12-bit 500 MSPS IQ DAC

The 12-bit 500 MSPS IQ DAC employs a high-performance current steering architecture and provides optional differential current output or differential voltage output. The bandgap and current source included to provide a complete DAC. The DAC can be configured to adjust full-scale output range. The DAC uses segmentation architecture combined with Q2 Random Walk algorithm to achieve excellent dynamic and static performance, wide output bandwidth. An internal resistive load together with current source is used to set differential voltage output, which independent from process, supply and temperature.
The block is designed on TSMC CMOS 65 nm technology.

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