The Measurement Computing PCIM-DAS1602/16 is a PCI bus-compatible data acquisition board delivering 16-bit analog input, dual 12-bit analog outputs with burst mode, and 32 programmable digital I/O lines. Built for industrial measurement, laboratory instrumentation, and process control, it combines switch-selectable single-ended and differential analog channels with flexible output ranges and extensive digital monitoring capability.
Technical Specifications
Analog Input
• 16-channel A/D converter (LTC1605CSW), 16-bit resolution
• 16 single-ended or 8 differential channels, software-selectable
• Maximum throughput: 100 kHz; conversion time: 10 µs max
• Input ranges: ±10 V, ±5 V, ±2.5 V, ±1.25 V (bipolar); 0–10 V, 0–5 V, 0–2.5 V, 0–1.25 V (unipolar)
• Input impedance: ≥10 MΩ
• CMRR @ 60 Hz: −100 dB typical, −80 dB minimum
• Input leakage: ±3 nA max
• Absolute maximum input voltage: +55/−40 V with fault protection
• Typical accuracy: ±2.3 LSB; absolute accuracy: ±5.0 LSB
• Integral linearity: ±0.5 LSB typical, ±3.0 LSB max
• Differential linearity: ±0.5 LSB typical, ±2.0 LSB max
• Total board error guaranteed ≤ ±5 LSB by factory test
Analog Output
• 2 DACs, 12-bit resolution each
• Output ranges: −5 to +5 V (factory-configured); 0–5 V, 0–10 V, ±5 V, ±10 V via onboard reference
• External reference input available for custom ranges (0–10 V)
• Burst mode: software-selectable, 10 µs interval
Digital I/O
• 32 programmable lines (82C55 type)
• Output drivers: 74LS244, reset to LOW
• Input type: 74LS373 with 10 kΩ pull-up resistors
– Key Features
• Trimmable gain and offset errors via potentiometer
• Switch-selectable input configurations for single-ended and differential measurements
• Dual burst-mode D/A converters for flexible analog signal generation
• On-board precision voltage reference with multiple selectable ranges
• 1024-sample FIFO for data buffering
– Typical Applications
Process monitoring, test automation, multi-channel signal acquisition, industrial control systems, laboratory data logging, sensor interfacing, and precision analog output generation.
– Compatibility & Integration
PCI bus interface. Operates with standard measurement and control software supporting analog I/O and digital line management.
