Raytheon Company

M V Kolluri

Clyde M Brown, Jr

An electronic circuit, suitable for use in a digital-to-analog converter, wherein a ladder network is provided to obtain a 2:1 successive reduction in the amount of current flow through successive shunt arms of the ladder network. The ladder network includes a plurality of serially coupled resistance means, at least a portion thereof comprising a resistor and a serially coupled transistor, and a plurality of shunt coupled resistors disposed in the shunt arms of the ladder network. A plurality of pairs of switching transistors, each pair thereof being adapted for coupling to a pair of complmentary switching signals produced in response to a bit of the digital word being converted, each one of the shunt resistors being coupled to a corresponding one of the pairs of switching transistors.

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Sunnyvale, CA, United States of America

M V Kolluri