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A digital-controlled oscillator (DCO) employing on-chip coplanar waveguide (CPW) resonator is proposed for 5 GHz-band wireless communication applications. A 10 bit DCO using on-chip designed, fabricated and tested. By comparing the measured results on the fabricated chip in 0.18 mum CMOS technology, it has noted that the proposed DCO employing on-chip CPW resonator is smaller in size and frequency-tuning...
This paper discusses the design of a 60 GHz low noise amplifier (LNA) using a standard low power SOI CMOS process from ST Microelectronics. First, we outline the technology as well as the mm-wave design challenges. Using recent work on coplanar waveguide (CPW) modeling, we describe how it's possible to use parametric, 3D electromagnetic simulation to complete or replace analytical models of on-chip...
This paper describes a comparative analysis between two topologies of operational amplifiers to design a 40 MS/s 12-bit pipeline analog to digital converter (ADC). The analysis includes AC and transient simulation to select the proper topology. This ADC is implemented in a 0.35 mum AMS CMOS technology with 3.3 V single power supply. The capacitors and selected operational amplifiers were scaled for...
This paper introduces a novel current sense amplifier (CSA) in sub-32nm fully depleted (FD) double-gate (DG) silicon-on-insulator (SOI) technology with planar independent self-aligned gates. A new architecture is proposed which takes advantage of the back gate in order to improve circuit properties. Compared to the reference circuit, the new architecture proves to be faster (21% sensing delay decrease),...
Advances in micromachining technology can facilitate the integration of SAW (Surface Acoustic Wave) devices and CMOS circuitry on IC scale substrate for Monolithic fabrication. The optimal design and performance of these filters can be reached by using new Smart materials. The key component in the structure of the SAW device is the piezoelectric materials used which depends mainly on some important...
In this paper, the characteristics of the basic current mirror and the continuous-time current-mode current mirror integrator are analyzed. Using the two unlossy loop integrators and the basic current mirrors, the biquad circuit block is implemented. The signal flow graph (SFG) and the improved leap-frog (ILF) structure are simple to implement the six-order band pass filters. Exploring PSPICE9.1 simulation...
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