8-bit SPI DAC in a SOT-23-6 — what it is and where it fits
The Maxim Integrated MAX5385EUT+T is an 8-bit, single-channel, voltage-output digital-to-analog converter (DAC) with a SPI serial interface. It integrates the reference and output buffer on-chip, so the BOM stays minimal — just the DAC and a few bypass caps. The current-steering architecture delivers a buffered voltage output that settles in 20 µs (typ), fast enough for closed-loop trim adjustments, set-point control in power supplies, or sensor calibration in industrial instruments. The SOT-23-6 package fits on tight PCBs where board area is at a premium, and the -40°C to 85°C range covers most industrial and telecom enclosures without a heat sink.
Supply, interface, and output — what the ratings mean for the BOM
The analog and digital supplies share the same 2.7 V to 5.5 V range. The SPI interface runs at standard logic levels matching the supply.
Sourcing and lifecycle — active, no LTB concern
The MAX5385EUT+T carries an Active lifecycle status and is ROHS3 compliant. For a BOM line that needs a compact, low-pin-count DAC, this part is a safe choice for both prototyping and production — no looming obsolescence to manage.
