高频应用中基于互补差分对的折叠级联码OTA

Proceedings of the Third International Workshop on Design of Mixed-Mode Integrated Circuits and Applications (Cat. No.99EX303) Pub Date : 1999-07-28 DOI:10.1109/MMICA.1999.833595

G. Olivera-Romero, J. Silva-Martínez

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引用次数: 7

摘要

本文比较了几种先前报道的折叠级联运算跨导放大器(OTAs)和一种基于互补差分对的结构。对于相同的功耗和相似的晶体管尺寸，所提出的OTA具有更高的带宽和更快的响应。结果表明，对于典型的开关电容积分器，使用0.5 pF电容器，可以实现1%的沉降时间低于3 ns。

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A folded-cascode OTA based on complementary differential-pairs for HF applications

In this paper, several previously reported folded-cascode Operational Transconductance Amplifiers (OTAs) and a proposed structure based on complementary differential pairs are compared. For the same power consumption and similar transistor dimensions the proposed OTA presents both higher bandwidth and faster response. It is shown that for a typical switched-capacitor integrator, using 0.5 pF capacitors, 1% settling times below to 3 ns can be achieved.

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Proceedings of the Third International Workshop on Design of Mixed-Mode Integrated Circuits and Applications (Cat. No.99EX303)

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