The Measurement Computing / Data Translation DT3003 is a high-performance PCI-bus data acquisition board engineered for applications demanding continuous, gap-free analog-to-digital and digital-to-analog conversion. It delivers up to 330 kS/s throughput with simultaneous multi-channel acquisition, supporting 64 single-ended or 32 differential analog input channels on a single board.
Technical Specifications
Analog Inputs
• 64 single-ended (SE) or 32 differential (DI) channels
• 12-bit A/D resolution with 11.5-bit ENOB
• Input ranges: ±1.25 V, ±2.5 V, ±5 V, ±10 V, 0–1.25 V, 0–2.5 V, 0–5 V, 0–10 V
• High-gain versions available for low-level measurements (thermocouple, strain gauge)
• Integral nonlinearity (max): ±0.03 %FSR
Analog Outputs
• 2 DAC channels at 200 kS/s
• Output ranges: ±5 V, ±10 V, 0–5 V, 0–10 V
• Output impedance: max 0.1 Ω
• Capacitive drive: 0.004 µF typical without oscillations
• Short-circuit protection to analog common
• Power-on settling: max ±10 mV
Data Throughput & Acquisition
• Maximum throughput: 330 kS/s
• 256-location onboard channel-gain list for flexible, non-sequential channel selection
• Continuously paced and triggered scan modes with post-trigger, pre-trigger, and about-trigger acquisition
• Retriggering up to 256 times per trigger; up to 256 kilosamples per trigger
Clocking & Triggering
• Two 24-bit counter/timers with 20 MHz oscillator
• Digital (TTL) or software-initiated trigger sources
Digital I/O & Counters
• 8 digital I/O lines with 12 mA sink / 15 mA source capability
• High-speed dynamic inputs support time-stamped events up to 3 MS/s (Ports A and B, up to 16 lines)
• Four 16-bit user counter/timers for event counting, frequency measurement, and waveform generation
• Cascading support via software or external connections
– Key Features
• Gap-free simultaneous A/D and D/A conversion at full rated throughput
• Flexible channel-gain list enables arbitrary acquisition sequences with independent gain settings per channel
• High-speed digital input time-stamping synchronizes discrete events with analog conversions
• Counter/timers support cascading for extended counting ranges
– Typical Applications
Dynamically configured multi-channel data logging, triggered waveform capture, real-time event monitoring with time-synchronized digital inputs, precision analog control loops, and frequency measurement systems.
– Compatibility & Integration
PCI-bus compatible architecture for standard desktop and industrial computer integration.
