The Keithley KPCI-3102 is a PCI-bus data acquisition board engineered for low-gain analog input and output applications in test, measurement, process control, and automation systems. It delivers 12-bit analog input resolution at up to 225 kS/s throughput, configurable 16 single-ended or 8 differential input channels, 2 analog outputs with 16-bit resolution, 23 digital I/O lines, and 4 counter/timer channels.
## Technical Specifications
**Analog Input**
• 16 single-ended or 8 differential channels
• 12-bit resolution
• Configurable ranges: ±1.25 V, ±2.5 V, ±5 V, ±10 V (bipolar); 0–1.25 V, 0–2.5 V, 0–5 V, 0–10 V (unipolar)
• Gain settings: 1, 2, 4, 8
• Throughput: 225 kS/s maximum
• 1024-location channel-gain queue for non-sequential channel sampling with different gains
• Continuous paced and triggered acquisition modes
• Pre-trigger, post-trigger, and about-trigger support with external trigger capability
• Amp Low connection for pseudo-differential input referencing
**Analog Output**
• 2 channels, 16-bit resolution
• Output ranges: ±5 V, ±10 V, 0–5 V, 0–10 V
• Outputs initialize to 0 V at power-up
**Digital I/O**
• 23 total lines: two 8-bit ports (A, B) and one 7-bit port (C)
• Ports A and B combinable into a virtual 16-line port
• Scanning to 3 MHz
• Digital output drive: 12 mA sink, 15 mA source
**Counter/Timers**
• 4 channels, 16-bit resolution
• Event counting, one-shot/frequency output, frequency measurement
• Internal and external cascading support
## Key Features
• 68-pin Amp connector for I/O
• Software-configurable input ranges and gains
• Manual and automatic calibration utilities
• Bundled 32-bit DriverLINX drivers, TestPoint, LabVIEW VIs, ExceLINX, VisualSCOPE
## Typical Applications
Data acquisition, industrial control, sensor signal conditioning, frequency measurement, and multi-channel signal routing in laboratory and field deployments.
## Compatibility & Integration
PCI-bus interface. Operating temperature: 0°C to 70°C. Storage temperature: –25°C to 85°C. Relative humidity: up to 95% non-condensing. Board dimensions: 8.5 inches × 4.2 inches.
