The MAX5873 is an advanced 12-bit, 200Msps, dual digital-to-analog converter (DAC). This DAC meets the demanding performance requirements of signal synthesis applications found in wireless base stations and other communications applications. Operating from 3.3V and 1.8V supplies, this dual DAC offers exceptional dynamic performance such as 78dBc spurious-free dynamic range (SFDR) at fOUT = 16MHz and supports update rates of 200Msps, with a power dissipation of only 255mW. The MAX5873 utilizes a current-steering architecture that supports a 2mA to 20mA full-scale output current range, and allows a 0.1VP-P to 1VP-P differential output voltage swing. The MAX5873 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 digital and clock inputs of the MAX5873 accept 3.3V CMOS voltage levels. The MAX5873 features a flexible input data bus that allows for dual-port input or a single-interleaved data port. The MAX5873 is available in a 68-pin QFN package with an exposed paddle (EP) and is specified for the extended temperature range (-40°C to +85°C). Refer to the MAX5874 and MAX5875 data sheets for pin-compatible 14-bit and 16-bit versions of the MAX5873, respectively. Refer to the MAX5876 for an LVDS-compatible version of the MAX5873.
The MAX5873 is a 12‑bit, 200 Msps dual 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 is offered in a 68‑lead QFN‑EP package suitable for -40 °C to +85 °C environments.
Key features include a spurious‑free dynamic range of 78 dBc at 16 MHz, low power dissipation of 255 mW, full‑scale output current of 2 mA to 20 mA, and flexible CMOS‑compatible digital and clock inputs. The device provides an integrated 1.2 V bandgap reference, optional external reference input, and a variety of output configurations.
| Maximum Update Rate | 200 Msps |
|---|---|
| Power Dissipation | 255 mW |
| Full‑Scale Output Current | 2 mA to 20 mA |
| SFDR (16 MHz) | 78 dBc |
| Noise Spectral Density (16 MHz) | -152 dBFS/Hz |
| Supply Voltages | 3.3 V and 1.8 V |
| Package | 68‑lead QFN‑EP |
The MAX5873 supports an output update rate of up to 200 Msps.
Typical power dissipation is only 255 mW.
It operates from 3.3 V and 1.8 V supplies.
The SFDR is 78 dBc at an output frequency of 16 MHz.