The Keithley KPCI-3107 is a high-performance PCI bus data acquisition board delivering 16-bit analog input, 32-line digital I/O, and counter/timer functionality for industrial measurement and control systems. Built for demanding applications, it configures channels individually to match diverse sensor types and measurement ranges, supporting temperature, voltage, vibration, pressure, and strain analysis alongside analog stimulus-response testing and relay control.
## Technical Specifications
### Analog Inputs
• 16-bit resolution
• 16 single-ended or 8 differential channels (software-configurable; mixed modes supported)
• 12 programmable gains (1, 2, 4, 8, 10, 20, 40, 80, 100, 200, 400, 800) per channel
• 24 total software ranges (12 unipolar, 12 bipolar)
• Input overvoltage protection: ±35V continuous (powered), ±15V continuous (unpowered)
• Input impedance: >1GΩ parallel with ≤200pF
• Input bias current: ±1nA typical @ 25°C
• Accuracy: 0.021% of reading ± 1.540mV @ 23°C
• Offset temperature coefficient: 310µV/°C typical
• Gain temperature coefficient: 60ppm/°C typical
• Integral nonlinearity: ±1.5 LSB max; Differential: ±1 LSB max
• Monotonicity: 16-bit guaranteed
• Per-range factory calibration with NIST traceability; onboard memory stores offset and gain correction values
• Autozero function eliminates measurement drift
### Digital I/O
• 32 lines
• High-current outputs: 64mA sink, 15mA source; capable of driving indicators and relays directly
### Counter/Timers
• Three 16-bit counters (CT0, CT1, CT2) based on 82C54 architecture
## Key Features
• Individual per-channel range and gain programming
• Mixed differential and single-ended input configuration
• Automatic calibration correction applied during range changes
• Direct relay and indicator drive capability from digital outputs
## Typical Applications
• Temperature and voltage measurement
• Vibration, pressure, and strain analysis
• Analog stimulus-response testing
• Relay control and automation
## Compatibility & Integration
Standard PCI bus architecture for direct integration into PC-based test systems.
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