New precision digital-to-analog converters (DACs) are said to significantly improve the reliability of industrial process control applications in extreme temperatures or high compliance voltages.
The offering includes four 12-to-16bit single-channel DACs that integrate user-programmable current source and voltage output. Typical applications are in 4-20-mA transmitters and analog I/O systems. The products include the AD5422, AD5420, AD5412, and AD5410. The AD5422 single-channel 16-bit DAC operates from a single 12 to 48-V supply, or dual ±12 V to ±24 V supplies. The output configuration is software selectable from options of 5, 10, ±5 and ±10 V in voltage mode and 4-20, 0-20, and 0-24 mA in current mode. The AD5412 is a pin-compatible single-channel 12-bit current source and voltage output DAC. The AD5420 (16-bit) and AD5410 (12-bit) operate in current source mode only. With a single 12 to 60-V supply, their output configuration is software selectable from 4-20, 0-20, and 0-24 mA options. All of the devices are housed in 24-lead TSSOP (thin-shrink small-outline) and 40-lead LFCSP (lead-frame chip-scale) packages.
Analog Devices, Inc., 804 Woburn St., Wilmington, MA 01887, (800)-ANALOGD, analog.com