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National Instruments 777516-01 Multifunction I/O Device

The National Instruments 777516-01, often referred to as the PCI-6033, is a versatile multifunction I/O device designed to meet a variety of data acquisition (DAQ) needs. Applications for this device are very diverse; they include research, design verification/testing, factory testing, and laboratory automation. This device, which has 64 single-ended or 32 differential analog input channels, provides a great deal of flexibility because each channel's configuration may be changed via software. It utilizes a type A/D converter for successive approximation, guaranteeing a resolution of 16 bits, or one part in 65,536. With a maximum single-channel sampling rate of 100 kS/s guaranteed, the 777516-01 provides precise and dependable data for a range of measurement requirements. 

Eight digital I/O channels on the device provide strong digital interface capabilities and are compatible with 5 V TTL/CMOS. To enhance its usefulness in intricate timing and control applications, the 777516-01 is equipped with two 24-bit up/down counter/timers and a 4-bit frequency scaler. There are several analog and digital trigger options supported by this multifunction I/O device. Start, reference, pause, and stop triggers for analog input as well as start and pause triggers for analog output can all be accomplished with analog triggers. Significantly expanding the range of possible applications, these triggers can also act as sources and gates for the counter/timers.

The 777516-01 delivers constant performance across the whole working temperature range thanks to its integrated calibration reference of 5.000 V (±1.0 mV). The EEPROM retains precision and dependability by storing this calibration reference value. For best results, warm up for fifteen minutes, and calibrate every year using an external calibration reference between 6.999 and 9.999 V.

With the guarantee of no missing codes over the 16-bit range, the device's analog input characteristics tout a relative accuracy of ±0.75 LSB typ, ±1 LSB max, and a differential nonlinearity (DNL) of ±0.5 LSB typ, ±1 LSB max.
Users can integrate SCC or SCXI signal conditioning modules for sensor and high-voltage measurements to further expand its capabilities. The NI-DAQmx driver and configuration tool make the 777516-01 user-friendly even with its sophisticated features by streamlining the setup and measurement procedures.