NORWOOD, Mass. -- Ideal for optical networking systems, Analog Devices’ new family of high-density digital-to-analog converters (DACs) features the industry’s first 40-channel, 14-bit resolution, voltage-output DAC operating from a single 5 V power supply—the AD5380. A 32-channel version is available as well—the AD5382. The DACs’ high-channel count facilitates control of large numbers of wavelengths in small spaces, which is of great benefit to optical DWDM systems.Both devices contain an on-chip, low-drift reference, eliminating the need for an external reference IC, reducing cost and board space. The parts also include user-programmable offset and gain for digital range adjustment and system calibration. These DACs offer high accuracy and increased functionality, including a boost mode that allows the parts to achieve faster settling times and an /LDAC (load DAC) function that allows simultaneous update of all DAC outputs.The high-performance AD5380 and AD5382 provide rail-to-rail outputs that operate up to a maximum of 5 V. They contain a parallel interface and both SPI1 and I2C serial interfaces. The devices are pin-compatible with the rest of Analog Devices’ AD538x family, which includes: the AD5381 40-channel, 12-bit DAC and the AD5383, 32-channel, 12-bit DAC. Analog Devices also offers a 40-channel, 14-bit DAC, the AD5379, which is bipolar and operates from +5 V, +12 V, and –12 V supplies. Analog Devices Inc.