AD7533CQ

The AD7533CQ from Analog Devices is a 10-bit multiplying digital-to-analog converter (DAC) housed in a hermetic ceramic dual-in-line package (CDIP), part of the AD7533 family of low-cost CMOS converters designed for four-quadrant multiplication and precision analog signal processing.

Based on a thin-film on CMOS architecture, this DAC provides monotonic performance across its operating temperature range and consumes minimal power, a characteristic of the AD7533 family. The multiplying function allows the reference input to accept wide-range AC or DC signals, yielding a true product of the digital code and the applied reference voltage at the output. The CDIP package ensures high thermal stability and environmental resistance, suited for industrial control systems, military avionics, and aerospace guidance electronics where hermetic sealing prevents moisture ingress. Typical end uses include digitally controlled gain and attenuation stages, waveform synthesis in automatic test equipment (ATE), programmable power supplies, and servo loop calibration circuits. Procurement engineers should note that the CQ suffix denotes a commercial temperature grade ceramic package, distinct from military-grade variants such as the “/883” or “MIL” prefixed parts. The AD7533 family is a mature product line; obsolescence risks and extended lead times are relevant considerations. Verification of traceable supply chain provenance and authenticity testing are standard practice when sourcing these devices for high-reliability systems.