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Dengue fever has a variable clinical spectrum ranging from asymptomatic infection to life-threatening dengue haemorrhagic fever and dengue shock syndrome. However, neurological complications, in general, are unusual. Dengue encephalopathy is not an unknown entity; however, dengue encephalitis, a direct neuronal infiltration by the dengue virus, is an(More)
A wide bandwidth, high sample rate 3 order continuous-time ΔΣ modulator using VCO-based integrators is presented. Non-idealities caused by VCOs at the modulator frontend are addressed using both circuitand architecture-level techniques. Fabricated in 65nm CMOS, the prototype modulator operates at 1.28GS/s and achieves a dynamic range of 75dB, SNR of 71dB in(More)
A wide bandwidth VCO-based continuous-time ΔΣ modulator that uses combined phase and frequency feedback to mitigate VCO non-linearity and ease DEM timing requirement is presented. Fabricated in 65nm CMOS process, the prototype modulator operates at 1.2GS/s and achieves 71.5dB SNDR in 50MHz bandwidth while consuming 54mW of power, which translates to an FoM(More)
A feed-forward noise cancellation (FFNC) technique to improve the power supply noise rejection (PSR) of a low dropout regulator (LDO) is presented. The proposed FFNC operates in conjunction with a conventional LDO and extends the noise rejection bandwidth by nearly an order of magnitude. Fabricated in 0.18µm CMOS, at 10mA load current, the prototype(More)