Analog Devices is introducing eight multi-channel monolithic digital-to-analog converters (DACs). Developed using Analog Devices’ iCMOS process technology, the new DACs combining up to 40 channels, high accuracy, and ±10V output range, in a 9 mm x 9 mm footprint. Programmable on-chip features, such as calibration registers (to compensate for signal errors) and automatic shutdown, ensure system reliability in harsh, high voltage industrial environments.
The AD5362 is a 8-channel DAC with bipolar voltage outputs, 16 bit differential nonlinearity (DNL) and 14-bit integral nonlinearity (INL). In addition, the new DAC 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. It also offers diagnostic features, including readback and packet error checking (PEC).
Additionally, the programmable output span of the AD5362 allows users to assign different voltage ranges to different output pins within a 20 V span (the nominal output range is ± 10 V). The converter also includes a temperature sensor, a thermal monitor mode, a voltage monitor multiplexer, and a power-down mode.
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 Multi-channel DAC
The AD5370 is a 40-channel DAC offering 16-bit DNL and 14-bit INL in a 9 mm x 9 mm package. The DAC offers user-programmable offset and gain registers for easier and more precise system calibration, as well as a programmable 20 V output span. 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. Furthermore, the AD5370 has two Vref pins and two offset DACs, enabling the user to set different output voltage ranges.
The AD536x and AD537x DACs are sampling now, with full production quantities available beginning June 2006.
