10-Bit, 100-MS/s sample-and-hold amplifier adopting positive feedback technique

Gil S. Kim, Jae Tack Yoo, Hoon J. Ki, Soo-Won Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Since a switched-capacitor sample-and-hold amplifier (SHA) has a feedback loop outside its op-amp, an op-amp with positive feedback technique (PFT) can be adopted to enhance the DC-gain of the op-amp. This paper proposes a positive feedback amplifier with dramatically increased DC-gain of 127-dB and reports that a SHA adopting proposed amplifier is stable by feedback operation. Measurement results demonstrated stable operation with spurious free dynamic range (SFDR) of 70- dB.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJ.F. Lopez, F.V. Fernandez, J.M. Lopez-Villegas, J.M. Rosa
Pages844-851
Number of pages8
Volume5837 PART II
DOIs
Publication statusPublished - 2005
EventVLSI Circuits and Systems II - Seville, Spain
Duration: 2005 May 92005 May 11

Other

OtherVLSI Circuits and Systems II
CountrySpain
CitySeville
Period05/5/905/5/11

Fingerprint

positive feedback
Operational amplifiers
amplifiers
Feedback
direct current
feedback amplifiers
Feedback amplifiers
dynamic range
capacitors
Capacitors

Keywords

  • Operational amplifier
  • Positive feedback technique
  • Sample-and-hold amplifier

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kim, G. S., Yoo, J. T., Ki, H. J., & Kim, S-W. (2005). 10-Bit, 100-MS/s sample-and-hold amplifier adopting positive feedback technique. In J. F. Lopez, F. V. Fernandez, J. M. Lopez-Villegas, & J. M. Rosa (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5837 PART II, pp. 844-851). [93] https://doi.org/10.1117/12.608554

10-Bit, 100-MS/s sample-and-hold amplifier adopting positive feedback technique. / Kim, Gil S.; Yoo, Jae Tack; Ki, Hoon J.; Kim, Soo-Won.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / J.F. Lopez; F.V. Fernandez; J.M. Lopez-Villegas; J.M. Rosa. Vol. 5837 PART II 2005. p. 844-851 93.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, GS, Yoo, JT, Ki, HJ & Kim, S-W 2005, 10-Bit, 100-MS/s sample-and-hold amplifier adopting positive feedback technique. in JF Lopez, FV Fernandez, JM Lopez-Villegas & JM Rosa (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5837 PART II, 93, pp. 844-851, VLSI Circuits and Systems II, Seville, Spain, 05/5/9. https://doi.org/10.1117/12.608554
Kim GS, Yoo JT, Ki HJ, Kim S-W. 10-Bit, 100-MS/s sample-and-hold amplifier adopting positive feedback technique. In Lopez JF, Fernandez FV, Lopez-Villegas JM, Rosa JM, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5837 PART II. 2005. p. 844-851. 93 https://doi.org/10.1117/12.608554
Kim, Gil S. ; Yoo, Jae Tack ; Ki, Hoon J. ; Kim, Soo-Won. / 10-Bit, 100-MS/s sample-and-hold amplifier adopting positive feedback technique. Proceedings of SPIE - The International Society for Optical Engineering. editor / J.F. Lopez ; F.V. Fernandez ; J.M. Lopez-Villegas ; J.M. Rosa. Vol. 5837 PART II 2005. pp. 844-851
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