AD7245ATQ

The AD7245ATQ is a single-channel, 12-bit multiplying digital-to-analog converter (DAC) manufactured by Analog Devices. Built on an R-2R thin-film resistor ladder architecture, the device integrates an on-chip output amplifier and a buried Zener voltage reference, delivering a buffered voltage output via a parallel data interface. Its monolithic design ensures 12-bit monotonicity and tight differential nonlinearity over the full military temperature range of –55°C to +125°C. The “A” grade provides enhanced linearity, with integral nonlinearity typically held to ±1 LSB maximum. Housed in a 24-pin ceramic dual-in-line package (CDIP), the DAC offers hermetic sealing and inherent resistance to moisture and contamination, suiting extended-temperature and high-reliability environments.

Typical applications include precision analog control loops, avionics and guidance systems, industrial process controllers, automated test equipment, and medical instrumentation where a stable, low-drift voltage output is essential. The AD7245ATQ designation indicates a ceramic package and military temperature grade, but it does not carry the “/883” suffix that denotes full MIL-STD-883 Class B screening; procurement engineers should verify whether off-the-shelf parts satisfy project qualification requirements or if supplementary screening is needed. As a mature through-hole product, this DAC may face constrained availability and eventual obsolescence. Designers sustaining legacy platforms or initiating long-lifecycle programs should coordinate with authorized distribution to confirm supply continuity and evaluate form-fit-function alternatives or next-generation DACs with surface-mount packaging.