The National Instruments PCI-6111 and PCI-6111E are simultaneous-sampling multifunction DAQ devices that combine analog input, analog output, and digital I/O in a single PCI card. Engineered for high-performance measurement and stimulus/response applications, these boards deliver synchronized acquisition and generation across multiple signal types with dedicated A/D converters per channel to enable true simultaneous sampling.
– Technical Specifications
Analog Input
• 2 pseudodifferential channels
• 12-bit resolution
• 5 MS/s per channel; 4 MS/s single-channel, 2.5 MS/s dual-channel maximum
• Configurable input ranges: ±200 mV to ±42 V
• DC and AC coupling available
• Overvoltage protection to ±42 V on all channels
• Dedicated 12-bit ADC per channel
Analog Output
• 2 voltage output channels
• 16-bit resolution
• 4 MS/s single-channel, 2.5 MS/s dual-channel maximum update rate
Digital I/O
• 8 lines, TTL/CMOS compatible
• Hardware-timed capability for synchronization with analog and timing functions
Counters
• 2 counters, 24-bit resolution
Memory and Data Transfer
• 2,048 sample FIFO buffer
• Supports interrupts, DMA, and programmable I/O
Synchronization
• RTSI bus for multi-device synchronization (up to 5 devices)
• Digital triggering
• Simultaneous analog input, output, and digital I/O capability
Connectors and Interface
• PCI bus, full-length module
• 68-pin male SCSI II connector
– Key Features
Dual dedicated ADCs enable true simultaneous sampling on both analog input channels without rate degradation. Configurable input ranges from ±200 mV to ±42 V accommodate small-signal sensors and high-voltage measurements. AC/DC coupling flexibility supports both transient and frequency-domain analysis. The RTSI bus synchronizes multiple cards for distributed measurement systems.
– Typical Applications
Stimulus/response testing, synchronized multi-channel data acquisition, mixed-signal measurements, and systems requiring correlated analog and digital timing.
– Compatibility & Integration
NI-DAQmx driver optimizes DMA transfers for minimal latency. Hardware-timed digital I/O integrates with analog channels and external clocks for phase-coherent mixed-signal applications.
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