Analog Devices Inc. (ADI, Wilmington, MA) introduced eight multi-channel, monolithic, digital-to-analog converters (DACs) that pack a high concentration of analog signal processing performance in a single device to resolve design challenges in industrial and instrumentation applications. Developed using Analog Devices' patented iCMOS process technology, the new DACs extend the company's denseDAC™ family of high-density converters, combining up to 40 channels, high accuracy, and a ±10 V output range, in a 9 mm x 9 mm footprint.
The AD5362 denseDAC is an eight-channel DAC with bipolar voltage outputs, 16-bit differential nonlinearity (DNL), and 14-bit integral nonlinearity (INL). It incorporates individual user-programmable offset and gain registers per channel, enabling board designers to calibrate their systems and compensate for signal errors that may occur elsewhere in the signal chain. A 50 MHz SPI-compatible serial interface offers group addressing, facilitating fast updating of multiple DAC channels. The AD5362 is available in an 8 mm x 8 mm, 56-lead, LFCSP package. Other members of the pin-compatible AD536x family offer higher-channel (16-channel) or lower-resolution (14-bit) alternatives.
The AD5370 is a 40-channel DAC offering 16-bit DNL and 14-bit INL, providing the channel density and performance required by manufacturers of high-precision automated test equipment, optical networking, and industrial and instrumentation applications. Its 9 mm x 9 mm package offers a reduced footprint for cost-constrained and space-constrained applications without compromising throughput. In addition to a 50 MHz SPI-compatible serial interface, the new DAC offers user-programmable offset and gain registers for easier and more precise system calibration, as well as a programmable 20 V output span to provide flexibility in customizing voltage-output levels. For even greater addressing flexibility, the device is divided into five groups of eight DACs. A separate input pin is also provided for each group to enable remote ground sensing.
The AD536x and AD537x DACs are sampling now, with full production quantities available beginning June 2006. Prices range from $19.50 to $62.90 for 1,000-piece quantities.
