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A 3-V, 6-Bit C-2C Digital-to-Analog Converter Using Complementary Organic Thin-Film Transistors on Glass

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5 Author(s)
Wei Xiong ; Center for Integrated Systems, Stanford University, Stanford, CA, USA ; Yang Guo ; Ute Zschieschang ; Hagen Klauk
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A 3-V, 6-bit DAC is designed using complementary organic thin-film transistors on a glass substrate. The p-channel and n-channel transistors utilize dinaphthothienothiophene (DNTT) and hexadecafluorocopperphthalocyanine (F16CuPc) as the organic semiconductors, respectively. A low-temperature process compatible with flexible plastic substrates is used to fabricate the circuit. The DAC utilizes switched capacitors to circumvent the large transistor-current variations, and a C-2C structure to avoid the large capacitances that would otherwise be required in the thin-film process. With calibration, the DAC achieves DNL and INL of less than 1 LSB at a conversion rate of 100 Hz.

Published in:

IEEE Journal of Solid-State Circuits  (Volume:45 ,  Issue: 7 )