====== Front-End-Board ====== Both the ACM and the LTA use the same front-end board, which was designed at the University of Zurich. It implements Low Noise, 1 GHz FastFET Operational Amplifiers (ADA4817-1), followed by a High-Speed, ±0.1 μV/°C offset drift, fully differential ADC driver per channel for a total of four channels. The ADA4817-1, based on Analog Devices provide ultralow noise (4 nV /√Hz), low offset voltage (2 mV maximum), and high input impedance. Power is supplied by the ACM/LTA board with a ± 5V input, regulated by a pair of low dropout regulators (LTOs) to 4V. Connectivity is assured through the Samtec Edge Rate Series High-Density Rugged connector with 60 contacts, supporting bandwidths up to 56 Gbps. Additionally, the ADA4945-1 fully differential amplifier is used in the design, offering selectable power modes. It operates across a broad power supply range of 3 V to 10 V and is ideal for driving high-resolution ADCs, such as SAR and Σ-∆ types. In full power mode, the ADA4945-1 operates with a quiescent current of 4 mA, while in low power mode, it consumes only 1.4 mA. The adjustable common-mode voltage and internal feedback loop of the ADA4945-1 ensure excellent output balance and suppression of harmonic distortion. These amplifiers, based on Analog Devices silicon germanium (SiGe) process, deliver a low voltage noise of 2.0nV /√Hz, ensuring high fidelity in signal processing. ===== Schematics and other Files ===== ^ File name ^ File ^ ^ FE_ADA4817 v1.00 || | Electronic Schematics | {{ :setup:frontend:fe_ada4817_sch.pdf |Schematics}} | | PCB Schematics | {{ :setup:frontend:fe_ada4817_pcb.pdf |PCB}} | | List of Materials | {{ :setup:frontend:fe_ada4817_bom.xls |List of Materials}} | ^ FE_ADA4817 v1.01 || | Electronic Schematics | {{ :setup:frontend:fe_ada4817_sch_1.01.pdf |Schematics}} | | PCB Schematics | {{ :setup:frontend:fe_ada4817_pcb_1.01.pdf |PCB}} | | List of Materials | {{ :setup:frontend:fe_ada4817_bom_1.01.xls |List of Materials}} | ^ FE_ADA4817_MK2 v1.1 || | Electronic Schematics | {{ :setup:frontend:fe_ada4817_mk2_sch.pdf |Schematics}} | | PCB Schematics | {{ :setup:frontend:fe_ada4817_mk2_pcb.pdf |PCB}} | | List of Materials | {{ :setup:frontend:fe_ada4817_mk2_bom.xls |List of Materials}} | ====== Tracking ====== The following chapter is used to track when, which and where the different modules of the Front-End boards are. ===== FE_ADA4817 v1.01 ===== 15 boards of this version, where produced. ^ Board No. ^ Institute ^ Data sent ^ Comments ^ | 1 | LPNH/Paris | 06.05.2024 | These Boards are not nummerated in the sense that there is no serial number placed on them. | | 2 | LPNH/Paris | 06.05.2024 | ::: | | 3 | LPNH/Paris | 27.06.2024 | ::: | | 4 | LPNH/Paris | 27.06.2024 | ::: | | 5 | LPNH/Paris | 27.06.2024 | ::: | | 6 | LPNH/Paris | 27.06.2024 | ::: | | 7 | LPNH/Paris | 27.06.2024 | ::: | | 8 | LPNH/Paris | 27.06.2024 | ::: | | 9 | LPNH/Paris | 27.06.2024 | ::: | | 10 | LPNH/Paris | 27.06.2024 | ::: | | 11 | LPNH/Paris | 27.06.2024 | ::: | | 12 | LPNH/Paris | 27.06.2024 | ::: | | 13 | LPNH/Paris | 10.02.2025 | ::: | | 14 | LPNH/Paris | 10.02.2025 | ::: | | 15 | LPNH/Paris | 10.02.2025 | ::: | ===== FE_ADA4817_MK2 v1.1===== 52 Boards of this version where produced (as for 02.06.2025). ^ Board No. ^ Institute ^ Date Sent ^ Comment ^ | 1 | LPNH/Paris | 23.06.2025 | | | 2 | LPNH/Paris | 23.06.2025 | | | 3 | LPNH/Paris | 23.06.2025 | | | 4 | LPNH/Paris | 23.06.2025 | | | 5 | LPNH/Paris | 23.06.2025 | | | 6 | LPNH/Paris | 23.06.2025 | | | 7 | LPNH/Paris | 23.06.2025 | | | 8 | LPNH/Paris | 23.06.2025 | | | 9 | LPNH/Paris | 23.06.2025 | | | 10 | LPNH/Paris | 23.06.2025 | | | 11 | LPNH/Paris | 23.06.2025 | | | 12 | LPNH/Paris | 23.06.2025 | | | 13 | LPNH/Paris | 23.06.2025 | | | 14 | LPNH/Paris | 23.06.2025 | | | 15 | LPNH/Paris | 23.06.2025 | | | 16 | LPNH/Paris | 23.06.2025 | | | 17 | LPNH/Paris | 23.06.2025 | | | 18 | LPNH/Paris | 23.06.2025 | | | 19 | LPNH/Paris | 23.06.2025 | | | 20 | LPNH/Paris | 23.06.2025 | | | 21 | LPNH/Paris | 23.06.2025 | | | 22 | LPNH/Paris | 23.06.2025 | | | 23 | LPNH/Paris | 23.06.2025 | | | 24 | LPNH/Paris | 23.06.2025 | | | 25 | LPNH/Paris | 23.06.2025 | | | 26 | LPNH/Paris | 23.06.2025 | | | 27 | LPNH/Paris | 23.06.2025 | | | 28 | LPNH/Paris | 23.06.2025 | | | 29 | LPNH/Paris | 23.06.2025 | | | 30 | LPNH/Paris | 23.06.2025 | | | 31 | | | Stored at UZH building 36, floor H, room 78 | | 32 | | | ::: | | 33 | | | ::: | | 34 | | | ::: | | 35 | | | ::: | | 36 | | | ::: | | 37 | | | ::: | | 38 | | | ::: | | 39 | University of Chicago | 26.05.2025 | | | 40 | University of Chicago | 26.05.2025 | | | 41 | University of Chicago | 26.05.2025 | | | 42 | | | Stored at UZH building 36, floor H, room 78 | | 43 | | | ::: | | 44 | | | ::: | | 45 | | | ::: | | 46 | | | ::: | | 47 | | | ::: | | 48 | | | ::: | | 49 | University of Zurich | 30.04.2025 | | | 50 | University of Zurich | 30.04.2025 | | | 51 | University of Zurich | 30.04.2025 | | | 52 | University of Zurich | 30.04.2025 | |