A 500-MHz and 60-dBΩ CMOS Transimpedance Amplifier Using the New Feedforward Stabilization Technique


IEICE TRANSACTIONS on Electronics   Vol.E88-C    No.6    pp.1285-1287
Publication Date: 2005/06/01
Online ISSN: 
DOI: 10.1093/ietele/e88-c.6.1285
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category: Optical
TIA,  feedforward,  CMOS,  wideband,  

Full Text: PDF>>
Buy this Article

This paper describes a method of extending the signal frequency bandwidth while increasing the stability of a CMOS transimpedance amplifier (TIA). The TIA consists of three inverting amplifiers in a series, and a high-pass filter plus a non-inverting amplifier that are connected to the last two inverting amplifiers stated above in parallel. The TIA is fabricated using a 0.35 µm CMOS process and realizes stable conversion of 60-dBΩ from the photodiode current to the output voltage with more than 500 MHz of signal frequency bandwidth and 60 mW of power consumption from a 3.3 V supply voltage.