AD9781BCPZ

AD9781 is a pin-compatible, high dynamic range, dual digital-to-analogue converter (DAC) with 14bit resolutions, and sample rates of upto 500MSPS. This device includes specific features for direct conversion transmit applications, including gain and offset compensation, and they interface seamlessly with analogue quadrature modulators such as the ADL5370. A proprietary, dynamic output architecture permits synthesis of analogue outputs even above Nyquist by shifting energy away from the fundamental and into the image frequency. Full programmability is provided through a serial peripheral interface (SPI) port. Some pin-programmable features are also offered for those applications without a controller. It is used in application such as wireless infrastructure, W-CDMA, CDMA2000, TD-SCDMA, WiMAX, wideband communications, LMDS/MMDS, point-to-point, RF signal generators, arbitrary waveform generators etc.

• Low noise and intermodulation distortion
• Spurious free dynamic range is 78dBc typical
• Innovative switching output stage permits usable outputs beyond Nyquist frequency
• LVDS inputs with dual-port or optional interleaved single port operation
• Full-scale output current is 20.2mA typical
• Internal 1.2V precision reference voltage source
• Operates from 1.8V and 3.3V supplies
• Power dissipation is 315mW
• Operating temperature is -40°C to +85°C
• Package style is 72-lead LFCSP-VQ

附註

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party