The Measurement Computing / Data Translation DT2801/DT5713/PGH is a data acquisition board for laboratory, industrial, and research applications. It combines analog and digital I/O capabilities with programmable gain conditioning and onboard intelligence, delivering flexible data collection and control on IBM PC/XT/AT systems.
Technical Specifications
Analog Input
• 12-bit or 16-bit resolution
• 16 single-ended or 8 differential input channels
• Throughput: 13.7 kS/s (DT2801/DT5713/PGH model)
• Programmable Gain High (PGH): Software-selectable gains of 1, 2, 4, and 8 with selectable ranges of 0 to 1.25V, 2.5V, 5V, 10V, and bipolar ranges ±1.25V, ±2.5V, ±5V, ±10V
• Programmable Gain Low (PGL): Software-selectable gains of 1, 10, 100, and 500 with full-scale ranges from 20 mV to 10V
Analog Output
• 12-bit resolution
• Two independent DAC channels
• Independent or simultaneous update capability
Digital I/O
• 16 TTL-level lines
• Configurable as two 8-bit ports for independent read/write or simultaneous operation
Onboard Microprocessor
• Interfaces to IBM PC Bus
• Manages Command, Status, Data In, and Data Out registers
• Handles timing and error-checking functions
Programmable Clock
• Pacer clock for Block mode A/D and D/A conversions
• Supports DMA data transfers
• Software or external trigger initiation
– Key Features
• Analog circuitry in cold-rolled steel module for RFI/EMI noise reduction
• Onboard DC/DC converter isolates analog circuits from computer +5V supply
• Flexible input range selection via software
• Support for 0 to 20 mA current loop inputs with external shunts
• Optional signal conditioning with transient and common-mode isolation (DT6700 series: ±1500V transient, ±250V common mode)
– Typical Applications
Data logging, process control, sensor monitoring, and automated test systems requiring mixed-signal I/O with programmable gain and precision timing.
– Compatibility & Integration
IBM PC/XT/AT compatible. DMA-capable for high-speed block transfers. Supports external trigger synchronization for coordinated multi-board operation.
