IEICE TRANSACTIONS on Fundamentals
A 2-Vpp Linear Input-Range Fully Balanced CMOS Transconductor and Its Application to a 2.5-V 2.5-MHz Gm-C LPF
Summary :
A fully balanced (FB) transconductor using two multi-input single-ended (SE) CMOS transconductors is proposed, where the transconductors use MOS transitors operating in a triode region for achieving a wide linear input-range. SE circuits are easier to design than differential circuits and inherently reject common-mode (CM) signals. The multi-input structure is used to make a CM feedback loop and to determine an output CM voltage. A high-output-resistance current mirror is used in converting a differential signal to a single-ended signal in order to achieve a high common-mode rejection ratio (CMRR) and a high output-resistance of the transconductor. The FB transconductor achieves a 2-Vpp linear input range at a 2.5-V power supply and consumes 1.74 mA. The output resistance of the FB transconductor is 2 MΩ. It operates at 2 V with a linear input-range of 1.2 Vpp and at 1.6 V with a linear input-range of 0.9 Vpp. A 2.5-V 2.5-MHz FB Gm-C filter using the FB transconductors achieved a CMRR of 45 dB and a passband IIP3 of 32 dBm.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E83-A No.11 pp.2295-2302
- Publication Date
- 2000/11/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Analog Signal Processing
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Tetsuro ITAKURA, Takashi UENO, Hiroshi TANIMOTO, Tadashi ARAI, "A 2-Vpp Linear Input-Range Fully Balanced CMOS Transconductor and Its Application to a 2.5-V 2.5-MHz Gm-C LPF" in IEICE TRANSACTIONS on Fundamentals,
vol. E83-A, no. 11, pp. 2295-2302, November 2000, doi: .
Abstract: A fully balanced (FB) transconductor using two multi-input single-ended (SE) CMOS transconductors is proposed, where the transconductors use MOS transitors operating in a triode region for achieving a wide linear input-range. SE circuits are easier to design than differential circuits and inherently reject common-mode (CM) signals. The multi-input structure is used to make a CM feedback loop and to determine an output CM voltage. A high-output-resistance current mirror is used in converting a differential signal to a single-ended signal in order to achieve a high common-mode rejection ratio (CMRR) and a high output-resistance of the transconductor. The FB transconductor achieves a 2-Vpp linear input range at a 2.5-V power supply and consumes 1.74 mA. The output resistance of the FB transconductor is 2 MΩ. It operates at 2 V with a linear input-range of 1.2 Vpp and at 1.6 V with a linear input-range of 0.9 Vpp. A 2.5-V 2.5-MHz FB Gm-C filter using the FB transconductors achieved a CMRR of 45 dB and a passband IIP3 of 32 dBm.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e83-a_11_2295/_p
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@ARTICLE{e83-a_11_2295,
author={Tetsuro ITAKURA, Takashi UENO, Hiroshi TANIMOTO, Tadashi ARAI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A 2-Vpp Linear Input-Range Fully Balanced CMOS Transconductor and Its Application to a 2.5-V 2.5-MHz Gm-C LPF},
year={2000},
volume={E83-A},
number={11},
pages={2295-2302},
abstract={A fully balanced (FB) transconductor using two multi-input single-ended (SE) CMOS transconductors is proposed, where the transconductors use MOS transitors operating in a triode region for achieving a wide linear input-range. SE circuits are easier to design than differential circuits and inherently reject common-mode (CM) signals. The multi-input structure is used to make a CM feedback loop and to determine an output CM voltage. A high-output-resistance current mirror is used in converting a differential signal to a single-ended signal in order to achieve a high common-mode rejection ratio (CMRR) and a high output-resistance of the transconductor. The FB transconductor achieves a 2-Vpp linear input range at a 2.5-V power supply and consumes 1.74 mA. The output resistance of the FB transconductor is 2 MΩ. It operates at 2 V with a linear input-range of 1.2 Vpp and at 1.6 V with a linear input-range of 0.9 Vpp. A 2.5-V 2.5-MHz FB Gm-C filter using the FB transconductors achieved a CMRR of 45 dB and a passband IIP3 of 32 dBm.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - A 2-Vpp Linear Input-Range Fully Balanced CMOS Transconductor and Its Application to a 2.5-V 2.5-MHz Gm-C LPF
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2295
EP - 2302
AU - Tetsuro ITAKURA
AU - Takashi UENO
AU - Hiroshi TANIMOTO
AU - Tadashi ARAI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E83-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2000
AB - A fully balanced (FB) transconductor using two multi-input single-ended (SE) CMOS transconductors is proposed, where the transconductors use MOS transitors operating in a triode region for achieving a wide linear input-range. SE circuits are easier to design than differential circuits and inherently reject common-mode (CM) signals. The multi-input structure is used to make a CM feedback loop and to determine an output CM voltage. A high-output-resistance current mirror is used in converting a differential signal to a single-ended signal in order to achieve a high common-mode rejection ratio (CMRR) and a high output-resistance of the transconductor. The FB transconductor achieves a 2-Vpp linear input range at a 2.5-V power supply and consumes 1.74 mA. The output resistance of the FB transconductor is 2 MΩ. It operates at 2 V with a linear input-range of 1.2 Vpp and at 1.6 V with a linear input-range of 0.9 Vpp. A 2.5-V 2.5-MHz FB Gm-C filter using the FB transconductors achieved a CMRR of 45 dB and a passband IIP3 of 32 dBm.
ER -
English
