Gm-boosted differential transimpedance amplifier architecture

IEICE Electronics Express

Ali Fotowat-Ahmady²  Abdolreza Nabavi¹  Mohammad K. Moravvej-Farshi¹  Mohsen Jalali¹ 

[1] ECE Department, Tarbiat Modares University;Unistar Micro Technology Inc.

关键词: optical receiver;    transimpedance amplifier;    common gate configuration;    floating biasing technique;    gm-boosting technique;   

DOI  :  10.1587/elex.4.498

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(5)Cited-By(1)A modified floating biased common-gate transimpedance amplifier with improved low corner frequency is introduced. It is also shown that gm-boosting technique can be utilized for differential implementation of this transimpedance amplifier, without degrading the circuit sensitivity or using any off-chip components. HSPICE simulations for differential implementation illustrate more than two orders of magnitudes improvement of low corner frequency, about 80% increase in gain, and 20% reduction in input referred noise, compared to those of conventional single-ended floating biased common gate transimpedance amplifier.

【 授权许可】

Unknown