Dual 8-bit DAC in a SOT-23-8 — what that means for the BOM
The MAX5222EKA+T is a dual 8-bit voltage-output DAC from Analog Devices, built around an R-2R ladder architecture. It packs two independent converters into a SOT-23-8 package, each with a buffered voltage output that settles in 10 µs typical. The SPI data interface keeps pin count low — three wires for the serial clock, data in, and chip select — which is why this part fits on small mixed-signal boards where board area is the constraint. Supply range is 2.7 V to 5.5 V for both the analog and digital rails. The reference is external, meaning the output full-scale is set by the voltage you apply to the REF pin. Temperature range is -40°C to 85°C, covering industrial control, telecom line cards, and sensor-conditioning stages that sit in an enclosure or outdoor cabinet. The SOT-23-8 footprint is a standard surface-mount package that reflows cleanly and is easy to inspect — no hidden balls, no underfill needed.
Active lifecycle — no LTB pressure
For a BOM line that needs a dual 8-bit DAC in a small package, this part is a current-production choice — no supply-chain clock ticking.