A 1.3-V 5-mW fully integrated tunable bandpass filter at 2.1 GHz in 0.35-μm CMOS

Dulger, F.; Sánchez-Sinencio, E.; Silva-Martí­nez, J.

doi:10.1109/jssc.2003.811867

Cited by 63 publications

(30 citation statements)

References 18 publications

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“…can be estimated as (8) where denotes the effective quality factor in the LC tank, is the half LC tank's parallel loss resistance, and is the base quality factor of the LC tank.…”

Section: Noise Figure and Dynamic Range Analysismentioning

confidence: 99%

“…Therefore, the LNA combined with a 3-dB insertion-loss discrete filter achieves a net 5-dB noise figure and 17-dBm input compression point with 17-dB voltage gain, yielding a 1-dB compression point dynamic range of 152 dB (in a 1-Hz normalized bandwidth). To date, reported -enhanced filter designs have succeeded in bandlimiting the signal sufficiently, but fail to match these stringent noise figure and dynamic range capabilities [8]. The best-documented examples present a noise figure of 19 dB and dynamic range of 137 dB Hz while drawing as much as 50 mW or more [4]- [9], far from the needed requirements, even for Bluetooth, which has very relaxed system specifications.…”

Section: Introductionmentioning

confidence: 99%

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A 2.5-GHz low-power, high dynamic range, self-tuned Q-enhanced LC filter in SOI

Kuhn

2005

IEEE J. Solid-State Circuits

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Abstract--enhanced LC filter technology offers a promising approach to remove the off-chip preselect filter still required in current transceivers. However, reported designs fail to meet stringent system specifications such as dynamic range and noise figure for existing wireless standards. The complexity and inaccuracy of frequency and tuning have also prevented acceptance in industry applications. This paper presents a low-power and high-performance design targeted at Bluetooth in a silicon-on-isolator (SOI) CMOS process. Drawing 5 mA from a 3-V supply, it achieves 23-dB voltage gain (14-dB power gain), approximately 6-dB noise figure, and a 153-dB Hz 1-dB compression point dynamic range, when operating with a 70-MHz bandwidth at 2.5 GHz. A simplified approach to frequency and tuning is also demonstrated, making -enhanced LC filtering feasible in industry application for the first time.

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“…can be estimated as (8) where denotes the effective quality factor in the LC tank, is the half LC tank's parallel loss resistance, and is the base quality factor of the LC tank.…”

Section: Noise Figure and Dynamic Range Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A 2.5-GHz low-power, high dynamic range, self-tuned Q-enhanced LC filter in SOI

Kuhn

2005

IEEE J. Solid-State Circuits

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“…Basic building blocks of continuous-time (CT) bandpass delta-sigma (Δ-Σ) modulators are CT second-order biquad filters, which can be implemented as transconductancecapacitor (G m -C) filters or as inductor-capacitor (LC) tank circuits with former having limitations to high frequency signals [1]- [3]. Monolithic bandpass filters with on-chip LC tuned circuits are therefore preferred from 100 MHz to over 1 GHz.…”

Section: Introductionmentioning

confidence: 99%

Q-enhancement with on-chip inductor optimization for reconfigurable Δ-Σ radio-frequency ADC

Lota

Demosthenous

2015

2015 IEEE 13th International New Circuits and Systems Conference (NEWCAS)

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Abstract-The paper details on-chip inductor optimization for a reconfigurable continuous-time delta-sigma (Δ-Σ) modulator based radio-frequency analog-to-digital converter. Inductor optimisation enables the Δ-Σ modulator with Q enhanced LC tank circuits employing a single high Q-factor on-chip inductor and lesser quantizer levels thereby reducing the circuit complexity for excess loop delay, power dissipation and dynamic element matching. System level simulations indicate at a Q-factor of 75 Δ-Σ modulator with a 3-level quantizer achieves dynamic ranges of 106, 82 dB and 84 dB for RFID, TETRA, and Galileo over bandwidths of 200 kHz, 10 MHz and 40 MHz respectively.

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“…In digital domain, a large number of reconfigurable digital systems have been demonstrated for real applications. Meanwhile, in analog domain many efforts have also been devoted to developing programmable analog circuits, which include programmable gain amplifiers [1,2,3], reconfigurable filters [4,5,6,7], programmable neural networks [8,9], and state-of-the-art field programmable analog arrays (FPAAs) [10,11,12,13,14,15]. Such programmable analog circuits have been widely used in various applications.…”

Section: Introductionmentioning

confidence: 99%