J. Semicond. > 2010, Volume 31 > Issue 10 > 105006

SEMICONDUCTOR INTEGRATED CIRCUITS

A 12-bit current steering DAC with 2-dimensional gradient-error tolerant switching scheme

Chen Hao, Liu Liyuan, Li Dongmei, Zhang Chun and Wang Zhihua

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DOI: 10.1088/1674-4926/31/10/105006

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Abstract: A 12-bit intrinsic accuracy digital-to-analog converter integrated into standard digital 0.18 μm CMOS technology is proposed. It is based on a current steering segmented 6+6 architecture and requires no calibration. By dividing one most significant bit unary source into 16 elements located in 16 separated regions of the array, the linear gradient errors and quadratic errors can be averaged and eliminated effectively. A novel static performance testing method is proposed. The measured differential nonlinearity and integral nonlinearity are 0.42 and 0.39 least significant bit, respectively. For 12-bit resolution, the converter reaches an update rate of 100 MS/s. The chip operates from a single 1.8 V voltage supply, and the core die area is 0.28 mm2.

Key words: current steering DAC

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    Received: 18 August 2015 Revised: 20 May 2010 Online: Published: 01 October 2010

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      Chen Hao, Liu Liyuan, Li Dongmei, Zhang Chun, Wang Zhihua. A 12-bit current steering DAC with 2-dimensional gradient-error tolerant switching scheme[J]. Journal of Semiconductors, 2010, 31(10): 105006. doi: 10.1088/1674-4926/31/10/105006 ****Chen H, Liu L Y, Li D M, Zhang C, Wang Z H. A 12-bit current steering DAC with 2-dimensional gradient-error tolerant switching scheme[J]. J. Semicond., 2010, 31(10): 105006. doi: 10.1088/1674-4926/31/10/105006.
      Citation:
      Chen Hao, Liu Liyuan, Li Dongmei, Zhang Chun, Wang Zhihua. A 12-bit current steering DAC with 2-dimensional gradient-error tolerant switching scheme[J]. Journal of Semiconductors, 2010, 31(10): 105006. doi: 10.1088/1674-4926/31/10/105006 ****
      Chen H, Liu L Y, Li D M, Zhang C, Wang Z H. A 12-bit current steering DAC with 2-dimensional gradient-error tolerant switching scheme[J]. J. Semicond., 2010, 31(10): 105006. doi: 10.1088/1674-4926/31/10/105006.

      A 12-bit current steering DAC with 2-dimensional gradient-error tolerant switching scheme

      DOI: 10.1088/1674-4926/31/10/105006
      • Received Date: 2015-08-18
      • Accepted Date: 2010-04-05
      • Revised Date: 2010-05-20
      • Published Date: 2010-10-05

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