Výsledky vyhledávání - "Siladitya Dey"

A Highly Linear OTA-Less 1-1 MASH VCO-Based $\Delta\Sigma$ ADC With an Efficient Phase Quantization Noise Extraction Technique

Autor: Ramin Zanbaghi, Kartikeya Mayaram, Hossein Zareie, Pedram Payandehnia, Hamidreza Maghami, Siladitya Dey, Hossein Mirzaie, Terri S. Fiez, Justin B. Goins

Publikováno v: IEEE Journal of Solid-State Circuits. 55:706-718

In this article, an efficient technique is introduced to extract the quantization noise of a multi-phase voltage-controlled oscillator (VCO)-based quantizer (VCOQ) in the time domain as a pulsewidth modulated (PWM) signal. Using this technique, a new

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03f14c9d96533a75c482f1963876c886
https://doi.org/10.1109/jssc.2019.2954764

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A Highly Linear OTA-Free VCO-Based 1-1 MASH $\Delta\Sigma$ ADC

Autor: Terri S. Fiez, Hossein Mirzaie, Kartikeya Mayaram, Siladitya Dey, Pedram Payandehnia, Ramin Zanbaghi, Hamidreza Maghami

Publikováno v: IEEE Transactions on Circuits and Systems I: Regular Papers. 66:2440-2453

In this paper, a new voltage-controlled oscillator (VCO)-based 1-1 MASH delta–sigma ADC structure is presented. The proposed architecture does not require any operational transconductance amplifier-based analog integrators or integrating capacitors

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92c2552d3cc91f399ef7b130ff06b9f8
https://doi.org/10.1109/tcsi.2019.2897785

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A 0.49–13.3 MHz Tunable Fourth-Order LPF with Complex Poles Achieving 28.7 dBm OIP3

Autor: Manjunath Kareppagoudr, Massoud Tohidian, Siladitya Dey, Gabor C. Temes, Hossein Mirzaie, Hamidreza Maghami, Pedram Payandehnia

Publikováno v: IEEE Transactions on Circuits and Systems I: Regular Papers. 65:2353-2364

A novel switched-capacitor low-pass filter architecture is presented. In the proposed scheme, a feedback path is added to a charge-rotating real-pole filter to implement complex poles. The selectivity is enhanced, and the in-band loss is reduced comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c95e94bf7efc954aeb5ae5acc57b1d1
https://doi.org/10.1109/tcsi.2017.2788466

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A 50 MHz BW 76.1 dB DR Two-Stage Continuous-Time Delta–Sigma Modulator With VCO Quantizer Nonlinearity Cancellation

Autor: Kartikeya Mayaram, Terri S. Fiez, Karthikeyan Reddy, Siladitya Dey

Publikováno v: IEEE Journal of Solid-State Circuits. 53:799-813

A two-stage continuous-time $\Delta \Sigma $ modulator with voltage-controlled oscillator based quantizer (VCOQ) is presented. The presented modulator suppresses the VCOQ voltage-to-frequency nonlinearity through dual path cancellation to achieve hig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84cb03260a71f792268cde3f754d85b7
https://doi.org/10.1109/jssc.2017.2777455

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A 12 MHz BW, 80 dB SNDR, 83 dB DR, 4th order CT-ΔΣ modulator with 2nd order noise-shaping and pipelined SAR-VCO based quantizer

Autor: Kartikeya Mayaram, Terri S. Fiez, Siladitya Dey

Publikováno v: CICC

A 2nd order noise shaping, SAR-VCO based hybrid quantizer is introduced. The SAR quantization error is available as a residue voltage at the end of the SAR conversion. This residue voltage is input to the VCO quantizer. Thus, the non-linear VCO quant

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9b81a367527229b3643d5bbb3a94aca
https://doi.org/10.1109/cicc.2019.8780200

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0.9V, 79.7dB SNDR, 2MHz-BW, Highly linear OTA-less 1-1 MASH VCO-based ΔΣ with a Novel Phase Quantization Noise Extraction Technique

Autor: Ramin Zanbaghi, Siladitya Dey, Kartikeya Mayaram, Hamidreza Maghami, Justin B. Goins, Hossein Mirzaie, Pedram Payandehnia, Terri S. Fiez

Publikováno v: CICC

In this paper a novel technique is introduced to extract the quantization noise of a multi-phase VCO-based quantizer (VCOQ) in the time domain as a PWM signal. Using this technique, a new highly linear VCO-based 1-1 MASH delta-sigma ADC structure is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59efa7e766de27e24b50bd0ac2646a0a
https://doi.org/10.1109/cicc.2019.8780126

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350 mV, 5 GHz Class-D Enhanced Swing Differential and Quadrature VCOs in 65 nm CMOS

Autor: Terri S. Fiez, Kartikeya Mayaram, Justin B. Goins, Ankur Guha Roy, Siladitya Dey

Publikováno v: IEEE Journal of Solid-State Circuits. 50:1833-1847

A new enhanced swing class-D VCO which operates from a supply voltage as low as 300 mV is presented. The architectural advantages are described along with an analysis for the oscillation frequency. Prototype differential and quadrature variants of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e1cd404159df6b0b73b15c114057747
https://doi.org/10.1109/jssc.2015.2420677

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A 50 MHz BW 73.5 dB SNDR two-stage continuous-time ΔΣ modulator with VCO quantizer nonlinearity cancellation

Autor: Kartikeya Mayaram, Terri S. Fiez, Karthikeyan Reddy, Siladitya Dey

Publikováno v: CICC

A two-stage continuous-time (CT) ΔΣ modulator with VCO quantizer (VCOQ) is presented. The presented modulator suppresses the VCOQ Voltage-to-Frequency nonlinearity through dual path cancellation to achieve high linearity. As an added advantage, thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::546bdb656349458f75e3a2dbd957b2e0
https://doi.org/10.1109/cicc.2017.7993657

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