DAQ14125 – 14-bit, 125 MS/s, 8-Channel Digitizer

The DAQ14125 is a high-performance 14-bit, 125 MS/s digitizer with 8 single-ended analog input channels, designed for precision data acquisition and customizable real-time signal processing. Built around a Xilinx Zynq-7035 SoC, it combines high-speed digitization with flexible, user-programmable digital I/O, making it ideal for scientific, industrial, and detector development applications.

Key Features

• 8 analog input channels (BNC, single-ended)
• Sampling rate: 125 MS/s
• Resolution: 14 bits
• Input impedance: selectable 50 Ω or 1 kΩ
• Input voltage range: ±2 V
• Analog gain: software-selectable, 1:80
• Offset control: ±2 V baseline adjustment
• Integrated signal shaping and conditioning

System Architecture

• Xilinx Zynq-7035 SoC with:
  • Dual-core ARM Cortex-A9 @ 1 GHz
  • Programmable logic for real-time DSP
• Memory:
  • 1 GB DDR3 RAM
  • 1 GB Flash storage
• User-programmable via SCI-Compiler
• Linux OS with full remote control support

Connectivity & Interfaces

• 1× Ethernet port (1 Gbps)
• 2× SFP+ slots (optical link, up to 10 Gbps)
• 8× BNC analog inputs
• LVDS/VHDCI digital I/O:
  • 32 differential LVDS lines
  • 58 CMOS 2.5 V, 6 CMOS 1.8 V lines
• LEMO connectors for general-purpose digital I/O (TTL)
• External clock and synchronization input/output (LEMO)
• JTAG (USB mini) for firmware updates

Signal Processing & Control

• Analog front-end (AFE) with:
  • Selectable input impedance
  • Programmable gain (1–80)
  • Configurable offset
• Digitization and real-time processing managed in FPGA
• ARM processor handles:
  • Configuration
  • Data management
  • Ethernet communication
• SCI-Compiler support for user firmware development

Digital I/O Applications

• Fast parallel readout (via VHDCI)
• Trigger and veto input handling
• Interface with ASICs (parallel or serialized)
• Direct digital readout from photon detectors
• Custom firmware-defined I/O behavior

Mechanical & Environmental

• Form factor: 19", 2U rack-mount
• Dimensions: 88 × 482 × 367 mm (396 mm with handles)
• Power supply: 100–240 V AC, 0.8 A @ 220 V
• Operating temperature: –20 °C to +50 °C
• Humidity: 25–95% RH (non-condensing)
• Altitude: up to 2000 m

Use Cases

• Detector development (analog/digital readout)
• Real-time waveform acquisition and shaping
• Parallel or serialized ASIC interfacing
• Experimental physics and instrumentation test benches