# ELS Instruments (former CAEN ELS)

> ELS Instruments s.r.l. is an Italian technology company specialized in high-performance digital power electronics, precision current measurement systems, and advanced electronic instrumentation for particle accelerators, scientific research facilities, quantum computing, NMR electromagnets, magnetic sensor testing, PV cell testing, defense, medical imaging and high-end industrial applications.

The company designs, develops and manufactures all solutions in-house — covering hardware (power, RF, low-signal, high-speed), firmware (FPGA, DSP, SoC) and software (Python, EPICS, LabVIEW). Offerings range from catalogue products to customizations and full-custom engineering. Customers include major research facilities (APS, KEK, DESY, KIT, Fraunhofer, BNL) and high-end industrial players (Tesla Motors, Apple, Samsung, Bosch). The company operates under ISO 9001:2015 and ISO 14001:2015 certifications.

## Company information

- [About ELS Instruments](https://www.caenels.com/company-profile/): Company profile, history, certifications and corporate background
- [Contact and Headquarters](https://www.caenels.com/contact-us/): Operational HQ in the former Arsenal site, Trieste, Italy

## Product lines

ELS Instruments organizes its catalogue into four main product lines: Power Supply Systems, Precision Current Measurements, Beamline Electronics Instrumentation, and FMC/MicroTCA equipment.

### Power Supply Systems

- [FAST-PS](https://www.caenels.com/product/fast-ps/): Bipolar digital voltage- and current-controlled fast power supply. 19"-1U stand-alone, models up to ±30 A and ±80 V, digital control loop, 24-bit setting/readback, embedded web-server, 4-channel oscilloscope and waveform generator, Ethernet + 2× SFP ports. Used for particle accelerators, magnet power supply, motor & magnet drives, PV cell testing, medical imaging.
- [FAST-PS-M](https://www.caenels.com/product/fast-ps-m/): Monopolar multi-interface digital fast power supply. 19"-1U, models 30A-30V, 60A-10V, 75A-8V, 100A-6V (600 W and 900 W). Dual interface (Ethernet + 2× SFP at 10 kHz), embedded web-server with AWG and 4-channel oscilloscope. For magnet power supplies and laboratory equipment.
- [FAST-Bi-1K5](https://www.caenels.com/product/fast-bi-1k5/): 1.5-kW bipolar, bidirectional and regenerative full 4-quadrant power supply. 19"-2U, models up to ±150 A and ±100 V. CC, CV, CP, CR regulation, embedded DCCT, web-server, EPICS IOC, paralleling up to 4 units (6 kW). For battery testing, superconducting magnets, accelerator magnet supplies, PV cell testing, configurable active load.
- [BatReg2](https://www.caenels.com/product/batreg2/): Bidirectional regenerative high-precision digital battery cycler/tester. 19"-2U, models up to 100 V and ±150 A, 1.5–2 kW. AC-DC efficiency >86 %, DC-AC >80 %, regenerative architecture sends energy back to the grid. Embedded battery polarity detection circuit, 24-bit/100 ksps sampling, embedded web-server with AWG and oscilloscope. For battery testing/cycling, charging and simulation.
- [NGPS](https://www.caenels.com/product/ngps/): 10-kW New Generation high-stability digital power supply. 19"-3U, models 100 A-100 V, 140 A-50 V, 200 A-50 V, 300 A-30 V. Best-in-class temperature coefficient (<2 ppm/K) thanks to 0-FLUCS DCCT, parallel operation up to 40 kW via SFP, water-cooled versions available. For particle and medical accelerators, industrial plants, battery/supercapacitor/fuel cell testing, PV cell testing, medical imaging.
- [EASY-DRIVER](https://www.caenels.com/product/easy-driver/): Compact digital bipolar current-controlled power supply. 19"-1U, models from ±1 A/±12 V to ±10 A/±20 V (12–200 W). True bipolar zero-crossing, 10/100 Mbit Ethernet, free "Visual EASY-DRIVER" control software. For particle accelerators, laboratory test equipment, magnetic field generation.
- [REGUL8OR](https://www.caenels.com/product/regul8or/): Universal high-precision power supply controller that converts any standard programmable power supply or amplifier into a state-of-the-art multi-function power converter. 19"-1U fanless, supports up to ±1000 A and ±200 V (max 200 kW), digital control loop on FPGA at 100 kHz, 24-bit setting/readback, line and load regulation <0.0005 %/FS, temperature coefficient <0.0005 %/K in CC. Used together with 0-FLUCS current transducers (sold separately). Drives the connected supply via ±5/±10 V DAC or 4-20 mA loop. Embedded web-server, 4-channel oscilloscope, waveform generator at 100 ksps, EPICS IOC, synchronization of multiple units. Also used as the controlling unit in CPS (CAENels Power Systems) custom high-current/high-power solutions. For programmable power supplies, laboratory equipment, power source emulation
- [QDS — Quench Detection System](https://www.caenels.com/product/qds/): 4-channel multi-range precision digital quench detection system for superconducting magnets. Each channel floats up to 100 V, 11 full-scale ranges from ±20 V (2.4 µV resolution) to ±20 mV (2.5 nV resolution), 24-bit ADC at 100 kHz, configurable integration time from 1 ms to 1 s, absolute and differential quench thresholds, integrated 12-V and 24-V persistent switch drivers, 10/100/1000 Ethernet.

### Precision Current Measurements

- [CT-BOX](https://www.caenels.com/product/ct-box/): Standalone digital readout/measuring unit for the 0-FLUCS current transducers, providing best-in-class DC and AC current measurements with 7½-digit readings. Internal calibration and thermal stabilization with <1 ppm/K temperature coefficient, 24-bit resolution, sampling from 0.1 Hz to 100 kHz, accuracy <0.01 % standard or <0.005 % with High-Accuracy calibration option. Available for 100, 150, 200, 300, 400, 600 and 1000 A ranges. Integrated low-noise AC/DC power supply (90–260 VAC, 46–440 Hz), microSD data logger, local display, ±10 V analog monitor on LEMO, configurable trigger/alarm I/O, external temperature probe, Ethernet 10/100 + USB 2.0 + RS-232. Desktop or 1U-19" rack mounting (with optional brackets), dedicated CT-Viewer software. For test & measurement setups, calibration systems, power supply feedback, biomedical devices.
- [CT-PCB Series (CT-13 / CT-26 / CT-52)](https://www.caenels.com/product/ct-pcb-series/): Compact PCB-mount 0-FLUCS DC current transducers based on closed-loop technology, rated at ±13 A, ±26 A and ±52 A primary current with 1:250, 1:500 and 1:1000 transform ratios. Galvanic isolation, current or voltage output ("V" version with embedded low-TC shunt and low-noise amplifier), bandwidth up to 500 kHz, temperature coefficient <0.5 ppm/K, noise <1 ppm @ 200 Hz. 16-pin through-hole PCB mounting, metal casing for noise immunity, internal primary conductor, UL 94 V-0 flammability grade, ±15 V supply. Ideal Hall-effect sensor replacement for power supplies, calibration systems, biomedical devices, test & measurement setups.
- [CT-100](https://www.caenels.com/product/ct-100/): 0-FLUCS closed-loop DC current transducer rated at ±100 A primary current with 1:1000 transform ratio. Bandwidth >500 kHz (>200 kHz for "V"-version), temperature coefficient <0.5 ppm/K, linearity <3 ppm, noise <0.5 ppm @ 200 Hz. Available as current output or voltage output ("V"-version, 0.1 V/A) and with DB-9 connector ("C") or 7-pin PCB through-hole connector ("P"). 16 mm primary conductor hole, 250 g, ±15 V supply. For precision power supplies, NMR, calibration systems, biomedical devices, test & measurement.
- [CT-150](https://www.caenels.com/product/ct-150/): 0-FLUCS closed-loop DC current transducer rated at ±150 A primary current with 1:1500 transform ratio. Same form factor and performance class as CT-100 (>500 kHz BW, <0.5 ppm/K TC, <3 ppm linearity), voltage output ratio (1/15) V/A. DB-9 or 7-pin PCB connector versions, ±15 V supply, 16 mm primary hole, 250 g. For precision regulated power supplies, NMR, calibration systems, biomedical devices.
- [CT-200](https://www.caenels.com/product/ct-200/): 0-FLUCS closed-loop DC current transducer rated at ±200 A primary current with 1:1000 transform ratio. Bandwidth >200 kHz (100 kHz for "V"-version), temperature coefficient <0.5 ppm/K, linearity <3 ppm, noise <1.5 ppm @ 200 Hz. Voltage output ratio 0.05 V/A. Standard DB-9 connector for rack/panel mounting, 30 mm primary conductor hole, 380 g, ±15 V supply. UL 94 V-0 flammability grade. For precision power supplies, calibration systems, NMR, biomedical, industrial test & measurement.
- [CT-300](https://www.caenels.com/product/ct-300/): 0-FLUCS closed-loop DC current transducer rated at ±300 A primary current with 1:1500 transform ratio. Bandwidth >200 kHz (150 kHz for "V"-version), <0.5 ppm/K TC, voltage output ratio (1/30) V/A, noise <1.8 ppm @ 200 Hz. DB-9 connector, 30 mm primary hole, 380 g. Same applications as CT-200 with higher current capability.
- [CT-400](https://www.caenels.com/product/ct-400/): 0-FLUCS closed-loop DC current transducer rated at ±400 A primary current with 1:2000 transform ratio. Bandwidth >200 kHz (150 kHz for "V"-version), <0.5 ppm/K TC, voltage output ratio 0.025 V/A, noise <2 ppm @ 200 Hz. DB-9 connector, 30 mm primary hole, 380 g. For high-precision regulated power supplies, NMR, industrial calibration systems.
- [CT-600](https://www.caenels.com/product/ct-600/): 0-FLUCS closed-loop DC current transducer rated at ±600 A primary current with 1:1500 transform ratio. Bandwidth >150 kHz, <0.5 ppm/K TC, voltage output ratio (1/60) V/A, noise <1.5 ppm @ 200 Hz, linearity <3 ppm. DB-9 connector, 30 mm primary conductor hole, 450 g. For precision power supplies and inverters in industrial, power generation and automotive applications.
- [CT-1000](https://www.caenels.com/product/ct-1000/): 0-FLUCS closed-loop DC current transducer rated at ±1000 A primary current with 1:2000 transform ratio. Bandwidth >150 kHz, <0.5 ppm/K TC, voltage output ratio 0.01 V/A, noise <1.5 ppm @ 200 Hz, linearity <3 ppm. DB-9 connector, 30 mm primary hole, 600 g. Used in calibration, acceptance testing and quality control in industrial, power generation and automotive fields.
- [CT-2000](https://www.caenels.com/product/ct-2000/): 0-FLUCS closed-loop DC current transducer rated at ±2000 A primary current with 1:2000 transform ratio. Bandwidth typ. 100 kHz, <0.5 ppm/K TC, voltage output ratio 5 mV/A, noise <2.5 ppm @ 200 Hz, linearity <3 ppm/FS. DB-9 connector for current output, BNC connector for voltage output, TEDS (IEEE 1451.4) interface, 67 mm primary conductor hole, 5 kg, +24 V supply. For high-current power supplies, EV battery testing, calibration systems, NMR, industrial test & measurement.
- [CT-3000](https://www.caenels.com/product/ct-3000/): 0-FLUCS closed-loop DC current transducer rated at ±3000 A primary current with 1:2000 transform ratio. Bandwidth typ. 100 kHz, <0.5 ppm/K TC, voltage output ratio (1/300) V/A, noise <2 ppm @ 200 Hz, linearity <3 ppm/FS. DB-9 connector for current output, BNC connector for voltage output, TEDS (IEEE 1451.4) interface, 67 mm primary hole, 5 kg, +24 V supply. Top-of-the-line transducer for very high-current applications including EV battery testing, large power supplies, industrial inverters.

### Beamline Electronics Instrumentation

- [TetrAMM](https://www.caenels.com/product/tetramm/): 4-channel fast-interface bipolar picoammeter with integrated high-voltage source, designed for quad-monitoring applications such as photon Beam Position Monitors. 4-channel simultaneous sampling at up to 100 kHz with 24-bit ADC, bipolar current ranges from ±120 nA to ±120 µA (with custom variants from ±1.2 nA to ±1.2 mA), temperature coefficient <0.001 %/FS/K. Integrated low-noise HV source, factory-configurable polarity (standard ±500 V @ 1 mA, up to ±4 kV) for detector biasing on SHV connector. BNC current inputs, 10/100/1000 Ethernet TCP-IP/UDP, SFP link, configurable trigger/gate, external interlock, auto-ranging, firmware remote update, FPGA + soft-processor on-board, free oscilloscope software. Ready to be integrated into the BEST stabilization system. For beam position monitoring, ion chambers readout, ultra-low current measurements, diamond detector readout, radiation monitoring.
- [AH401D](https://www.caenels.com/product/ah401d/): Compact 4-channel monopolar charge-integration picoammeter/electrometer designed as turnkey solution for photon BPM systems (diamond detectors, ion chambers, blade gap-monitors). 8 selectable input ranges from 50 pA full-scale (50 aA resolution) to 2 µA (2 pA resolution), user-selectable integration time from 1 ms to 1 s, 20-bit sigma-delta ADC with integrated noise reduction digital filter, sampling up to 1 kHz, noise <7 ppm/FS @ 200 pC. Dual-integrator architecture per channel ensures continuous current-to-voltage conversion with no dead time. 4-channel simultaneous sampling, Ethernet 10/100 Mbit/s, external trigger input, lightweight compact box for installation close to the detector to minimize cable length and noise pick-up, free oscilloscope software. For beam position monitoring, ion chambers readout, ultra-low current measurements, diamond detector readout, radiation monitoring.
- [AH501D](https://www.caenels.com/product/ah501d/): 4-channel bipolar picoammeter with analog voltage monitors and integrated bias voltage source, designed as turnkey solution for photon BPM systems (diamond detectors, ion chambers, blade gap-monitors). Three full-scale ranges from ±2.5 nA (300 aA resolution) to ±2.5 mA (300 pA resolution), 24-bit ADC, simultaneous 4-channel sampling at up to 26 kHz, noise <150 fA RMS. Built-in low-noise bias voltage source 0–30 V (0.003 % FS) on BNC connector with high-impedance state, buffered analog voltage monitor outputs for direct oscilloscope/tester observation of input current. Ethernet 10/100 Mbit/s, external trigger input, compact lightweight box, free oscilloscope software. For beam position monitoring, ion chambers readout, ultra-low current measurements, diamond detector readout, radiation monitoring.

### FMC and MicroTCA

- [DAMC-FMC2ZUP](https://www.caenels.com/product/damc-fmc2zup/): MTCA.4 Zynq UltraScale+ FMC/FMC+ carrier board, recommended for new designs. Based on Xilinx UltraScale+ MPSoC (XCZU11EG or XCZU19EG) with quad-core ARM Cortex-A53 at 1.5 GHz, PCIe Gen.4 x8, 100G Ethernet MAC. One FMC+ slot with 24 transceivers up to 28.21 Gbps and one HPC FMC slot up to 16.375 Gbps. White Rabbit support, USB Type-C with DisplayPort and USB 3.0 (allows standalone systems without separate CPU module), front-panel SFP+ Gigabit Ethernet, 4 GB + 1 GB DDR4 memory, 8 GB eMMC, MicroSD slot. Compatible with all DESY digital RTMs (DRTM-AD84, DRTM-VM2, DRTM-PZT4) and all modern Xilinx development tools (Vivado, HLS, Yocto, PetaLinux).
- [DAMC-FMC25](https://www.caenels.com/product/damc-fmc25/): Dual High Pin Count (HPC) FMC carrier board in MTCA.4 format. Double-width AMC with Xilinx Virtex-5 (XC5VFX70T) for high-throughput data processing and Spartan-6 (XC6SLX45T) for board management, 256 MB + 128 MB DDR2 memories. Two HPC FMC slots with 77 differential pairs and 2 GTX up to 6.5 Gbps each. uRTM D1.1 connectivity, PCIe x4 Gen.2, MicroSD card slot, external clock input on front panel. Designed and licensed by DESY. Used as the platform for the AMC-PICO-8 picoammeter board.
- [DAMC-FMC20](https://www.caenels.com/product/damc-fmc20/): Cost-efficient AMC carrier board in MTCA.4 format hosting one HPC and one LPC FMC mezzanine card. Double-width AMC with two Xilinx Spartan-6 FPGAs (one for serial high-speed communication, one for signal processing algorithms), 128 MB DDR2 memory, PCIe x4 AMC.1 type 1 compliant, four low-latency links, micro USB debug port, extra 12V power connector for high-current FMC applications. Designed and licensed by DESY. For R&D, accelerator controls, automation industry, telecommunications.
- [AMC-PICO-8](https://www.caenels.com/product/amc-pico-8/): 8-channel 20-bit bipolar picoammeter on a double-width AMC board in MTCA.4 format with rear I/O. Up to 1 MSPS simultaneous and independent sampling per channel, two independent full-scale ranges (standard ±1 mA and ±1 µA, with C1/C2/C3 variants from ±110 µA up to ±10 mA), input channels floating up to ±300 V respect to chassis ground. Triaxial LEMO input connectors, factory-calibrated with on-board EEPROM, data processing on Virtex-5 FPGA, board management on Spartan-6, PCIe communication with Scatter-Gather DMA, uRTM D1.1 connectivity. For photon beam position monitors, multi-channel fast current acquisition, detector readout, accelerator controls.
- [AMC-PICO-8-US+](https://www.caenels.com/product/amc-pico-8-us/): Next-generation 8-channel 1-MSPS 20-bit bipolar picoammeter AMC board based on UltraScale+ MPSoC. Same input characteristics as AMC-PICO-8 (8 channels, 20-bit, ±300 V floating, two ranges per channel) with embedded oscilloscope and embedded web-server functionality. Variants C1, C3, C4, C5, C6 with different full-scale ranges and bandwidths from ±110 µA to ±10 mA. Recommended for new designs requiring on-board signal processing and standalone monitoring.
- [HV-PANDA](https://www.caenels.com/product/hv-panda/): High Voltage Positive And Negative Double-width AMC board, MTCA.4 carrier hosting 4 high-voltage channels inherited from CAEN VME technology. Output ratings 500 V @ 1.5 W, 4 kV @ 7 W, or 6 kV @ 6 W with factory-selectable polarity (positive or negative). Floating return per pair of channels (±20 V to PE), nominal voltage accuracy <0.05 %, output ripple <3-4 ppm/FS, configurable ramp slew rate from 1 V/s to 500 V/s with 1 V/s resolution, switch-off or current-source mode on overcurrent. Communication via PCIe x1 over FAT PIPE, RTM management class D1.1, SHV output connectors. Developed in the DESY Helmholtz Validation Fund project "MTCA.4 for Industry". For semiconductor and gaseous detectors, vacuum photomultipliers, micro channel plates (MCP), drift chambers.
- [FMC-PICO-1M4](https://www.caenels.com/product/fmc-pico-1m4/): 4-channel 20-bit 1-MSPS bipolar floating picoammeter as an FPGA Mezzanine Card (VITA 57.1 LPC), to be mounted on HPC and LPC carrier boards. Inputs floating up to ±300 V respect to chassis ground, two independent full-scale ranges per channel (variants C1, C3, C4, C5, C6, C7 from ±110 µA up to ±10 mA), 24-bit factory calibration stored in on-board EEPROM, separate or daisy-chained SPI readout, external trigger/SOC and range selection on FMC connector, metallic EMI shield. Acts as readout board for the AMC-PICO-8 platform. For detector readout, multi-channel fast current acquisition, photon beam position monitoring, radiation monitoring.
- [FMC-4SFP+ / FMC-2SFP+](https://www.caenels.com/product/fmc-4sfp/): Cost-efficient FPGA Mezzanine Card (VITA 57.1 HPC) providing 2 or 4 SFP/SFP+ module slots for high-speed communication. Wide I/O operating voltage (VADJ 1.5 V to 3.3 V) compatible with virtually any FMC carrier, true level conversion of all SFP+ pins including I2C, I2C-controlled LVDS oscillator (10–280 MHz), individual module status LEDs, autonomous mode via DIP switches. Mountable on DAMC-FMC2ZUP and DAMC-FMC25 carriers. For fast communication interfaces, accelerator diagnostics and control.

## Optional

- [Full product documentation](https://www.caenels.com/llms-full.txt): Complete technical specifications for all ELS Instruments products in a single file
- [Product datasheets (PDF)](https://www.caenels.com/download/): Full technical specifications, ordering codes and options for all product lines
- [News and press releases](https://www.caenels.com/news/): Company updates, new product announcements, exhibitions and events