IEEE Journal of Solid-State Circuits · 1996 · 28 citations · 7 references
EngineeringComputer EngineeringElectrical EngineeringAnalog ElectronicsLow-power DesignMicroelectronicsAnalog FiltersAnalog Integrated CircuitsCmos Circuit DesignDigital Integrated CircuitsLow-noise Circuit DesignNoise In Analog CircuitsCmos Analog Integrated CircuitsDynamic RangeLow-power Active FiltersLow-voltage Cmos DesignPower ConsumptionSwitched-capacitor CircuitsSwitched-capacitor FiltersVoltage-controlled Filters
A fully differential fifth-order SC filter that can operate from power supplies as low as 1.5 V featuring a -80 dB THD up to 4 V/sub pp/ output voltage is presented. A measured p-weighted noise of 120 /spl mu/V/sub rms/ leads to a dynamic range of 81.5 dB. This circuit is used as reconstruction filter for a low voltage 14-b DAC. The very low voltage operation has been possible by integrating a regulated voltage-multiplier on the same chip. The filter active area is 0.54 mm/sup 2/ in a 0.8 /spl mu/m CMOS technology. Typical power consumption is 0.8 mW at 1.5 V supply.
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