# overview
My research focuses on the design and implementation of mixed-signal processing systems, techniques and algorithms that jointly design for analog and digital systems with the objective of reducing power consumption and complexity or enhancing performance of high-speed and high dynamic range wireline and wireless communication systems.

# keywords[]
4603 Computer Vision And Multimedia Computation

# keywords[]
4603 Computer Vision And Multimedia Computation

# keywords[]
4009 Electronics, Sensors And Digital Hardware

# keywords[]
Image Enhancement/restoration (noise And Artifact Reduction)

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Swept Source Optical Coherence Tomography (ss-oct)

# keywords[]
Swept Source Optical Coherent Tomography (ssoct)

# keywords[]
4009 Electronics, Sensors And Digital Hardware

# keywords[]
Sampling Speed And Broadband Applications

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Interpolated Intercept Point (iip2, Iip3)

# keywords[]
4603 Computer Vision And Multimedia Computation

# keywords[]
4007 Control Engineering, Mechatronics And Robotics

# keywords[]
4009 Electronics, Sensors And Digital Hardware

# keywords[]
4009 Electronics, Sensors And Digital Hardware

# educationAndTraining[].organization.label
Pontifical Xavierian University - (Bogotá, Colombia)

# educationAndTraining[].organization.label
University of California, Berkeley - (Berkeley, California, United States)

# educationAndTraining[].organization.label
University of Delaware - (Newark, Delaware, United States)

# educationAndTraining[].organization.label
University of Delaware - (Newark, Delaware, United States)

# publications[].label
A 6 bit 10 GS/s TI-SAR ADC With Low-Overhead Embedded FFE/DFE Equalization for Wireline Receiver Applications

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
COMPRESSED DIGITAL BEAMFORMER WITH ASYNCHRONOUS SAMPLING FOR ULTRASOUND IMAGING

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
High-Speed A/D Conversion for Ultra-Wideband Signals Based on Signal Projection over Basis Functions

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Weighted Median Filters Admitting Complex-Valued Weights and Their Optimization

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Wideband Common-Gate CMOS LNA Employing Dual Negative Feedback With Simultaneous Noise, Gain, and Bandwidth Optimization

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Analytical framework and bandwidth optimisation of orthogonal frequency division multiplexing low-order multi-channel filter-bank receivers for achieving sampling clock-jitter robustness

# publications[].publisher
Institution of Engineering and Technology (IET)

# publications[].label
Kalman-Based Real-Time Functional Decomposition for the Spectral Calibration in Swept Source Optical Coherence Tomography.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Compressed UWB signal detection with narrowband interference mitigation

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Multiphase Multipath Technique With Digital Phase Shifters for Harmonic Distortion Cancellation

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Blocker-Tolerant RF-to-Digital Linearization With a Very Nonlinear Auxiliary Path

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Spectral Design of Weighted Median Filters: A General Iterative Approach

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Single Parity Check Forward Error Correction Method for High Speed I/O

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Weighted Median Based Filters for the Complex Domain

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Jitter cancellation method for continuous-time sigma-delta modulators

# publications[].label
A 1.8V, Sub-mW, Over 100% Locking Range, Divide-by-3 and 7 Complementary-Injection-Locked 4 GHz Frequency Divider

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Dithering and  Modulation in Mono-bit Digital Receivers for Ultra-Wideband Communications

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 6-b 1.6-GS/s ADC With Redundant Cycle One-Tap Embedded DFE in 90-nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 10 Gb/s Hybrid ADC-Based Receiver With Embedded Analog and Per-Symbol Dynamically Enabled Digital Equalization

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Statistical Modeling of Non-Linearity in Decision Feedback Equalizer-Based Mixed-Signal Receivers

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Sensitivity of single-bit continuous-time Delta Sigma analogue-to-digital converters to out-of-band blockers

# publications[].publisher
Institution of Engineering and Technology (IET)

# publications[].label
Compressive Spectrum Sensing Front-ends for Cognitive Radios

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Statistical Modeling of Metastability in ADC-Based Serial I/O Receivers

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 32 Gb/s ADC-Based PAM-4 Receiver with 2-bit/Stage SAR ADC and Partially-Unrolled DFE

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Compressed Power Spectral Density Estimation via Group-Based Total Variation Minimization

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
AN EFFICIENT ESTIMATION ALGORITHM FOR THE CALIBRATION OF LOW-COST SS-OCT SYSTEMS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Asynchronous Compressive Sensing in Radar Systems

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
The Spectral Calibration of Swept-Source Optical Coherence Tomography Systems Using Unscented Kalman Filter

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Sub-Nyquist Rate Compressive Sensing Data Acquisition Front-End

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].publisher
Institution of Engineering and Technology (IET)

# publications[].label
Digital Equalization With ADC-Based Receivers

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Broadband multicarrier communication receiver based on analog to digital conversion in the frequency domain

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Broadband High-Resolution 200 MHz Bandpass SigmaDelta Modulator with a Software-Based Calibration Scheme

# publications[].publisher
McGraw Hill Professional, Access Engineering

# publications[].label
Towards a Standard Mixed-Signal Parallel Processing Architecture for Miniature and Microrobotics.

# publications[].publisher
National Institute of Standards and Technology (NIST)

# publications[].label
A Jitter-Robust 40 Gb/s ADC-Based Multicarrier Receiver Front-End With 4-GS/s Baseband Pipeline-SAR ADCs in 22-nm FinFET

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Mixed-signal parallel Compressed Sensing and reception for Cognitive Radio

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Asynchronous Binary Compressive Sensing for Wireless Body Sensor Networks

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Process-Variation Resilient Current Mode Logic With Simultaneous Regulations for Time Constant, Voltage Swing, Level Shifting, and DC Gain Using Time-Reference-Based Adaptive Biasing Chain

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Analog-to-Digital Converter-Based Serial Links: An Overview

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
CMOS ADC-Based Receivers for High-Speed Electrical and Optical Links

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 25 GS/s 6b TI Two-Stage Multi-Bit Search ADC With Soft-Decision Selection Algorithm in 65 nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Corrections to A Sub-Nyquist Rate Sampling Receiver Exploiting Compressive Sensing [Mar 11 507-520]

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Electronic device for automatic calibration of swept-source optical coherence tomography systems

# publications[].label
Reduced area discrete-time down-sampling filter embedded with windowed integration samplers

# publications[].publisher
Institution of Engineering and Technology (IET)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
High-PSRR low-power single supply OTA (vol 46, pg 337, 2010)

# publications[].publisher
Institution of Engineering and Technology (IET)

# publications[].label
A 50-Gb/s Multicarrier Transmitter Using DAC-Based Polar Drivers in 22-nm FinFET

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Sixth-Order 200 MHz IF Bandpass Sigma-Delta Modulator With Over 68 dB SNDR in 10 MHz Bandwidth

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
The impact of ADC nonlinearity in a mixed-signal compressive sensing system for frequency-domain sparse signals

# publications[].label
A 6b 10GS/s TI-SAR ADC with embedded 2-tap FFE/1-tap DFE in 65nm CMOS

# publications[].label
Asynchronous compressed beamformer for portable diagnostic ultrasound systems.

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 32 Gb/s ADC-Based PAM-4 Receiver with 2-bit/Stage SAR ADC and Partially-Unrolled DFE

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Reference switching pre-emphasis-based successive approximation register ADC with enhanced DAC settling

# publications[].publisher
Institution of Engineering and Technology (IET)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Multi-Channel Nonlinearity Mitigation Using Machine Learning Algorithms

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Guest Editorial Special Issue on the 2023 ISICAS: A CAS Journal Track Symposium

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Sensitivity Analysis of Continuous-Time Delta Sigma ADCs to Out-of-Band Blockers in Future SAW-Less Multi-Standard Wireless Receivers

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Cross-Level Sampling for Bandwidth Effective Time Domain Fluorescence Lifetime Imaging Implementation (10499-48)

# publications[].publisher
SPIE, the international society for optics and photonics

# publications[].label
A CMOS Differential Noise Cancelling Low Noise Transconductance Amplifier

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Mixed-Signal Equalization Architectures for Printed Circuit Board Channels

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Modeling of ADC-Based Serial Link Receivers With Embedded and Digital Equalization

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Multi-Channel Receiver Nonlinearity Cancellation Using Channel Speculation Passing Algorithm

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 15 MHz square 600 MHz, 20 mW, 0.38 mm(2), Fast Coarse Locking Digital DLL in 0.13 mu m CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
LEAST MEAN SQUARED BACKGROUND CALIBRATION FOR OFDM MULTICHANNEL RECEIVERS

# publications[].label
Sensitivity Analysis of Pulse-Width Jitter Induced Noise in Continuous-Time Delta-Sigma Modulators to Out-of-Band Blockers in Wireless Receivers

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Analog to Digital Conversion of Ultra-Wideband Signals in Orthogonal Spaces

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Recurrent Neural Network Equalization for Wireline Communication Systems

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Ultra-Wideband Multicarrier Communication Receiver Based on Analog to Digital Conversion in the Frequency Domain

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 25GS/s 6b TI Binary Search ADC with Soft-Decision Selection in 65nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Asynchronous Compressive Multi-Channel Radar for Interference-Robust Vehicle Collision Avoidance Systems

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 15 MHz to 600 MHz, 20 mW, 0.38 mm2 Split-Control, Fast Coarse Locking Digital DLL in 0.13 $mu$m CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Towards an On-chip Signal Processing Solution for the Online Calibration of SS-OCT Systems

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Digitally assisted Analog Compressive Sensing

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Compressed Level Crossing Sampling for Ultra-Low Power IoT Devices

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Novel Continuous Time Ternary Encoding Based SS-OCT Calibration

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A Sub-Nyquist Rate Sampling Receiver Exploiting Compressive Sensing

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Mixed-Signal Equalization Architectures for Printed Circuit Board Channels

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 52-Gb/s ADC-Based PAM-4 Receiver With Comparator-Assisted 2-bit/Stage SAR ADC and Partially Unrolled DFE in 65-nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 35 dBm Output Power and 38 dB Linear Gain PA With 44.9% Peak PAE at 1.9 GHz in 40 nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Background ADC Calibration in Digital Domain

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 2.8-mW Sub-2-dB Noise-Figure Inductorless Wideband CMOS LNA Employing Multiple Feedback

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 6b 1.6GS/s ADC with Redundant Cycle 1-Tap Embedded DFE in 90nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Dual-Path Component Based Digital Receiver Linearization With a Very Non-linear Auxiliary Path

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 1.5GS/s 8b Pipelined-SAR ADC with Output Level Shifting Settling Technique in 14nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios

# publications[].label
A 38-GS/s 7-bit Pipelined-SAR ADC With Speed-Enhanced Bootstrapped Switch and Output Level Shifting Technique in 22-nm FinFET

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Feedforward spectral shaping technique for clock-jitter induced errors in digital-to-analogue converters

# publications[].publisher
Institution of Engineering and Technology (IET)

# publications[].label
Digitally-Based Calibration Techniques for RF Sigma Delta Modulators

# publications[].label
Jitter-Robust Multicarrier ADC-Based Serial Link Receiver Architecture

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
A 10Gb/s Hybrid ADC-Based Receiver with Embedded 3-Tap Analog FFE and Dynamically-Enabled Digital Equalization in 65nm CMOS

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Monobit digital receivers for ultrawideband communications

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# publications[].label
Emerging technologies in software defined receivers

# publications[].publisher
Institute of Electrical and Electronics Engineers (IEEE)

# researcherOn[].label
I-Corps: Low-Complexity Asynchronous Re-sampler for Optical Coherence Tomography

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# streetAddress
Texas A&M University; Electrical Engineering; 3128 TAMU

# etdChairOf[].label
Pacheco Barajas, Oscar Joseu (2017-08). Highly Efficient Spectral Calibration Methods for Swept-Source Optical Coherence Tomography. Master's Thesis.

# etdChairOf[].label
Pentakota, Krishna Anand Santosh Spikanth (2011-10). Digitally Assisted Multi-Channel Receivers. Master's Thesis.

# etdChairOf[].label
Zhou, Jun (2014-05). Sparsity-Aware Low-Power ADC Architecture with Advanced Reconstruction Algorithms. Doctoral Dissertation.

# etdChairOf[].label
Abdel Ghany, Ehab (2012-12). Linearity and Noise Improvement Techniques Employing Low Power in Analog and RF Circuits and Systems. Doctoral Dissertation.

# etdChairOf[].label
Raviprakash, Karthik (2010-10). Reduced Area Discrete-Time Down-Sampling Filter Embedded With Windowed Integration Samplers. Master's Thesis.

# etdChairOf[].label
Boampong, Lester (2018-01). Auxiliary-Path-Assisted Digital Linearization of Wideband Wireless Receivers. Master's Thesis.

# etdChairOf[].label
Ahmed, Ramy 1981- (2012-12). Jitter-Tolerance and Blocker-Tolerance of Delta-Sigma Analog-to-Digital Converters for Saw-Less Multi-Standard Receivers. Doctoral Dissertation.

# etdChairOf[].label
Kulkarni, Mandar Shashikant (2009-05). Implementation of a 1GHZ frontend using transform domain charge sampling techniques. Master's Thesis.

# etdChairOf[].label
Chen, Xi (2012-07). Sub-Nyquist Rate Sampling Data Acquisition Systems Based on Compressive Sensing. Doctoral Dissertation.

# etdChairOf[].label
Gupta, Robin (2017-12). Wide-Dynamic Range Image Sensor Prototype Based On Digital Readout Integrated Circuit. Master's Thesis.

# etdChairOf[].label
Kotte Prakasam, Pradeep (2010-07). Joint synchronization and calibration of multi-channel transform-domain charge sampling receivers. Master's Thesis.

# etdChairOf[].label
Chen, XI (2010-01). DESIGN OF THE TRANSCONDUCTANCE AMPLIFIER FOR FREQUENCY DOMAIN SAMPLING RECEIVER. Master's Thesis.