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A new bipolar four-quadrant operational amplifier operating at a power supply voltage of 0.8 V and with a supply current of 800 μA is here presented and illustrated. It features low input offset, low bias current, low noise, low crossover distortion and a rail-to-rail output swing. Control circuits ensuring minimum and maximum current limits for the output transistors have been incorporated. The biasing...
An integrated temperature sensor, operating with low voltage supply in the temperature range of 0-100??C, is here presented. The working principle is based on the fact that two different currents flowing into bipolar transistors produce a ??Vbe proportional to the absolute temperature. Two low voltage operational amplifiers with low input offset voltage make, the whole structure able to work with...
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