A dual-feedback folded-cascode fully differential transimpedance amplifier in 65-nm CMOS

Yoonji Park, Sung Min Park

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This paper presents a fully differential transimpedance amplifier (TIA) realized in a standard 65-nm CMOS technology, which exploits a novel dual-feedback folded-cascode input configuration for high transimpedance gain and low input impedance characteristics, and employs active single-to-differential (ASD) circuit particularly for fully differential signaling even from the input stage. Simulated results of the proposed dual-feedback folded-cascode differential (DFD) TIA show 67-dBΩ transimpedance gain, 330-MHz bandwidth for 1.6-pF photodiode capacitance,-77.2-dB power supply rejection ratio at 100 kHz,-26-dBm sensitivity, and 3.38-mW power consumption from a single 1.2-V supply.

Original languageEnglish
Pages (from-to)281-287
Number of pages7
JournalJournal of Semiconductor Technology and Science
Volume20
Issue number3
DOIs
StatePublished - Jun 2020

Keywords

  • Active single-to-differential
  • CMOS
  • Dual-feedback
  • Folded-cascode
  • TIA

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