AD768ARZ

The AD768ARZ is a 16-bit, 30 MSPS digital-to-analog converter (DAC) manufactured by Analog Devices Inc. on their Advanced Bipolar CMOS (ABCMOS) process. This DAC offers excellent AC and DC performance, including a linearity of 1/2 LSB DNL and 1 LSB INL at 14 bits, and a fast settling time of 25 ns to 0.025% full-scale.

This device features a segmented current source architecture with a proprietary switching technique to minimize glitch energy and maximize dynamic accuracy. It includes edge-triggered input latches and a temperature-compensated bandgap reference, providing a complete monolithic DAC solution. The AD768ARZ is a current-output DAC with a nominal full-scale output current of 20 mA and a 1 kΩ output impedance. Differential current outputs are provided for single-ended or differential applications.

Key specifications include a 30 MSPS update rate, 16-bit resolution, SFDR of 86 dBc at 1 MHz output, and THD of 71 dBc at 1 MHz output. It has a low glitch impulse of 35 pV-s and typically dissipates 465 mW of power. The operating temperature range is -40°C to 85°C. The AD768ARZ is supplied in a 28-SOIC package with surface mount mounting type.

Applications for the AD768ARZ include arbitrary waveform generation, communications waveform reconstruction, and vector stroke display. It supports both external and internal reference types and features a parallel data interface.