The MAX5825BAUP+T from Maxim Integrated packs eight 12-bit voltage-output digital-to-analog converters into a compact 20-TSSOP package, each channel buffered to drive loads directly. The R-2R architecture keeps the die small and the cost per channel low — a good fit for multi-channel trim, offset adjustment, or waveform generation where you need eight independent analog outputs from a single I²C bus.
Analog and digital supply rails both run from 2.7 V to 5.5 V, so a single 3.3 V or 5 V rail powers the whole device — no separate analog rail needed. That extended range matters if the board sits near a motor, an engine bay, or outdoor telecom gear.
Reference options and accuracy
The MAX5825 accepts either an external reference or uses an internal one, giving the designer flexibility to trade off accuracy against BOM cost. INL and DNL are ±0.5 LSB and ±0.2 LSB respectively — the DNL figure is below 0.5 LSB, which guarantees monotonicity across all codes. That matters for closed-loop trimming where a non-monotonic step could cause oscillation.
