Design of a high radiation-hard driver for Mach-Zehnder Modulators based high-speed links for hadron collider applications
Abstract
This work presents a design of a driver in 65 nm TSMC technology for a custom MZM designed to withstand non-ionizing energy losses (NIEL) of up few 1016 n/cm 2 and up to 500 Mrad total ionization doses (TID). The design of the driver is optimized for a TID exceeding 500 Mrad, for a target bit rate of 10 Gbps. The driver uses a CML (Current Mode Logic) architecture. A cascode architecture is adopted in the last stage to increase the driving voltage. Two driver designs have been implemented, the largest sizing 347 × 180 μm2 layout area and about 170 mW predicted power consumption at 500 Mrad. The ASIC has been submitted to foundry in May 2018.
- Publication:
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Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- August 2019
- DOI:
- 10.1016/j.nima.2018.07.066
- Bibcode:
- 2019NIMPA.936..303P
- Keywords:
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- Front end;
- Trigger;
- DAQ and data management