AD768是一款16位、高速数模转换器(DAC)，具有出色的交流与直流性能。它采用ADI公司先进的双极性CMOS (ABCMOS)工艺制造，集双极性晶体管的速度、激光调整薄膜电阻的精度与CMOS逻辑的效率三重优势于一体。分段电流源架构与专有开关技术相结合，可减小突波能量，使动态精度达到最大。该器件还集成边沿触发式输入锁存器和一个温度补偿带隙基准电压源，可提供一个完整的单芯片DAC解决方案。
The AD768 is a current output DAC with a nominal full-scale output current of 20 mA and an output impedance of 1 kΩ. It provides differential current output to support single-ended or differential applications. The current output can be connected directly to the output or sent to the sum point of the high-speed amplifier to provide a buffered voltage output. In addition, the differential output can be interfaced with a transformer or differential amplifier.
The on-chip reference and control amplifier are configured for maximum accuracy and flexibility. The AD768 can be driven by an on-chip reference or by a variety of different external references, depending on the external resistor. With an external capacitor, users can make the best compromise between reference voltage bandwidth and noise performance.
The AD768 operates from a ±5V supply with a typical power consumption of 465 mW and is available in a 28-pin SOIC package with an industrial temperature range.