Swathi Ramasahayam

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A duty cycle correction circuit (DCC) for high frequency clocks with fine resolution is designed and tested at 1.2V in 90nm CMOS process. Spice simulations show that this duty cycle corrector can adjust the output duty cycle to 50±0.5% with input clock at 500MHz and input duty cycle ranging from20% to 80%. DCC will not introduce any(More)
In this paper, a non-invasive blood glucose sensing system is presented using near infra-red(NIR) spectroscopy. The signal from the NIR optodes is processed using artificial neural networks (ANN) to estimate the glucose level in blood. In order to obtain accurate values of the synaptic weights of the ANN, inverse delayed (ID) function model of neuron has(More)
This paper describes the design of fourth order MASH ΣΔ interface for MEMS capacitive accelerometers which is capable of converting change in differential capacitance to a digital output. It employs a switched capacitor (SC) charge amplifier as front end block with open loop gain of 120dB and total integrated noise of 4.5µV from dc to 10 kHz(More)
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