Analog Integrated Circuits and Signal Processing

In this paper, a 9-bit 1.3 GS/s single channel SAR ADC is presented. In conventional SAR ADCs, the capacitive DAC size grows exponentially with respect to converter resolution. This results in both signal bandwidth and conversion speed reduction. The ...

Current sensing is important in various applications. The Utopia 2 Application Specific Integrated Circuit (ASIC) was developed in AMS 0.35 $$\upmu \hbox {m}$$μm technology for radiation monitoring based on ionization chambers. The ASIC is able to ...

In this paper a simple method to reduce the switching energy of capacitive digital-to-analog converters (DACs) in low-power successive approximation register analog-to-digital converters (ADCs) is described. The method is based on the well-known ...

This paper presents a 14-bit Incremental Sigma-Delta $$(\varSigma \varDelta) $$(ΣΔ) analog-to-digital converter suitable for column wise integration in a CMOS image sensor. A two step conversion is performed to improve the conversion speed. As the same $...

Low power analog-to-digital converters (ADCs) in energy constrained devices, such as wireless sensor readout modules, often target dynamic resolution scalability with application context to reduce the average power consumption. This work implements such ...

This research presents a discrete-time transmission line model based on the propagation of travelling waves. In this approach, the transmission line is emulated by means of many interconnected unit delay cells implemented with switched-capacitor (SC) ...

A novel pulse generation method based on current-mode excitation circuit and transmission line resonator is proposed. The technique aims at an efficient pulse generation with high center frequency for applications with low duty cycle. It features quick ...

This paper proposes a new architecture of a time-to-digital converter (TDC) based on a self-timed ring (STR) oscillator with sub-gate delay resolution. The proposed TDC can virtually achieve as fine as desired time resolution by simply increasing its ...

In this paper, we present a low-power high-performance digital predistorter (DPD) for the linearization of wideband RF power amplifiers (PAs). It is based on the novel FIR memory polynomial (FIR-MP) predistorter model, which significantly augments the ...

Smart vision systems on a chip are promising for embedded applications. Currently, flexibility in the choice of integrated pre-processing tools is obtained at the expense of total silicon area and fill factor, which are otherwise optimized provided that ...

Due to the intensive use of discrete transforms in picture coding, the search for fast and power-efficient approaches for their hardware implementation gains importance. The Discrete Tchebichef Transform (DTT) represents a discrete class of the ...

This paper presents a comprehensive review of ambient RF energy harvester circuitry working on integrated circuits. The review covers 3 main blocks in an RF energy harvesting system implemented on chip. The blocks are the rectifier, impedance matching ...

This work describes several electronic electrostatic generators that can be built using two pairs of complementary variable capacitors, in a way that dispenses control circuits for their operation. In all cases, a basic unstable generator based on an ...

In this paper, a one shot pulse inductor boost converter is presented which provides 4 V output at 60 ms of delay using 0.15 V vibration source. Energy harvesting plays an important role in biomedical implants sensors where the extended life time is the ...

We present a 60 GHz phased array system that combines several key technologies to realize 10 GHz bandwidth coverage. Particularly, a tightly coupled dipole array centered at 60 GHz is designed and tested for its wideband performance. The tightly coupled ...

In this paper, a frequency synthesizer, based on a type-2, third order phase locked loop (PLL), covering the frequency range of 0.9---5.4 GHz using three voltage controlled oscillators, is implemented using a 0.13-$$\upmu \hbox {m}$$μm CMOS technology. ...

In this paper, input impedance characteristics of N-path filters is used to reject standard blockers at the input port of a receiver front-end. Due to using variable capacitors in the multiphase LO generator, the results of each performance parameter of ...

In some applications such as short-range radars, a large target can desensitize the receiver. A high dynamic range low-noise amplifier (LNA), as a key component of a transmitter/receiver module, can improve the entire system performance. This study ...

An energy-efficient switching method for successive approximation register analog to digital converter is presented in this letter. The proposed two-step switching scheme using the goblet architecture achieves 99.52% less switching energy and 21.09% area ...