NI USB-6259 16-Bit Multifunction DAQ - Mass Termination

The NI USB-6259 is a 16-bit multifunction data acquisition device that combines analog input, analog output, digital I/O, and counter/timer capabilities in a single USB 2.0 interface. It supports up to 32 single-ended or 16 differential analog input channels with sample rates to 1.25 MS/s per channel (1 MS/s aggregate), four analog output channels with update rates to 2.86 MS/s, and 48 TTL/CMOS digital I/O lines with hardware-timed operation up to 1 MHz. The device integrates two 32-bit counter/timers running at 80 MHz, analog and digital triggering, and NI-MCal technology for enhanced accuracy.

Mass termination connectivity via connector part number 779695-01 enables efficient integration into measurement systems.

Technical Specifications

• 32 single-ended or 16 differential channels


• 16-bit resolution


• Maximum sample rate: 1.25 MS/s (single channel), 1.00 MS/s (multi-channel aggregate)


• DC input coupling with ranges ±10 V, ±5 V, ±2 V, ±1 V, ±0.5 V, ±0.2 V, ±0.1 V


• Maximum working voltage: ±11 V relative to AI GND


• Input impedance: >10 GΩ parallel with 100 pF (device on); 820 Ω (device off)


• Input bias current: ±100 pA


• CMRR (DC to 60 Hz): 100 dB


• Small signal bandwidth (-3 dB): 1.7 MHz


• Adjacent channel crosstalk (100 kHz): -75 dB; non-adjacent: -90 dB to -95 dB


• Overvoltage protection: ±25 V (device on), ±15 V (device off) for up to four pins


• Input current during overvoltage: ±20 mA max per pin


• Input FIFO: 4,095 samples; Scan list memory: 4,095 entries


• Timing accuracy: 50 ppm of sample rate; timing resolution: 50 ns Analog Output


• 4 channels, 16-bit resolution


• Maximum update rates: 2.86 MS/s (1 channel), 2.00 MS/s (2 channels), 1.54 MS/s (3 channels), 1.25 MS/s (4 channels)


• DC output coupling, 0.2 Ω output impedance


• Output current drive: ±5 mA Digital I/O & Timing


• 48 TTL/CMOS digital I/O lines; up to 32 hardware-timed at 1 MHz


• Two 32-bit counter/timers at 80 MHz


• Analog and digital triggering support

Key Features

• USB 2.0 connectivity (hi-speed and full-speed modes)


• NI-MCal technology for measurement accuracy


• Mass termination connector for rapid integration


• Wide input voltage ranges optimized for low-signal acquisition


• High input impedance minimizes loading effects

Typical Applications

• Multi-channel sensor monitoring and industrial control


• Signal generation and waveform synthesis


• Precision timing and counting operations


• Mixed-signal test and measurement systems

Compatibility & Integration Windows 2000, XP, and Vista compatible. Mass termination connector (779695-01) standard.