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A piecewise curvature-corrected bandgap reference (BGR) is presented. It features in utilizing a piecewise curvature-corrected current generator and an operational amplifier biased by a current proportional to absolute temperature (PTAT) to a conventional first order BGR. The piecewise current corrects the nonlinear temperature term of the first-order BGR in the higher temperature range (TR). The...
A novel and simple piecewise curvature-corrected bandgap voltage reference (BGR) is proposed. It features in employing temperature-dependent resistor ratio to get a piecewise corrected current, which corrects the nonlinear temperature dependence of the first-order BGR. The piecewise corrected current generator forms a negative feedback to improve the line regulation and power supply rejection (PSR)...
A 1-V piecewise curvature-corrected CMOS bandgap reference (BGR) is proposed. It features in utilizing piecewise corrected current to a conventional first-order current-mode BGR. The corrected current is zero, exponential with temperature and proportional to the squared temperature in the lower, middle and upper temperature range (TR). Simulated results indicate that proposed BGR achieves temperature...
An 8-bit analog-to-digital (A/D) converter from 1.3 V supply voltage in 0.18 mum CMOS technology without use of low-threshold MOS transistor is presented. The A/D converter features a low voltage reference generator, modified pipeline chopper amplifier and pre-equalized comparator. Simulation result shows the A/D converter achieves + 0.17 LSB differential nonlinearity (DNL), + 0.34 LSB integral nonlinearity...
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