The MAX5891 is an advanced 16-bit, 600Msps digital-to-analog converter (DAC) that meets the demanding performance requirements of signal synthesis applications found in wireless base stations and other communications applications. The MAX5891 DAC operates from 3.3V and 1.8V supplies, supports update rates of 600Msps using high-speed LVDS inputs, and consumes only 298mW of power. It offers exceptional dynamic performance, such as 80dBc spurious-free dynamic range (SFDR) at fOUT = 30MHz. The MAX5891 utilizes a current-steering architecture that supports a 2mA to 20mA full-scale output current range, and produces -2dBm to -22dBm full-scale output signal levels with a double-terminated 50Ω load. The MAX5891 features an integrated 1.2V bandgap reference and control amplifier to ensure high-accuracy and low-noise performance. A separate reference input (REFIO) allows for the use of an external reference source for optimum flexibility and improved gain accuracy. The MAX5891 digital inputs accept LVDS voltage levels, and the flexible clock input can be driven differentially or single-ended, AC- or DC-coupled. The MAX5891 is available in a 68-pin QFN package with an exposed paddle (EP) and is specified for the extended (-40°C to +85°C) temperature range.
The MAX5891 is a 16‑bit, 600 Msps digital‑to‑analog converter designed for high‑performance signal synthesis in wireless base stations and other communications applications. It operates from 3.3 V and 1.8 V supplies and offers LVDS‑compatible digital inputs with flexible clocking.
Key features include a 2 mA‑20 mA full‑scale output current range, 80 dBc spurious‑free dynamic range at 30 MHz, low noise spectral density of –163 dBFS/Hz at 36 MHz, and a compact 68‑pin QFN‑EP package. The datasheet provides detailed electrical characteristics, timing specifications, and pin descriptions for designers.
| Resolution | 16 Bits |
|---|---|
| Maximum DAC Update Rate | 600 Msps |
| Power Dissipation | 298 mW (typ) at 600 Msps |
| Spurious‑Free Dynamic Range (SFDR) | 80 dBc at 30 MHz |
| Noise Spectral Density | -163 dBFS/Hz at 36 MHz |
| Supply Voltage | 3.3 V and 1.8 V |
The MAX5891 can update at up to 600 Msps.
It operates from 3.3 V and 1.8 V supplies.