Eight 12-bit DACs in a 20-TSSOP — what that means for the BOM
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. Settling time is 4.5 µs typical, fast enough for most closed-loop control loops running in the tens of kilohertz range.
Supply range and temperature grade — where this part lives
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. The -40°C to 125°C operating range covers industrial and automotive under-hood environments; the part is rated for the full temperature sweep, not just commercial. 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.
Active, ROHS3, and available through independent distribution
The MAX5825BAUP+T carries an active lifecycle status and is ROHS3 compliant.