| Citation: |
Qiu Dong, Fang Sheng, Li Ran, Xie Renzhong, Yi Ting, Hong Zhiliang. A current-steering self-calibration 14-bit 100-MSPs DAC[J]. Journal of Semiconductors, 2010, 31(12): 125007. doi: 10.1088/1674-4926/31/12/125007
Qiu D, Fang S, Li R, Xie R Z, Yi T, Hong Z L. A current-steering self-calibration 14-bit 100-MSPs DAC[J]. J. Semicond., 2010, 31(12): 125007. doi: 10.1088/1674-4926/31/12/125007.
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A current-steering self-calibration 14-bit 100-MSPs DAC
doi: 10.1088/1674-4926/31/12/125007
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Abstract
This paper presents the design and implementation of a 14-bit, 100 MS/s CMOS digital-to-analog converter (DAC). Analog background self-calibration based on the concept of analog current trimming is introduced. A constant clock load switch driver, a calibration period randomization circuit and a return-to-zero output stage have been adopted to improve the dynamic performance. The chip has been manufactured in a SMIC 0.13-μm process and occupies 1.33 × 0.97 mm2 of the core area. The current consumption is 50 mA under 1.2/3.3 V dual power supplies for digital and analog, respectively. The measured differential and integral nonlinearity is 3.1 LSB and 4.3 LSB, respectively. The SFDR is 72.8 dB at a 1 MHz signal and a 100 MHz sampling frequency.-
Keywords:
- DAC
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References
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