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In this paper, a 10-bit low power current-steering digital-to-analog converter is presented. A 4-D matrix structure of thermometer decoding has been used. Using this decoding scheme, instead of conventional 2-D row-column decoders or recently published 3-D structure, has led to considerable reduction in power consumption, effective area of digital section and complexity of the design. Four-corner simulations have been carried out using 0.35 μm TSMC CMOS process. Simulation results show that the 10-bit DAC operates at 200 MSample/s with power consumption of 51 mW. Power supply of the analog part is 3.3 V while the digital section operates with 2 V supply. SFDR at nyquist-rate is better than 74 dB.