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The AD669AR-REEL is a monolithic 16-bit Digital-to-Analog Converter (DAC) from Analog Devices, utilizing the BiMOS II process to integrate high-precision bipolar linear circuitry with low-power CMOS logic. This device features an on-board buried Zener reference and an output amplifier, eliminating external component requirements for basic operation. It offers 61 LSB integral linearity error and maintains 15-bit monotonicity over temperature. The unit supports microprocessor-compatible parallel input via double-buffered latches and operates with a fast 40 ns write pulse. Designed for unipolar or bipolar output configurations, it exhibits low glitch energy of 15 nV-s and total harmonic distortion plus noise (THD+N) of 0.009%.
The AD669AR-REEL belongs to the AD669 DACPORT family, which combines digital and analog functions on a single chip. The 'AR' suffix indicates an industrial temperature range and SOIC package, while '-REEL' denotes tape-and-reel packaging for automated assembly. This part is distinct from other ADI DACs by its specific integration of the reference and amplifier within a 16-bit serial/byte compatible architecture.