A 4.1-mW 10-MHz Fourth-Order Source-Follower-Based Continuous-Time Filter With 79-dB DR

D'Amico, S.; Conta, M.; Basçhirotto, A.

doi:10.1109/jssc.2006.884191

Cited by 135 publications

(73 citation statements)

References 5 publications

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“…Clearly different trade-offs were made for the 4 filters in the comparison. The particular technology node in which the filters were implemented has little impact on the filter performance, as none of the transistors is given minimum dimensions, as the transistors in de current mirrors need a sufficiently high output impedance and the filter linearity improves by reducing the effect of channel length modulation in the source followers [1]. Power consumption, however, directly influences the noise performance.…”

Section: Resultsmentioning

confidence: 99%

“…Adequate filtering of incoming signals with high selectivity and high linearity increases the receivers' overall dynamic range and loosens linearity requirements of subsequent signal processing blocks, hence, allowing to increase the overall power efficiency. In [1], the authors present a sourcefollower based Gm-C topology to realize low-power active filters while keeping nonlinearity low (see Fig. 1.a).…”

Section: Introductionmentioning

confidence: 99%

“…In [2], the authors modified the topology presented in [1] to increase linearity for large input signals, increasing the dynamic range while maintaining the same lower power consumption (see Fig. 1.c).…”

Section: Introductionmentioning

confidence: 99%

“…1.c). The topologies of both [1] and [2], however, clearly lack the possibility to offer zeros in their transfer functions, hindering implementation of e.g. Chebyshev II and elliptic filter stages.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A large input range source-follower based bi-quad filter cell

Praet

Torfs

Bauwelinck

et al. 2013

IEICE Electron. Express

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A large input range source-follower based bi-quad filter cell

Praet

Torfs

Bauwelinck

et al. 2013

IEICE Electron. Express

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show abstract

“…The figure of merit (FOM) defined in [18] and performance metrics from which the FOM is calculated are summarized in Table 1. This FOM however neglects the die area as a performance factor.…”

Section: Baseband Architecturementioning

confidence: 99%

A universal low-noise analog receiver baseband in 65-nm CMOS

Tekin

Elwan²,

Pedrotti

2010

Analog Integr Circ Sig Process

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In this paper, a novel universal receiver baseband approach is introduced. The chain includes a postmixer noise shaping blocker pre-filter, a programmable-gain post mixer amplifier (PMA) with blocker suppression, a differential ramp-based novel linear-in-dB variable gain amplifier and a Sallen-Key output buffer. The 1.2-V chain is implemented in a 65-nm CMOS process, occupying a die area of 0.45 mm 2 . The total power consumption of the baseband chain is 11.5 mW. The device can be tuned across a bandwidth of 700-KHz to 5.2-MHz with 20 kHz resolution and is tested for two distinct mobile-TV applications; integrated services digital broadcasting-terrestrial ISDB-T (3-segment f c = 700 kHz) and digital video broadcastingterrestrial/handheld (DVB-T/H f c = 3.8 MHz). The measured IIP3 of the whole chain for the adjacent blocker channel is 24.2 and 24 dBm for the ISDB-T and DVB-T/H modes, respectively. The measured input-referred noise density is 10.5 nV/sqrtHz in DVB-T/H mode and 14.5 nV/ sqrtHz in ISDB-T mode.

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Bandwidth extension, linearity enhancement, and cost reduction techniques for continuous‐time channel‐select filters

Mojarad

Kamarei

2016

Circuit Theory & Apps

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Summary Achieving a wide bandwidth in a conventional active‐RC filter requires large power consumption and is often accompanied by significant performance degradation. In this paper, a new structure to implement active‐RC continuous‐time filters and also a new frequency compensation scheme for the operational amplifiers that are the main building blocks of active‐RC filters are proposed. Exploiting these techniques increases the maximum possible bandwidth with lower power consumption in comparison with the conventional architectures, reduces die area, and enhances the dynamic range. The effectiveness of these methods has been verified by analysis and simulation of the conventional and proposed filters under identical conditions. Both the analytical investigations and extensive simulation results prove that the adopted techniques improve the performance of continuous‐time filters considerably in terms of bandwidth and linearity while reducing the die area. Simulations have been carried out in a standard 90‐nm CMOS process by using Advanced Design System (ADS), and the proposed filter features 11.08‐dB spurious‐free dynamic range improvement and 5.9 times bandwidth enhancement. Also, the total on‐chip capacitance is made 2.4 times smaller by using the new biquad structure. Copyright © 2016 John Wiley & Sons, Ltd.

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A 4.1-mW 10-MHz Fourth-Order Source-Follower-Based Continuous-Time Filter With 79-dB DR

Cited by 135 publications

References 5 publications

A large input range source-follower based bi-quad filter cell

A large input range source-follower based bi-quad filter cell

A universal low-noise analog receiver baseband in 65-nm CMOS

Bandwidth extension, linearity enhancement, and cost reduction techniques for continuous‐time channel‐select filters

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