Semi-conductor circuit arrangement
A circuit device and semiconductor technology, which is applied in the direction of electrical components, electrical signal transmission systems, instruments, etc., can solve the problem of increasing the power consumption of the modulator circuit, and achieve the effect of reducing power consumption and space requirements
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[0024] FIG. 1 schematically shows the circuit structure of a semiconductor circuit device according to an embodiment of the present invention. The semiconductor circuit device is configured for an inner loop of a ΣΔ modulator circuit, and includes an adding circuit 20 , a quantization circuit 40 , a digital-to-analog conversion circuit 30 and a voltage-current conversion circuit 10 .
[0025] The digital-to-analog conversion circuit 30 can convert the digital input signals DACin1 , . . . DACinm into current signals supplied to the addition circuit 20 . The digital-to-analog conversion circuit 30 is configured as a digital-to-analog conversion circuit based on parallel currents including m number of unit cells 36 . Each unit cell 36 includes a current source device that can provide a specific direct current, and it depends on the digital input signal being conducted to the first, positive output of the differential current output of the digital-to-analog conversion circuit 30, ...
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Abstract
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