DocumentCode
439767
Title
Multi-pole bandwidth enhancement technique for trans-impedance amplifiers
Author
Analui, B. ; Hajimiri, A.
Author_Institution
California Institute of Technology, Pasadena, CA, USA
fYear
2002
fDate
24-26 Sept. 2002
Firstpage
303
Lastpage
306
Abstract
A new technique for bandwidth enhancement of amplifiers is developed. Adding several passive networks, which can be designed independently, enables the control of transfer function and frequency response behavior. Parasitic capacitances of cascaded gain stages are isolated from each other and absorbed into passive networks. A simplified design procedure, using well-known filter component values is introduced. To demonstrate the feasibility of the method, a CMOS trans-impedance amplifier is implemented in 0.18µm BiCMOS technology. It achieves 9.2GHz bandwidth in the presence of 0.5pF photo diode capacitance and a trans-resistance gain of 54dBΩ, while drawing 55mA from a 2.5V supply.
Keywords
Band pass filters; Bandwidth; BiCMOS integrated circuits; CMOS technology; Diodes; Frequency response; Isolation technology; Parasitic capacitance; Passive networks; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2002. ESSCIRC 2002. Proceedings of the 28th European
Conference_Location
Florence, Italy
Type
conf
Filename
1471526
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