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The AD664BE is a monolithic integrated circuit containing four complete 12-bit voltage-output digital-to-analog converters (DACs). It features double-buffered input latches and a data readback function for all DAC operations. The device utilizes a single microprocessor-compatible I/O port for all read and write commands, supporting parallel interface communication. Designed for surface mount applications, it operates with an analog supply voltage range of 11.4 V to 16.5 V and a digital supply of 5 V. Key performance specifications include a settling time of 10 µs, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±1 LSB.
The AD664BE belongs to the AD664 family of high-performance monolithic DACs from Analog Devices. This series integrates multiple converter channels to reduce board space and simplify system design compared to discrete solutions. The BE suffix indicates a specific package variant within the broader AD664 product line, which also includes DIP packages like the AD664BD.
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pin compatibility and electrical specifications against alternative quad-channel 12-bit DACs if sourcing constraints exist.