Four 12-bit DACs in one 16-SOIC
The Maxim Integrated MAX536BEWE+ packs four 12-bit digital-to-analog converters into a single 16-SOIC package, each with a voltage-buffered output. It uses an R-2R ladder architecture and communicates over an SPI data interface. Typical applications include industrial process control, automated test equipment, and multi-channel offset/gain trimming where board space is tight and you need four independent analog outputs from one footprint.
Supply voltage — the dual-rail constraint
The MAX536BEWE+ requires an analog supply of 10.8 V to 13.2 V and a separate -5 V rail. That dual-supply requirement is the first thing to check against your existing board rails — if your design only has a single positive supply, you will need to add a negative regulator or charge pump. The external reference input (REF) gives you flexibility to set the output span independent of the supply rails.
3 µs settling — fast enough for most update loops
The typical settling time is 3 µs.
Active and available — no end-of-life concern
No last-time-buy or obsolescence risk for new designs. ROHS3 compliant, which simplifies export and regulatory paperwork.