BNC Adapter Board for Analog Discovery

Overview

This project presents a custom-designed BNC Adapter Board for the Analog Discovery platform (AD2/AD3), inspired by the original Digilent BNC Adapter.

The board enables seamless connection between Analog Discovery and standard laboratory equipment using BNC connectors, making it ideal for oscilloscope measurements, waveform generation, and signal analysis.

Key Features

• Standard BNC connectors for robust and noise-resistant connections
• Compatible with Analog Discovery 2 and 3 (2×15 interface)
• Supports oscilloscope inputs and waveform generator outputs
• Improved signal integrity using proper grounding and routing
• Compact and durable PCB design for lab and field use

How It Works

The board connects directly to the Analog Discovery device via a 2×15 header interface. It converts the native pin headers into BNC interfaces, allowing:

• Direct connection to oscilloscopes and lab instruments
• Use of coaxial cables for reduced noise and interference
• Accurate signal probing and waveform output

This makes the setup more professional and reliable compared to standard jumper wire connections.

Applications

• Oscilloscope measurements using BNC probes
• Signal integrity testing and debugging
• Educational labs and electronics training
• Mixed-signal development and validation
• RF and analog signal experimentation

Design Details

• PCB Type: 2-Layer FR4
• Standard 2.54mm header interface
• Optimized grounding for low-noise signal paths
• Supports multiple analog channels via BNC
• Designed for mechanical stability with panel-mounted connectors

Files Included

• Gerber Files
• BOM (Bill of Materials)
• Pick & Place (CPL) file

Why This Project?

This adapter enhances the usability of Analog Discovery by enabling professional-grade connections through BNC cables. It improves measurement accuracy, reduces noise, and provides a clean and reliable interface for testing and prototyping.

Keywords

Analog Discovery, BNC Adapter, Oscilloscope Interface, Signal Analysis, Waveform Generator, PCB Design, Test Equipment, DIY Electronics