A Statistical Design Approach for a Digitally Programmable Mismatch-Tolerant High-Speed Nauta Structure Differential OTA in 65-nm CMOS

Nicholson, Andrew; Iberzanov, Artemij; Jenkins, Julian; Hamilton, Tara Julia; Lehmann, Torsten

doi:10.1109/tvlsi.2016.2526048

Cited by 15 publications

(9 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The reason is that gm-C filters are, typically, noise and open-loop distortion dominated circuits whose performance parameters such as the power dissipation do not show dependence on technology scaling as long as the signal-swing scales down as the supply voltage diminishes [32]. By glancing at some published works about gm-C filters and Nauta transconductors in 65 nm [33][34][35], power dissipation in the tens of milliwatts are reported, which are slightly smaller than the ≈52 mW exhibited by the proposal in 180 nm. Thus, if power consumption is an issue, it is recommended to use a gm-C topology other than the biquad employed here; for instance, a more energy efficient gm-C structure for low-order filtering is reported in [36].…”

Section: Post Layout Simulationmentioning

confidence: 99%

CMOS Analog Filter Design for Very High Frequency Applications

et al. 2020

View full text Add to dashboard Cite

A design strategy for the synthesis of high-selectivity/low-order analog filters in Complementary Metal-Oxide-Semiconductor (CMOS) technology for very high frequency (VHF) applications is presented. The methodology for the reconstitution of a given transfer function by means of Signal Flow Graphs (SFG) manipulation in canonical form is proposed leading to a fully differential g m -C biquad filter. As a practical example, the design of a notch filter intended to suppress interferers in the lower sideband (400 MHz) of the Medical Implant Communication Service (MICS), in single-poly, 6-metal layers; Mixed-Signal/RF 0.18 µm CMOS technology is realized. To compare the performance of the proposal with some other solution, the design of a 7th order elliptic notch filter based on Frequency Dependent Negative Resistors (FDNRs) was also accomplished. The attained simulation results prove that the proposal is competitive compared to the FDNR solution and some other state-of-the-art filters reported in the literature. The most salient features of the proposed notch biquad include: the selectivity, whose value is comparable to that of a 7th order elliptic approach and some other 3rd order filters; a high-frequency operation without resonators; linearity, with a +15 dBm I I P 3 ; a reduced form factor with a total occupied area of 0.004282 mm2 and mostly a low design complexity.

show abstract

Section: Post Layout Simulationmentioning

confidence: 99%

CMOS Analog Filter Design for Very High Frequency Applications

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In order to provide a linear 1-V pp output amplitude, the Nauta-G m [20,21,22,23,24,25] OTA with high transconductance efficiency and linearity is utilized as shown in Fig. 3(b).…”

Section: Mcha-based Vga Using Dual Feedback and Cdrmentioning

confidence: 99%

A 1.2 GHz bandwidth and 88 dB gain range analog baseband for multi-standard 60 GHz applications

Chen

Shi

et al. 2020

IEICE Electron. Express

View full text Add to dashboard Cite

This paper proposes a 55-nm CMOS analog baseband (ABB) with wide tunable bandwidth (BW) and large tunable gain, which consists of a variable-gain amplifier (VGA) and a low-pass filter (LPF) for multistandard 60 GHz applications. A modified dual-feedback Cherry-Hooperbased VGA achieves a large gain range of −15∼73 dB. Through the analog and switched-capacitor (SC) tuning, the 8 th-order G m-C-based LPF features a widely and continuously tunable bandwidth of 100∼ 1200 MHz. A linear 8-bit digital-to-analog converter (DAC) is integrated for bandwidth and gain tuning. Measurement results show that the output linearity (OP1dB) is −35.5∼3.8 dBm, and the noise figure (NF) is less than 21 dB when the gain is 56 dB while consuming 12 mW of power. Keywords: analog baseband (ABB), dual feedback, variable-gain amplifier (VGA), G m-C low-pass filter (LPF), analog and switched-capacitor tuning, digital-to-analog converter (DAC) Classification: Integrated circuits

show abstract

“…The OTA represents the main building block of many analog circuitry, and to achieve low-voltage operation with sufficiently high dc gain, bandwidth, speed, and superior noise performance at lower supply voltages is very challenging. The Nauta OTA [9] is a simple structure using several inverters which does not contain any internal nodes. Its remarkable performance has been proved to have larger DC gain, speed and lower power supply voltage and higher output swing [9]- [11].…”

Section: Introductionmentioning

confidence: 99%