Sensitivity, Noise and Resolution in a B
-Modified Foundry-Made ISFET with Miniaturized Reference Electrode for Wearable Point-of-Care Applications
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We present a comparative study, at 300 K and at low longitudinal field, of the DC characteristics and the low-frequency noise in the drain current of GaAs/AlGaAs MODFETs which, ideally, differ only by the doping mode of the AlGaAs layer. The higher 1/f-lik ...
A CMOS low-noise amplifier (LNA) with two variable gain ranges of 6 and 9 dB is presented. Variable gain is realized by using linearized MOS resistive circuits (MRCs) as voltage-controlled resistors. One of these resistors is located in the feedback loop o ...
Today's world of electronics becomes more and more digital and therefore CMOS becomes the dominant technology. A CMOS process compared to a bipolar process offers several advantages, mainly a low power consumption which is important for portable systems po ...
We consider a stochastic differential equation in which the noise is the sum of a white noise, a Poisson noise and a continuous time Markov chain. The probability densities governing the dynamics solve high order partial differential equations and the solu ...
Collective Thomson scattering, using a high-power pulsed D2O laser at 385-mu-m and a heterodyne receiver system, has provided local ion temperature (T(i)) measurements of the plasma in the tokamak chauffage Alfven (TCA) tokamak. Recent improvements in the ...
New photoemission data are presented for a series of Ce-doped or undoped, reduced or nonreduced, Nd cuprates. The data, taken with high signal-to-noise level in the constant-initial-state mode, demonstrate the presence of Cu+, in contrast with previous pho ...
A new holographic technique based on a numerical reconstruction method is presented and applied to endoscopic holograms. The hologram is obtained by the interference between the light reflected by the object and a reference beam taken as a plane wave trave ...
Photoplethysmography (PPG) enables wearable vitals monitoring. Nevertheless, it is still limited by the LEDs driving current in the range of mA. We present a PPG sensor integrating an array of dedicated pinned-photodiodes (PPD) with the full readout chain ...
The responses of ion-sensitive FETs (ISFETs) with thermally grown SiO//2 gate regions and of electrolyte-SiO//2-Si (EOS) structures to stepwise changes in the pH were studied. A mechanism is also proposed in which one or other hydrogen-bearing species inte ...