12-bit dual DAC with I²C and ±0.5 LSB INL
The MAX5802BAUB+ is a dual 12-bit digital-to-analog converter with a voltage-buffered output, built around an R-2R ladder architecture. Its ±0.5 LSB integral nonlinearity (INL) and ±0.2 LSB differential nonlinearity (DNL) mean the output lands within half a least-significant bit of the ideal value across the full code range — no missing codes guaranteed, so a calibration loop can trust the monotonicity without extra characterization. Settling time is 4.5 µs typical to ±0.5 LSB for a full-scale step. In a closed-loop control system updating at 100 kHz, that 4.5 µs window sets the minimum time between DAC writes — the downstream amplifier or ADC must have its own acquisition settled before the next DAC output arrives.
Supply and reference flexibility
The reference can be external or internal — when using the internal reference, the full-scale output is set by the internal bandgap; with an external reference, the output span tracks the applied VREF directly. The 10-uMAX/uSOP package (3.00 mm × 3.00 mm body) is a surface-mount MSOP-10 footprint — the same as the standard 10-TFSOP, so it drops onto a layout already routed for that land pattern.