE:
*Stresses above those listed under absolute
maximum ratings may cause permanent device
failure. Functionality at or above these limits is
not implied. Exposure to absolute maximum rat-
ings for extended periods may affect device reli-
ability. Operating range defines the limits within
which functionality is guaranteed. Electrical limits
of applied signals are given in the operating con-
ditions section.
Operating Precautions
Shorting the video outputs to any pin, even temporarily, can permanently damage the
on-chip output amplifier.
1999A–IMAGE–09/03
5
5 Page Exposure Time
Reduction
TH7888A
The TH7888A provides an exposure time control (electronic shutter) function.
The exposure time reduction is achieved by pulsing all the ΦPi gates to 0 V to continu-
ously remove all the photogenerated electrons through antiblooming drain VA.
Figure 12. Timing Diagram for Electronic Shutter
Frame Period
2 µs
ΦA
Φ P1
Φ P2
1 µs
Φ P3
Φ P4
Transfer
Obturation
Integration
Note: To view fall and rise times see Figure 6 on page 7
1999A–IMAGE–09/03
11
11 Page |
Páginas | Total 21 Páginas | |
PDF Descargar | [ Datasheet TH7888A.PDF ] |
Número de pieza | Descripción | Fabricantes |
TH7888A | Area Array CCD Image Sensor | ATMEL Corporation |
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