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A 6-bit time-based folding matrix multiplication technique for support vector machine (SVM) classification is proposed. A voltage controlled oscillator (VCO) based analog-to-digital converter (ADC) performs in-situ matrix multiplications (MM) along with analog to digital conversion. It also offers a low supply voltage of operation (down to 0.4V) and an input range of 0.8V, drawing a total of 376nA...
This work presents a process, voltage and temperature (PVT) invariant tunable voltage reference generator in 180 nm CMOS technology. Using weighted averaging of tuned PTAT and CTAT voltages at zero temperature coefficient point, the proposed design exhibits only ±0.28% variation in post-layout simulation across process corners over a temperature range of-25 degree C to 100 degree C. Maximum deviation...
A novel ultra low power, area-efficient, current-mode instrumentation amplifier (CMIA) with embedded bandpass filter, for acquisition of bio-potential signals is presented. A novel bias front-end is also presented, which achieves CMRR of 195dB at 1Hz in the presence of ±5% component mismatch. The CMIA has a tunable bandwidth, from 160Hz to 7.2kHz with input referred rms noise of 2.24 µV in frequency...
This paper presents a novel bias circuit for achieving process and temperature invariant resistor using a MOSFET operating in triode region. The proposed circuit comprises of an enhanced process tracking circuit and complementary to absolute temperature (CTAT) voltage generators. The proposed circuit has been designed and optimized in 180nm mixed-mode CMOS technology. Exhaustive Montecarlo simulations...
This paper presents a micro cantilever based piezo-resistive sensor and its fabrication process along with two different techniques for signal conditioning of sensor output aimed for artificial nose applications. The proposed micro-cantilevers feature a special coating of 6-Marcaptonicotonic acid (6-MNA) on one side of the cantilever which leads to a selective reaction of the target analyte molecules...
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