The OPT ADC 10k 32b 1cha is a single channel 10kSPS 32 bit ADC card
in the format defined by the CERN TE-EPC group for use with the Function
Generator Controller (FGC 3.2) . It is also known under the name HPM7177.
The device is a metrology-grade ADC for the highest accuracy class
in the HL-LHC accelerator. CERN will need over a hundred.
The design is based on a commercial ADC, the Analog Device AD7177-2. It is a standalone unit that interfaces through an optical fibre for the read-out and synchronization. The target analog signal bandwidth is 2000 Hz, and the main design objectives are very low 1/f noise and excellent short-term stability and accuracy with an effective resolution over 23 bits for a bandwidth below 10 Hz.
In the second half of 2019 several prototypes have been produced and tested. Based on this feedback, a revised version (V2) was prepared in 2020 and will be tested by the end of the year.
In 2021 a full metrological characterization of the device will be carried out and presented.