12-Bit 2GSPS DAC
The ODT-DAC-12B2G-12 is a high-performance current steering 12-bit Swift™ DAC that operates at an update rate of up to 2GSPS. The DAC uses a proprietary architecture that reduces harmonic and intermodulation distortions at high output frequency and amplitudes. The high-performance DAC supports 20mA (maximum) differential output current and achieves up to ‑149dBm/Hz noise spectral density with excellent SFDR. The DAC is powered by a 1.8V and 1.2V analog supply, and a 0.8V digital supply
DAC Technology Overview
High-Speed Digital to Analog converters are critical in both communications systems, where it is part of a complementary transmit and receive path, as well as in active (RADAR & LiDAR) imaging systems, where a stimulus signal creates a reflection to be measured. In both cases, a high degree of linearity and phase control over a wide bandwidth.
Omni Design utilizes a patented architecture providing high linearity over wide bandwidths making it ideally suited to these applications.
Isolated Current Outputs
Generating clean high frequency signals presents many challenges, resulting in spectral contamination that degrades the quality of a digitally synthesized signal. Internal circuit operations can feed through contaminating the outputs, as well as the output feeding back into the circuit and modulating its performance. Unique output structure of Omni Design’s DACs isolates between the output signal and internal circuit elements drastically reducing these effects and allowing generation of broad bandwidth signals with improved SFDR & PSRR.
Use Cases
Clean signals are critical in both communications and automotive ADAS imaging systems. Advanced communications depend on dense channel configurations and complex modulation schemes and are sensitive to unwanted spectral artifacts that can degrade channel bandwidth. Omni Designs’ Swift™ DACs ensure maximum performance.