Advanced
Charge-conversion Electronics. A multi-channel charge sensitive amplifier/shaper ASIC chip for
reading position sensitive solid state detectors
Applications
ACE™ can be used in applications requiring high spatial and energy
resolution position sensitive detector arrays from gamma-ray and x-ray
astronomy, nuclear physics to medical and industrial imaging. The ACE™
chip can be used with:
- Multianode PMTs
- PMTs and Avalanche Photodiodes
- Silicon strip and pad detectors
- Channeltrons & Microchannel Plates
Availability
At present, only a very limited number of ACE™ chips in PLCC 84
or CQFP packages are available. Enhancement of the ACE™ chip design
and porting it to a new fabrication process are currently under study.
NOVA welcomes both technical input and logistical support for this project.
A test fixture for the ACE™ chip is available as a loan unit for
users who wish to evaluate the chip and possible circuit designs for the
support electronics. NOVA is also open to requests for customization of
the ACE™ chip design for specific applications
Specifications
Number of Channels: |
16 |
Power Consumption: |
208 mW per chip (13 mW/channel) |
Full scale signal: |
31 pC (700 MeV Si) |
Dynamic range (full scale:threshold): |
1400:1(not self-triggering over the whole range)
500:1(self-triggering range) |
RMS noise: |
~ 100 KeV |
Gain variation: |
< 10% |
Threshold variation: |
~ 10% rms at 3 MeV |
ADC type: |
12-bit high-linearity Wilkinson |
Dead time per event: |
~(6+0.125 N) microseconds |
Integral nonlinearity: |
~ .1% of full scale |
Max. leakage current cancellation: |
1 micro-Amp |
Temperature coefficient of gain: |
< 20 ppm/K |
Chip size: |
6.1 x 7.3 mm, 84 pads |
Offset temperature variation (-20C to 40C) |
< 1 channel (after correction) |
Cross talk for full scale pulse: |
2 channels |
Documents
- ACE™ Brochure
with Specifications
- ACE™ ASIC Simplified
Channel Block Diagram
|
