S. M. Rezaul Hasan
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View article: On the exact mid-band gain of the CMOS OTA with low-voltage-cascode-current-mirror
On the exact mid-band gain of the CMOS OTA with low-voltage-cascode-current-mirror Open
This article presents an exact mid-band gain-expression for the CMOS operational-transconductance-amplifier (OTA) with low-voltage-cascode-current-mirror (LVCCM) load. Its small-signal analysis is not available in any CMOS text-book or oth…
View article: Ultraviolet-C Photoresponsivity Using Fabricated TiO2 Thin Films and Transimpedance-Amplifier-Based Test Setup
Ultraviolet-C Photoresponsivity Using Fabricated TiO2 Thin Films and Transimpedance-Amplifier-Based Test Setup Open
We report on fabricated titanium dioxide (TiO2) thin films along with a transimpedance amplifier (TIA) test setup as a photoconductivity detector (sensor) in the ultraviolet-C (UV-C) wavelength region, particularly at 260 nm. TiO2 thin fil…
View article: A Process-Based Temperature Compensated On-Chip CMOS VHF VCRO in 130-nm Si-Ge BiCMOS by Implementing an Empirical Control Equation
A Process-Based Temperature Compensated On-Chip CMOS VHF VCRO in 130-nm Si-Ge BiCMOS by Implementing an Empirical Control Equation Open
This paper presents a low-power CMOS temperature and process compensated 150.9 MHz Very-high-frequency (VHF) voltage-controlled-ring-oscillator (VCRO) for on-chip integration. The design employs a CMOS temperature-sensor and novel feedback…
View article: A 6 GHz Integrated High-Efficiency Class-F−1 Power Amplifier in 65 nm CMOS Achieving 47.8% Peak PAE
A 6 GHz Integrated High-Efficiency Class-F−1 Power Amplifier in 65 nm CMOS Achieving 47.8% Peak PAE Open
This paper reports a “single-transistor” Class-F−1 power amplifier (PA) in 65 nm CMOS, which operates at the microwave center frequency of 6 GHz. The PA is loaded with a Class-F−1 harmonic control network, employing a new “parasitic-aware”…
View article: On the <i>g</i> <sub>m</sub>-Boosted Miller-Effect Minimized Inverter-Cascode Transimpedance Amplifier for Sensor Applications
On the <i>g</i> <sub>m</sub>-Boosted Miller-Effect Minimized Inverter-Cascode Transimpedance Amplifier for Sensor Applications Open
This paper presents the small-signal operation of a -boosted inverter-cascode transimpedance amplifier which has not been reported previously and whose comprehensive analysis is not available in any reported article or text-book. A simplif…
View article: Extra-Low-Frequency Pulse Stimulated Conformational Change in Blood-Cell Proteins and Consequent Immune Activity Transformation
Extra-Low-Frequency Pulse Stimulated Conformational Change in Blood-Cell Proteins and Consequent Immune Activity Transformation Open
Objective: investigation of the extra-low-frequency (ELF) stimulation effect on blood-cell proteins, that causes variation in its electrostatic-state. A hypothesis that this results in the conformational change in the blood-cell proteins w…
View article: Computationally Minimized X-Part for FX Correlator in Big-Data Interferometers
Computationally Minimized X-Part for FX Correlator in Big-Data Interferometers Open
Big-data is a challenging domain for high-throughput digital signal processing (DSP), especially in global-projects like the square kilometer array. The composite input data rate for correlator in this system is more than 11 Tb/s, which im…
View article: Dual-Band Waveform Generator With Ultra-Wide Low-Frequency Tuning-Range
Dual-Band Waveform Generator With Ultra-Wide Low-Frequency Tuning-Range Open
This paper presents a novel mixed-signal low-power dual-band square/triangular waveform generator (WFG) chip with a wide low-frequency tuning range for medical bio-electric stimulation therapy. It consists of a relaxation oscillator compri…