Keithley DAS-1802ST-DA 12-Bit Multifunction I/O Board

The Keithley DAS-1802ST-DA is a 12-bit multifunction I/O board engineered for real-time data acquisition and process control across laboratory, industrial automation, and monitoring environments. This PCI/ISA/PCMCIA form-factor instrument combines configurable analog input and output channels with discrete digital I/O, delivering continuous, gap-free acquisition at sampling rates up to 333 kS/s aggregate.

Technical Specifications Analog Input

16 single-ended or 8 differential channels

12-bit resolution

Maximum aggregate sampling rate: 333 kS/s (312.5 kS/s multi-channel)

Programmable gains: 1, 2, 4, 8

Input ranges: ±10 V, ±5 V, ±2.5 V, ±1.25 V, 0–10 V, 0–5 V, 0–2.5 V, 0–1.25 V

1024-word FIFO buffer

256-position gain-channel queue for rapid range switching Analog Output

2 channels, 12-bit resolution

Output ranges: ±5 V, ±10 V (software programmable)

D/A update speed: 500 kS/s

Output drive current: ±15 mA max Digital I/O

4 digital inputs and 4 digital outputs

50-pin D-type connector interface

Key Features Programmable burst-mode sampling emulates simultaneous sample-and-hold across multiple channels. Pre-, post-, and about-triggering modes enable flexible data capture around events of interest. The 256-entry gain-channel queue eliminates settling delays when switching between different input ranges and gains during high-speed acquisition.

Typical Applications Multi-channel sensor monitoring in industrial process control, waveform capture and transient analysis in research laboratories, precision analog control loops, and mixed-signal test automation.

Compatibility & Integration Optimized for Windows operating systems. Supplied with 32-bit DriverLINX® drivers and application software including ExceLINX™, VisualSCOPE™, TestPoint™, and LabVIEW™ support.