The NI PXI-6143 is a high-performance multifunction DAQ module for PXI systems, delivering simultaneous sampling across 8 differential analog input channels at 250 kS/s per channel. Part of the NI S Series family, it features a dedicated ADC per channel architecture that enables superior dynamic performance in demanding measurement environments. The module integrates 16-bit analog inputs, 8 TTL/CMOS-compatible digital I/O lines, and two 24-bit counter/timers with a 20 MHz base clock. Digital triggering, DMA support, and a 2,046-sample FIFO buffer enable efficient data capture for applications requiring fast, transient signal analysis.
Technical Specifications
Analog Input
• 8 differential channels, 16-bit resolution
• 250 kS/s maximum sample rate per channel (simultaneous sampling)
• ±5 V input range, DC coupling
• 3.613 µV absolute accuracy; ±50 ppm frequency accuracy (internal time base)
• 2,046-sample FIFO buffer
Digital I/O
• 8 lines, TTL/CMOS compatible
• Input: 2.2 to 5 V; Output: up to 0.4 V
Counter/Timers
• 2 counters, 24-bit resolution
• 20 MHz base clock (±0.01% accuracy)
• 20 MHz maximum source frequency; 10 ns minimum pulse duration
• TTL/CMOS compatible with edge-detect mode support
Data Transfer
• DMA, interrupt-driven, and programmed I/O modes
Physical & Environmental
• 15.5 cm × 10.6 cm (68-pin VHDCI connector)
• Operating: 0 to 50 °C, 10–90% RH (noncondensing)
• Storage: -20 to 70 °C, 5–95% RH (noncondensing)
• 30 g operational shock (11 ms half-sine); 0.3 grms vibration (5–500 Hz)
Power
• +5 VDC @ 40 mA; +3.3 VDC @ 140 mA; +12 VDC @ 150 mA; –12 VDC @ 80 mA
– Key Features
• Simultaneous sampling across all analog channels eliminates channel-to-channel skew
• Dedicated ADC per channel for higher performance than multiplexed alternatives
• Digital triggering for precise event synchronization
• Multiple data transfer pathways optimize throughput and latency
– Typical Applications
• High-energy physics instrumentation
• Ultrasonic and sonar testing
• Ballistics and transient signal capture
• Multi-axis control systems
– Compatibility & Integration
NI-DAQmx driver support enables integration with NI PXI platforms and S Series modules. SCXI parallel-mode compatibility available with NI-DAQmx 7.4 or later.
