AD7847AQ

The AD7847AQ from Analog Devices is a complete dual 12-bit multiplying digital-to-analog converter (DAC) with integrated output amplifiers, belonging to the AD7837/AD7847 family. This device incorporates two independent laser-trimmed DACs capable of four-quadrant multiplication, enabling precise bipolar signal attenuation and gain control. A parallel data interface allows simultaneous update of both channels, supporting high-throughput applications, while the on-chip output amplifiers deliver monotonic performance and low offset drift. The component is supplied in a 24-lead ceramic dual-in-line package (CDIP) and is rated for the industrial temperature range of –40°C to +85°C.

Typical deployments include process control loops, automatic test equipment, programmable voltage sources, and motor drive tuning circuits where accurate, repeatable analog outputs are critical. The multiplying architecture also serves waveform generation and digitally controlled amplitude modulation in instrumentation and signal conditioning systems. From a procurement perspective, the ceramic package signals robust mechanical and thermal resilience suited for long-lifecycle aerospace, defense, and legacy industrial platforms. The AD7847AQ industrial-grade suffix denotes a temperature-tested unit without military screening, though the CDIP format aligns with high-reliability design practices. Design and supply chain teams should assess product change notifications and lifecycle status, as mature ceramic-packaged converters may be subject to limited availability, obsolescence risk, and minimum order constraints while still offering a preferred path for ruggedized or extended-temperature system requirements.