The National Instruments PCI-6031E is a multiplexed data acquisition device for PCI bus systems, integrating analog input, analog output, digital I/O, and timing functions. It supports up to 64 single-ended or 32 differential analog inputs with 12-bit and 16-bit ADCs, 2 analog outputs, 8 TTL-compatible digital I/O lines, and two 24-bit counter/timers. The device delivers analog input sampling rates up to 1.25 MS/s with 50 ns timing resolution via the DAQ-STC controller, making it suitable for data logging, automated testing, process control, and sensor measurements.
Technical Specifications
Analog Inputs
• Up to 64 single-ended or 32 differential channels
• 12-bit and 16-bit ADC options
• Up to 15 analog input signal ranges including sub-50 mV signals
• Referenced single-ended (RSE) mode for floating sources
• Clock, start, stop, and gate trigger support
• Temperature drift protection: <0.0006% of reading per °C
• Onboard self-calibration and temperature sensor
Analog Outputs
• 2 channels with 12-bit or 16-bit resolution
• Maximum output speed: 1 MS/s
• Unipolar or bipolar output configuration
Digital I/O
• 8 TTL/CMOS-compatible lines
• Configurable handshaking control via Port C
Counters/Timers
• Two 24-bit general-purpose counter/timers
• 50 ns maximum timing resolution
• Support for buffered pulse generation and equivalent time sampling
Performance
• Analog input sampling: up to 1.25 MS/s
• Analog output speed: up to 1 MS/s
• NI MITE bus interface with scatter-gather DMA for concurrent I/O
– Key Features
• DAQ-STC dedicated timing controller managing analog input, analog output, and counter/timer functions
• Multi-device synchronization via RTSI or PXI trigger bus
• Programmable function input (PFI) lines for digital and timing signal routing
• Onboard temperature monitoring for thermal management
– Typical Applications
• Automated test systems and measurement instrumentation
• Data logging and sensor-based monitoring
• Process control with high-speed timing requirements
• Buffered waveform generation and pulse train creation
– Compatibility & Integration
PCI bus interface. Supports multi-device synchronization through RTSI and PXI trigger bus architectures.
