12-bit DAC with 1 µs settling — what it means for the output
The MAX552ACUB+ is a Maxim Integrated 12-bit digital-to-analog converter built around an R-2R ladder architecture. It delivers an unbuffered current output, which means the load resistor sets the voltage swing — no internal op-amp to add offset or limit bandwidth. The 1 µs settling time lets it update at roughly 1 MSPS, fast enough for closed-loop control, waveform generation, or trimming a power supply reference. The SPI interface (up to 10 MHz typical) keeps the pin count low: just three wires to the host controller.
Supply and temperature — where this part fits
Both the analog and digital supplies share a single 2.7 V to 3.6 V rail. The 0°C to 70°C temperature range limits it to commercial, indoor, or benchtop equipment.
INL/DNL and output type — precision and loading
The ±0.5 LSB max INL and ±0.5 LSB max DNL guarantees monotonicity across all codes — no missing codes, no glitch steps at major carries. That matters when the DAC is driving a trim voltage or a closed-loop setpoint where every count needs to be repeatable. Because the output is unbuffered current, the external load resistor must be chosen so the output compliance (typically within 0.5 V of the rails) is not violated. The reference is external, so the full-scale range tracks whatever voltage reference the system already uses.
Lifecycle and sourcing
The MAX552ACUB+ is listed as Active with ROHS3 compliance. No end-of-life notice, no last-time-buy window.