NI PC-LPM-16 Multifunction I/O Board – Revised

The National Instruments PC-LPM-16 Revised is a compact multifunction I/O board for data acquisition and control applications in laboratory and portable computing environments. It delivers 16 analog input channels sampled at up to 50 kS/s with 12-bit ADC resolution, 8 lines each of TTL-compatible digital input and output, and counter/timer capabilities for precision timing control. The successive-approximation, self-calibrating analog front end provides ±35 V or ±45 V overvoltage protection with software-selectable gain configuration. With only 50 mA current draw at +5 VDC and 15 mA at +12 VDC, the board operates in a compact 111 mm × 107 mm form factor, making it ideal for integration into space-constrained systems.

– Technical Specifications

Analog Input
• 16 channels with 12-bit ADC resolution
• Successive-approximation, self-calibrating architecture
• Maximum sampling rate: 50 kS/s
• Overvoltage protection: ±35 V or ±45 V
• Software-selectable gain (Revised and PnP versions)

Digital I/O
• 8 TTL-compatible input lines
• 8 TTL-compatible output lines
• CMOS input not supported

Timers/Counters
• 2 independent 16-bit counter/timer channels
• Optional third channel in legacy configurations

Power & Physical
• Maximum current: 50 mA at +5 VDC, 15 mA at +12 VDC
• Data FIFO: 512 words
• I/O space: 16 bytes
• Connector: 50-pin D male ribbon cable
• Operating temperature: 0° to 70° C
• Storage temperature: -55° to 150° C
• Humidity: 5% to 90% non-condensing

– Key Features

• Plug-and-Play configuration eliminates manual jumper and switch settings
• 16-byte boundary alignment reduces resource conflicts
• Self-calibrating ADC ensures measurement accuracy without external calibration
• Low power consumption extends battery life in laptop-based systems
• 512-word FIFO enables sustained high-speed data streaming

– Typical Applications

• Laboratory instrumentation and data logging
• Portable DAQ systems on notebook computers
• Embedded control and monitoring applications
• Mixed-signal test and measurement platforms

– Compatibility & Integration

Supports NI-DAQ driver software, LabVIEW, and LabWindows/CVI programming environments. Compatible with National Instruments DAQ and SCXI hardware ecosystems. Operates in IBM PC/XT, AT, and PS/2 systems.