TFT电路的一些模拟构建块

Proceedings of the 44th IEEE 2001 Midwest Symposium on Circuits and Systems. MWSCAS 2001 (Cat. No.01CH37257) Pub Date : 2001-08-14 DOI:10.1109/MWSCAS.2001.986201

R. Itou, M. Kayama, T. Shima

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引用次数: 7

摘要

由非晶和/或多晶硅TFT制成的模拟电路受到阈值电压Vth和电流增益/spl β /的极宽偏差效应的影响。本文提出了一些用于TFT电路的模拟模块，其中使用了降低阈值电压和晶体管电流增益/spl β /失配所造成的影响的技术。首先，讨论了Vth和/spl beta/无偏差差分放大器。其次，提出了第v型无偏差电流源。最后，给出了Vth和/spl β /无偏差A类放大器。利用VDEC设计环境对测试芯片进行了仿真和设计。

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Some analog building blocks for TFT circuits

The analog circuits fabricated by the amorphous and/or polycrystalline silicon TFT suffer from very wide deviation effects of the threshold voltage Vth and the current gain /spl beta/. This paper proposes some analog building blocks for TFT circuits, in which the techniques to reduce the effects caused by the threshold voltage and the current gain /spl beta/ mismatch of the transistors are used. First, Vth and /spl beta/ deviation-free differential amplifier is discussed. Second, Vth deviation-free current source is proposed. Finally, Vth and /spl beta/ deviation-free class A amplifier is presented. The test chip to verify the proposed idea has been simulated and designed using VDEC design environment.

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Proceedings of the 44th IEEE 2001 Midwest Symposium on Circuits and Systems. MWSCAS 2001 (Cat. No.01CH37257)

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