An improved version of the ADC daughter board used in the PROMETEO
test-bench has been in development at WITS. PROMETEO is the new test-bench
system that will be used for the full certification of the upgraded front-end
electronics of the ATLAS TileCal.
The board was developed to filter and digitise analog
trigger signals coming from the front-end electronics of the TileCal. It makes
use of two ADC571 chips to sample 16 differential analog signals at 40 MHz
using a 12-bit resolution. A Xilinx
VC707 dev-board with a Virtex-7 FPGA is used for the control and data read-out
of the ADC board. The 16 data channels to the FPGA have a combined data rate of
7680 Mbps.
This
week we received the newly manufactured PCBs which have since been sent off for
assembly. Once final testing is completed the new board will be fully integrated
into the ATLAS system.
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