The National Instruments PC-LPM-16 is a legacy multifunction I/O board for data acquisition and control applications on ISA-based systems. This 12-bit successive-approximation board delivers 16 analog input channels, 16 digital I/O lines, and timer/counter functionality at up to 50 kS/s sampling rate. Designed for voltage measurement, signal analysis, and device switching tasks, it provides TTL-compatible digital control with overvoltage protection to ±35 V or ±45 V.
– Technical Specifications
Analog Input
• 16 channels, 12-bit resolution
• Successive-approximation, self-calibrating ADC
• Maximum sampling rate: 50 kS/s
• Overvoltage protection: ±35 V or ±45 V
Digital I/O
• 16 total lines: 8 input, 8 output
• TTL-compatible logic levels
Timers/Counters
• 16-bit resolution
• 2 channels (PC-LPM-16/PnP) or 3 channels (standard PC-LPM-16, with 1 dedicated to analog input)
Power Consumption
• +5 VDC: 50 mA maximum
• +12 VDC: 15 mA maximum
Environmental
• Operating temperature: 0° to 70° C
• Storage temperature: -55° to 150° C
• Humidity: 5% to 90% non-condensing
– Key Features
• Non-Plug and Play ISA (PC-LPM-16) or Plug and Play ISA (PC-LPM-16/PnP) interface
• I/O space: 16 bytes (PnP) or 32 bytes (legacy)
• Jumper-selectable IRQ and gain (standard) or software-configurable (PnP variant)
• Compact form factor for laboratory and embedded applications
– Typical Applications
Voltage and temperature measurement, chromatography analysis, DC signal acquisition, frequency/time measurement, pulse generation, external device switching via TTL control, interrupt generation.
– Compatibility & Integration
Supported by NI-DAQ driver software, LabVIEW, and LabWindows/CVI. Compatible with National Instruments DAQ and SCXI hardware. Product status: announced obsolete; limited availability through third-party suppliers.
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