Precision Monolithics, Inc. also known as PMI, was an American company based in Santa Clara, California, that developed and produced mixed signal and linear integrated circuits (ICs).

Jim Grugan from Fairchild joined shortly after incorporation as vice president of administration, responsible for finance, facilities and purchasing.

Immediately after financing and incorporation, they offered founder stock and hired IC designers George Erdi from Fairchild and Dan Dooley from TRW Microelectronics.

[1] He recruited his thin film technician with precision resistor fabrication skills that were essential for improving the accuracy of DACs, which became the biggest-selling type of product that helped launch the company.

In March 1970, during the IEEE Annual Convention in New York, PMI caused a major stir in engineering circles by introducing the aimDac100, the first 10-bit 2-chip DAC in a DIP semiconductor package.