with very low readout noise give exceptional sensitivity.
DESCRIPTION
The sensor has an image area having 4096 x 4112 pixels,
split read-out registers at both top and bottom with charge
detection amplifiers at both ends. The pixel size is 15
m
square. The image area has four separately connected
sections to allow full-frame, frame-transfer, split full-frame or
split frame-transfer modes. Depending on the mode, the
read out can be through 1, 2 or 4 of the output circuits. A
gate-controlled drain is also provided adjacent to each of the
registers to allow fast dumping of unwanted data.
The output amplifier is designed to give very low noise at
read-out rates of up to 3 MHz. The low output impedance
simplifies the interface with external electronics and the
optional dummy outputs are provided to facilitate rejection of
common parasitic feed-through.
The device can be supplied in two package types- both
designed for cryogenic use- (a) Silicon Carbide/flex-cable or
(b) Aluminium Nitride/PGA package. The flex-cable package
allows close butting if needed.
Specifications are tested and guaranteed at 173 K (–100C).
The CCD231 devices described here are non-inverted (non-
MPP) types.
(B) Ceramic-PGA
(A) Buttable
SUMMARY PERFORMANCE (Typical)
Number of pixels
Pixel size
Image area
Outputs
Amplifier sensitivity
Readout noise (rms)
Maximum pixel data rate
Charge storage (pixel full well)
Flatness (both packages)
(A) Buttable package
Package size
Package format
Focal plane height, above base
Height tolerance
Connectors
(B) Ceramic-PGA package
Package size
Package format
Focal plane height, above base
Connectors
4096(H) x 4112(V)
15 µm square
61.4 mm x 61.7 mm
4
7 µV/e
5 e
at 1 MHz
2 e
at 50 kHz
3 MHz
350,000 e
<20 µm (peak to valley)
63.0 x 69.0 mm
SiC & 2 flex connectors
15.0 mm
±10 µm
Two 37-way micro-D
63.80 mm x 79.60 mm
Aluminium Nitride PGA
3.6 mm
Pin Grid Array (PGA)
VARIANTS
Standard silicon and deep depletion silicon device types are
available with a range of AR coatings. Graded coatings are
available as custom variants.
Devices with other formats (e.g. 8192 x 3172 pixels) or 3-
side butting can also be provided in the same family to
custom order.
A similar version (CCD230) is also available with an
alternative amplifier with higher charge handling capacity
and higher speed (up to 5 MHz), but with slightly increased
noise. These devices are generally inverted-mode types.
Consult e2v technologies for further information on any of
the above options.
Part References
See last page of data sheet for list of types.
Quoted performance parameters given opposite are “typical”
values. Specification limits are shown later.
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.
