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The AD664AD-UNI 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 channels. Operations are managed through a single microprocessor-compatible I/O port, supporting parallel interface protocols. The component is designed for high-density applications requiring multiple independent analog outputs from a single chip.
The AD664AD-UNI belongs to the AD664 series of quad 12-bit DACs manufactured by Analog Devices. This specific part number denotes a version compliant with MIL-STD-883 standards, indicating suitability for military or aerospace-grade environments. It shares core architectural features with other AD664 variants but differs in packaging and qualification specifications.
Direct replacements within the AD664 family include AD664JPZ, AD664KPZ, and AD664SD-BIP. Note that package types vary; the AD664AD-UNI typically uses a ceramic DIP package, whereas JPZ/KPZ use PLCC and SD uses CDIP. Verify pinout compatibility and thermal requirements when substituting.