Maxim MAX5443ACUA+, 16-bit voltage-output DAC, R-2R architecture, 1µs settling, SPI, 2.7V–3.6V supply, 8-uMAX/uSOP, 0°C–70°C.
| Parameter | Value |
|---|---|
| Output type | Voltage - Unbuffered |
| Mounting | Surface Mount |
| Reference type | External |
| Voltage - supply, analog | 2.7V ~ 3.6V |
| Voltage - supply, digital | 2.7V ~ 3.6V |
| Data interface | SPI |
| Operating temperature | 0°C ~ 70°C |
| Package | Tube |
| Architecture | R-2R |
| INL (DNL) | ±0.5, ±0.5 |
| Settling time | 1µs (Typ) |
| Number of bits | 16 |
| Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) |
| Differential output | No |
| Number of d (A converters) | 1 |
The Maxim MAX5443ACUA+ is a single-channel, 16-bit voltage-output digital-to-analog converter built around an R-2R ladder architecture. It settles to within 1 LSB in 1 µs (typical).
The 1 µs settling time (typical) sets the maximum update rate — about 1 MSPS if the SPI clock and digital overhead allow.
For a production BOM, this part presents no near-term supply risk. The part is ROHS3 compliant.
The output is voltage, unbuffered. The R-2R ladder presents a resistive output; an external buffer is recommended for driving low-impedance loads.
Within the same family, the MAX5443ACUA+ is a 16-bit unbuffered voltage-output DAC. A pin-compatible alternative with the same resolution and interface would need to match the 8-uMAX package and SPI interface. No official second source is cited in the available records.