DAC SPI: Wiring of AD1860
·703 words·4 mins·
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The AD1860 DAC IC is correctly wired and produces a valid analog output. A reference schematic from the early 1990s is used to identify non-critical components, and a full-scale sawtooth waveform (±3 V) is generated on one channel using an Arduino. The hardware setup functions as expected; the remaining task is implementing a correct SPI interface capable of handling 18-bit transfers.