IEICE TRANSACTIONS on Electronics
High Speed Transconductance-C-Opamp Integrator Using Current-Feedback Amplifier
Summary :
A high-speed transconductance-C-opamp integrator using a current-feedback amplifier is proposed. The integrator has good frequency response compared with a conventional transconductance-C-opamp integrator using a voltage-feedback amplifier. The current-feedback amplifier shifts the second pole of the proposed integrator to the upper frequency. The frequency is proportional to the current gain of the current-feedback amplifier. The proposed integrator can eliminate effects of the parasitics at the output node of the transconductance since the voltage at the node is fixed. One of the circuit examples of the proposed integrator is shown. Its validity is confirmed through HSPICE simulations. The proposed integrator works as predicted up to 260 MHz.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E88-C No.6 pp.1166-1171
- Publication Date
- 2005/06/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietele/e88-c.6.1166
- Type of Manuscript
- Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
- Category
- Building Block
Authors
Keyword
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Takahide SATO, Shigetaka TAKAGI, Nobuo FUJII, "High Speed Transconductance-C-Opamp Integrator Using Current-Feedback Amplifier" in IEICE TRANSACTIONS on Electronics,
vol. E88-C, no. 6, pp. 1166-1171, June 2005, doi: 10.1093/ietele/e88-c.6.1166.
Abstract: A high-speed transconductance-C-opamp integrator using a current-feedback amplifier is proposed. The integrator has good frequency response compared with a conventional transconductance-C-opamp integrator using a voltage-feedback amplifier. The current-feedback amplifier shifts the second pole of the proposed integrator to the upper frequency. The frequency is proportional to the current gain of the current-feedback amplifier. The proposed integrator can eliminate effects of the parasitics at the output node of the transconductance since the voltage at the node is fixed. One of the circuit examples of the proposed integrator is shown. Its validity is confirmed through HSPICE simulations. The proposed integrator works as predicted up to 260 MHz.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e88-c.6.1166/_p
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@ARTICLE{e88-c_6_1166,
author={Takahide SATO, Shigetaka TAKAGI, Nobuo FUJII, },
journal={IEICE TRANSACTIONS on Electronics},
title={High Speed Transconductance-C-Opamp Integrator Using Current-Feedback Amplifier},
year={2005},
volume={E88-C},
number={6},
pages={1166-1171},
abstract={A high-speed transconductance-C-opamp integrator using a current-feedback amplifier is proposed. The integrator has good frequency response compared with a conventional transconductance-C-opamp integrator using a voltage-feedback amplifier. The current-feedback amplifier shifts the second pole of the proposed integrator to the upper frequency. The frequency is proportional to the current gain of the current-feedback amplifier. The proposed integrator can eliminate effects of the parasitics at the output node of the transconductance since the voltage at the node is fixed. One of the circuit examples of the proposed integrator is shown. Its validity is confirmed through HSPICE simulations. The proposed integrator works as predicted up to 260 MHz.},
keywords={},
doi={10.1093/ietele/e88-c.6.1166},
ISSN={},
month={June},}
Copy
TY - JOUR
TI - High Speed Transconductance-C-Opamp Integrator Using Current-Feedback Amplifier
T2 - IEICE TRANSACTIONS on Electronics
SP - 1166
EP - 1171
AU - Takahide SATO
AU - Shigetaka TAKAGI
AU - Nobuo FUJII
PY - 2005
DO - 10.1093/ietele/e88-c.6.1166
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E88-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2005
AB - A high-speed transconductance-C-opamp integrator using a current-feedback amplifier is proposed. The integrator has good frequency response compared with a conventional transconductance-C-opamp integrator using a voltage-feedback amplifier. The current-feedback amplifier shifts the second pole of the proposed integrator to the upper frequency. The frequency is proportional to the current gain of the current-feedback amplifier. The proposed integrator can eliminate effects of the parasitics at the output node of the transconductance since the voltage at the node is fixed. One of the circuit examples of the proposed integrator is shown. Its validity is confirmed through HSPICE simulations. The proposed integrator works as predicted up to 260 MHz.
ER -
English
