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1. 发明授权

US4308467A Electronic circuitry 失效
标题翻译：电子电路
公开(公告)号：US4308467A
公开(公告)日：1981-12-29
申请号：US90813
申请日：1979-11-02
申请人： M. V. Kolluri , Clyde M. Brown, Jr.
发明人： M. V. Kolluri , Clyde M. Brown, Jr.
IPC分类号： H03M1/00 , H03K3/353
CPC分类号： H03M1/785
摘要： 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.
摘要翻译：一种适用于数模转换器的电子电路，其中提供梯形网络以获得通过梯形网络的连续分流臂的电流量的连续减少2:1。梯形网络包括多个串联电阻装置，其至少其一部分包括电阻器和串联耦合晶体管，以及设置在梯形网络的分流臂中的多个分流耦合电阻器。多对开关晶体管，其每一对适于耦合到响应于被转换的数字字的位而产生的一对补充的开关信号，每个分流电阻器耦合到相应的一对的开关晶体管。

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