AD7247ATQ

The AD7247ATQ is a dual 12-bit digital-to-analog converter from Analog Devices’ LC2MOS DACPORT family, integrating two complete voltage-output DAC channels, on-chip output buffer amplifiers, and a buried-Zener voltage reference within a ceramic dual-in-line package (CDIP). It accepts parallel-loaded 12-bit data for each channel and supports independent or simultaneous updating of the outputs via separate chip-select lines. Built on a linear-compatible CMOS process, the device maintains monotonic performance over its full temperature range and includes internal scaling resistors that allow both unipolar and bipolar output spans without external precision components. The multiplying architecture also permits AC signal attenuation with a wide bandwidth at the reference input, giving the converter utility in variable-gain and waveform generation circuits.

Typical deployments span industrial process control, automatic test equipment, avionics, and defense-grade flight systems where multiple precision analog outputs must operate in electrically noisy or thermally extreme environments. The CDIP package and the extended industrial or military temperature range associated with the “TQ” suffix make the AD7247ATQ appropriate for high-reliability applications that demand robust hermetic sealing and long-term stability. From a procurement standpoint, this is a mature mixed-signal component and may carry obsolescence risk as manufacturers shift fabrication capacity. Design engineers should verify the active product lifecycle status, plan for extended-temperature or /883-screened variants if required by system qualifications, and source through authorized channels to mitigate the risk of non-conforming or counterfeit devices in safety-critical designs.