Mixed Signal/Analog

Tiny 16-bit Quad DAC

27th February 2006
ES Admin

Analog Devices has announced what is believed to be the industry’s first 16-bit quad DAC (digital-to-analog converter) in a compact 3 mm x 3 mm, 10-lead LFCSP (lead frame chip scale package) – a development that will free up to 70% more board space.

The new 16-bit quad DAC is one of eight new dual and quad devices that extend ADI’s popular line of nanoDAC® converters in small packages. Unlike existing solutions in other packaging that require an external reference, the new nanoDAC devices lower system cost by integrating an on-chip reference and providing the industry’s smallest footprint.

The flagship product – the AD5664R 16-bit quad DAC – offers very low power consumption (5mW at 5V including reference), making it an ideal choice for designers of industrial and communications products such as PLC cards, analog I/O boards and base stations which require high resolution in the minimum board space. It integrates four buffered 16-bit D/A converters in addition to an on-chip 1.25-V, 5-ppm per degree C reference.

In addition to the AD5664R, ADI has introduced seven nanoDAC converters that offer pin compatible 12-bit to 16-bit resolution in dual and quad configurations with and without on-chip references: the quad AD5624, AD5624R, AD5644R and AD5664, and the dual AD5643R, AD5663 and AD5663R. These new devices add to ADI’s nanoDAC portfolio of smallest package devices, which also features the world’s smallest DAC in SC70 package.

All devices incorporate a power-on reset and a per-channel power-down mode that, in the quad-channel devices, reduces the current consumption of the device to 480 nA at 5 V. In addition, the dual channel devices offer hardware LDAC and CLR functionality and the on-chip precision output amplifier allows rail-to-rail output swing to be achieved, maximising dynamic range and enabling the device to deliver the performance needed in control and level-setting applications.

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