A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier

Nihit Bajaj; Bert Vermeire; Bertan Bakkaloglu

doi:10.1109/ISCAS.2010.5537958

A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier

Nihit Bajaj, Bert Vermeire, Bertan Bakkaloglu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

A technique for power-bandwidth scaling of a current feedback amplifier (CFA) is presented. By employing current gain, instead of the feedback resistance, to alter the closed-loop bandwidth of the CFA, the proposed approach is shown to provide 30% quiescent power savings for a bandwidth variation of 10MHz to 100MHz. Parasitic extracted simulations are performed in a 0.18μm CMOS process with a power supply of 3.3V and a load capacitance of 1.5pF. A closed-loop gain range of 0-20dB, slew rate of 200V/μs, settling time of 33ns and total harmonic distortion of 73dB is achieved at a quiescent power consumption range of 3mW to 4.4mW.

Original language	English (US)
Title of host publication	ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
Subtitle of host publication	Nano-Bio Circuit Fabrics and Systems
Pages	217-220
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2010.5537958
State	Published - Aug 31 2010
Event	2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France Duration: May 30 2010 → Jun 2 2010

Publication series

Name	ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems

Other

Other	2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
Country/Territory	France
City	Paris
Period	5/30/10 → 6/2/10

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/ISCAS.2010.5537958

Cite this

Bajaj, N., Vermeire, B., & Bakkaloglu, B. (2010). A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (pp. 217-220). Article 5537958 (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems). https://doi.org/10.1109/ISCAS.2010.5537958

A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier. / Bajaj, Nihit; Vermeire, Bert; Bakkaloglu, Bertan.
ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. p. 217-220 5537958 (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Bajaj, N, Vermeire, B & Bakkaloglu, B 2010, A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier. in ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems., 5537958, ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, pp. 217-220, 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010, Paris, France, 5/30/10. https://doi.org/10.1109/ISCAS.2010.5537958

Bajaj N, Vermeire B, Bakkaloglu B. A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. p. 217-220. 5537958. (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems). doi: 10.1109/ISCAS.2010.5537958

Bajaj, Nihit ; Vermeire, Bert ; Bakkaloglu, Bertan. / A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier. ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. pp. 217-220 (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems).

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abstract = "A technique for power-bandwidth scaling of a current feedback amplifier (CFA) is presented. By employing current gain, instead of the feedback resistance, to alter the closed-loop bandwidth of the CFA, the proposed approach is shown to provide 30% quiescent power savings for a bandwidth variation of 10MHz to 100MHz. Parasitic extracted simulations are performed in a 0.18μm CMOS process with a power supply of 3.3V and a load capacitance of 1.5pF. A closed-loop gain range of 0-20dB, slew rate of 200V/μs, settling time of 33ns and total harmonic distortion of 73dB is achieved at a quiescent power consumption range of 3mW to 4.4mW.",

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A 10MHz to 100MHz bandwidth scalable, fully differential current feedback amplifier

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