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The DANA IC (Detector Array for Nuclear Applications Integrated Circuit) is a 16 x 16, 500mm pitch array of channels with a charge sensitive amplifier/shaper, trigger output and sparse readout intended for use in flip-chip connection with a spectroscopy-grade 2D detector pixel array. The advantages of such a readout channel array include lower input capacitance and noise, finer pixel pitch, more compact sensor readout assembly and ease of tiling array units into a large-area 2D array. On the other hand, its format entails the challenge of fitting complex circuitry within the unit cell area, developing the matching detector pixel array, and finding a solution for reliable and cost-effective IC-detector bonding.
The figure above shows the block diagram for a single signal chain of the chip. The key features of DANA are summarized in the table below.
DANA™
Key Features:
| Number
of channels |
16
x 16 matrix, 500µm pitch |
| Front
end |
Self-resetting
charge sensitive amplifiers |
| Input
energy range |
¼
1 to 150 KeV |
| Count
rate capability |
>
400 x 103 counts per second, all channels in parallel |
| Gain
and offset |
Digitally
adjustable for each channel |
| Pulse
shaping time |
Selectable,
1 to 4.0 µs. |
| Input
referred noise |
approximatily
30 e rms at 0 pf input |
| Power
Consumption |
1500
mW nominal |
Data
readout |
Controlled
by programmable token logic |
Daisy
chaining |
Up
to 16 chips |
Die
size |
8.575
x 9.535 mm2 |
| © 2008 NOVA R&D Inc. All Rights Reserved. |
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