The CCD42-90 is a large area full-frame (FF) imaging
device. Back illumination technology, in combination with an
extremely low noise amplifier, makes the devices well suited
to the most demanding astronomical and scientific imaging
applications.
DESCRIPTION
The device has an image area with 2048 x 4612 pixels each
13.5 µm square. There is a single read-out register with low-
noise amplifiers at both ends. Additional JFET buffers are
included in the package to provide an increased capability to
drive high-capacitance loads. A gate-controlled dump-drain
is provided to allow fast dumping of unwanted data. The
register is designed to accommodate four image pixels of
charge and a summing well is provided capable of holding
that from six image pixels. The output amplifier has a
feature to enable the responsivity to be reduced, allowing
the reading of such large charge packets.
The device is supplied in a package designed to facilitate
the construction of large close-butted mosaics used at
cryogenic temperatures. The design of the package will
ensure that the device flatness is maintained at the working
temperature.
The sensor is shipped in a protective container, but no
permanent window is fitted.
SUMMARY PERFORMANCE
(Typical values)
Number of pixels
Pixel size
Image area
Outputs
Package size
Package format
Focal plane height, above base
Connectors
Flatness
Amplifier responsivity
Readout noise (rms)
Maximum data rate
Image pixel charge storage
Dark signal at 173K
2048(H) x 4612(V)
13.5 µm square
27.6 mm x 62.2 mm
2
28.2mm x 67.3 mm
Invar metal package with
PGA connector
14.00 mm
PGA; 40 pins
15 µm p-v maximum
4.5 µV/e
−
3 e
−
at 20 kHz
3 MHz
150,000 e
−
3 e
−
/pixel/hour
VARIANTS
Standard silicon and deep depletion silicon device types can
be supplied with a range of AR coatings. Graded coatings
are available as custom variants.
Mating ZIF sockets are available to order.
PART REFERENCES
CCD42-90-g-xxx
g = cosmetic grade
xxx = device-specific part number
Details are given on the last page.
Devices with other formats (e.g. 2048 x 2048, 4096 x 4096
pixels) are also available in the same family.
Consult e2v technologies for further information on any of
the above options.
Quoted performance parameters given here are “typical”
values. Specification limits are shown later in this data
sheet.
Whilst e2v technologies has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use thereof
and also reserves the right to change the specification of goods without notice. e2v technologies accepts no liability beyond the set out in its standard conditions of sale in
respect of infringement of third party patents arising from the use of tubes or other devices in accordance with information contained herein.
