Readout
Electronics for Nuclear Applications. A multi-channel charge sensitive
amplifier/shaper ASIC chip for reading position sensitive solid state
detectors
RENA™ can be used in applications requiring high spatial and energy
resolution position sensitive detectors where no external trigger is available;
from gamma-ray and x-ray astronomy, nuclear physics to medical and industrial
imaging. The RENA™ chip can be used with:
RENA™ can be supplied as individual chips or integrated with position
sensitive solid state detectors such as silicon, GaAs, CdTe, CdZnTe, diamond
strip, pixel, or pad detectors. Interface electronics with data acquisition
software and test and evaluation systems are also available.
Number of channels: |
32 + two test channels |
Data readout modes: |
Global trigger: All enabled channels read upon
when any channel is triggered.
Sparse readout: Only the channels that have been triggered are read
out.
Neighbor readout: Adjacent channels also readout in addition to
sparse readout.
External delay trigger: Delay the disabling of non-triggered channels
(see text)
Select all: Read enabled channels on an external trigger pulse |
Two discriminator levels: |
Independent voltage inputs, 1.5 V to 3.5 V (Only
one controls the trigger output) |
Readout data: |
Channel address, overload bit and pulse height
level for external ADC conversion |
Readout time: |
475 ns per channel |
Daisy chain: |
Up to 16 chips can be daisy chained to be readout
as a single chip |
Power consumption: |
~200 mW per chip |
Analog test output modes: |
Enable any one channel
Select peak-detect or follower mode |
Analog test input mode: |
Input line coupled through 0.05 pF capacitor to
each channel, with individual enable switches |
Shaping time: |
0.4, 0.73, 1.06, 1.34, 1.73, 3.17, 4.61 or 6.05
micro-sec |
Dynamic range: |
0 to 50 ke (180keV in Si, 225 keV
for a CdZnTe detector) |
Input referred noise: |
<150 e RMS + 8 e RMS/pF@ 550 e
input charge pulse
(<1.2keV FWHM + 68 eV FWHM/pF @ 20 keV(Si))
(1.6 keV FWHM + 84 eV FWHM/pF @ 25keV (CdZnTe)) |
Chip size: |
4.9 x 6.9 mm, 101 pads |
The following pages contain spectra obtained and applications using the
RENA™ as front-end readout electronics. Please click to view.
