The NI BNC-2081 is an analog breakout board that expands signal connectivity between National Instruments DAQ devices and laboratory test equipment. It provides 24 BNC connectors for streamlined analog and digital signal routing, supporting up to 16 single-ended or 8 differential analog input channels. Two 50-pin connectors enable user-defined I/O expansion. The board includes silkscreened component pads for passive signal conditioning—voltage dividers, single-pole low-pass filters, and high-pass filters—without requiring external modifications. Dimensions are 7.9 × 4.9 × 1.725 inches.
Technical Specifications
• Analog Input Channels: Up to 16 single-ended (SE) or 8 differential channels from host DAQ
• BNC Connectors: 24 total
• User-Defined I/O: Two 50-pin connectors
• Power Supply: +5 VDC, 12 mA typical, 750 mA maximum
• Signal Conditioning: Silkscreened footprints for resistors and capacitors
– Key Features
• Supports mixed analog and digital signal types on a single board
• Pre-laid component locations eliminate breadboarding for common filters and dividers
• Compact form factor (7.9 × 4.9 × 1.725 inches) fits standard benchtop setups
• Low power consumption (12 mA typical operation)
• Two user-configurable I/O channels for custom signal routing
– Typical Applications
• Data acquisition and analog signal measurement in laboratory environments
• Multi-channel sensor signal conditioning and distribution
• Educational demonstrations of filter and analog signal processing circuits
• Transducer interface for industrial test systems
– Compatibility & Integration
The BNC-2081 connects to National Instruments DAQ boards including Lab-LC, Lab-NB, Lab-PC, and Lab-PC+ series hardware. Compatible with Windows and macOS operating systems. Available as board-only (part 181635-01) or as kit with cable (776599-90). Member of the BNC-208X breakout board family.
