Part Number: 779676-01

The National Instruments 779676-01, also known as the USB-6211, is a highly versatile multifunction I/O device designed for precision measurement and control applications. This device features 8 differential or 16 single-ended analog input channels, providing a 16-bit analog-to-digital conversion resolution. It supports a maximum sampling rate of 250 kS/s across both single-channel and multichannel operations, offering input voltage ranges of ±0.2 V, ±1 V, ±5 V, and ±10 V with DC coupling. The input impedance is less than 10 GΩ in parallel with 100 pF when powered on and operates at 1,200 Ω when off, with a minimal input bias current of ±100 pA, which ensures high accuracy and minimal signal interference.

The USB-6211 is equipped with 2 analog output channels, also utilizing a 16-bit digital-to-analog converter, with an identical maximum update rate of 250 kS/s. It has an output voltage range of ±10 V, low output impedance of 0.2 Ω, and an output current drive capability of ±2 mA, featuring overdrive protection rated at ±30 V. The device includes FIFO buffer memory that can hold up to 8,191 samples per channel, supporting USB Signal Stream and programmed I/O for efficient data transfer.

Powering the USB-6211 requires 400 mA at 4.5 V, with typical current consumption levels at no load estimated around 320 mA. The maximum inrush current rating is 500 mA, ensuring stability during startup. The device's compact design measures 16.9 cm × 9.4 cm × 3.1 cm (6.65 in. × 3.70 in. × 1.20 in.) and weighs 206 g (7.2 oz), making it suitable for various integration tasks. It features dual 16-position combicon I/O connectors, facilitating seamless communication with digital devices, establishing it as an essential tool for control and measurement tasks in diverse industrial applications.