Design of a Four-Quadrant 14-bit Multiplying D/A Converter

LEI Langcheng; LUO Yanxin; LIU Honghong; DU Yubin; GAO Weiqi; ZHANG Jun; WU Qiuxia; FU Dongbing

doi:10.13911/j.cnki.1004-3365.220109

Journals >Microelectronics >Volume 52 >Issue 4 >Page 572 > Article

Microelectronics
Vol. 52, Issue 4, 572 (2022)

Design of a Four-Quadrant 14-bit Multiplying D/A Converter

LEI Langcheng, LUO Yanxin, LIU Honghong, DU Yubin, GAO Weiqi, ZHANG Jun, WU Qiuxia, and FU Dongbing

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[in Chinese]

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DOI: 10.13911/j.cnki.1004-3365.220109 Cite this Article

LEI Langcheng, LUO Yanxin, LIU Honghong, DU Yubin, GAO Weiqi, ZHANG Jun, WU Qiuxia, FU Dongbing. Design of a Four-Quadrant 14-bit Multiplying D/A Converter[J]. Microelectronics, 2022, 52(4): 572 Copy Citation Text

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Abstract

A 14-bit multiplying D/A converter was designed. A piecewise current mode R-2R resistor network structure with high 3-bit thermometer code and low 11-bit binary code was adopted to avoid the disadvantages of large switch size and difficult layout matching of high resolution binary current mode R-2R resistor network. The circuit was fabricated in a mixed signal CMOS process. The measured DNL was within ±0.5 LSB, and the INL was within ±0.8 LSB, which was suitable for the applications of industrial control and instrumentation.

Keywords

current-mode R-2R resistance network laser trim multiplying D/A converter thin-film resistor

LEI Langcheng, LUO Yanxin, LIU Honghong, DU Yubin, GAO Weiqi, ZHANG Jun, WU Qiuxia, FU Dongbing. Design of a Four-Quadrant 14-bit Multiplying D/A Converter[J]. Microelectronics, 2022, 52(4): 572

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