16-bit voltage-out DAC with R-2R core
The MAX5442AEUB+ is a single-channel, 16-bit digital-to-analog converter from Analog Devices with a voltage-unbuffered output and R-2R ladder architecture. It converts a serial SPI data stream into an analog voltage output with a typical settling time of 1 µs, making it suitable for closed-loop control and waveform generation where the load is a high-impedance input. The R-2R architecture uses a resistor ladder network to produce the analog output, which means the accuracy depends on the external reference voltage (Reference Type: External). The ±0.5 LSB integral and differential nonlinearity (INL/DNL) guarantee monotonic performance and no missing codes across the full 16-bit range — a key spec for precision control loops where every code step must produce a predictable voltage increment.
Supply, interface, and temperature grade
Both the analog and digital supply rails are tied to a single 5 V supply, simplifying the power tree. The SPI data interface at the digital input accepts clocked data from a microcontroller or FPGA without additional level-shifting, provided the host logic also runs at 5 V. The differential output is No, meaning the output is single-ended referenced to ground.
The supplier device package is designated 10-uMAX/uSOP, a standard footprint shared with other precision converters in this family.
It is ROHS3 compliant, meeting the latest EU restriction-of-hazardous-substances directive. No official successor or pin-compatible alternative is listed — the part is the current offering in this precision DAC family.