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Current steering mode digital-to-analog converter circuit configured to generate variable output current
Current steering mode digital-to-analog converter circuit configured to generate variable output current
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机译:电流转向模式数模转换器电路,配置为生成可变输出电流
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摘要
A current source circuit is configured to receive a reference current at the input circuit path of a current mirror circuit. The current mirror circuit mirrors the reference current and generates mirror currents at a number of output circuit paths. A corresponding number of control transistors are connected in series with the output circuit paths. Each control transistor is selectively actuated in response to a control signal. A decoder circuit is configured to receive a variable control signal and generate actuation signals in response thereto to selective actuate the control transistors to pass the mirror current to an output node. At the output node, the passed mirror currents are summed to generate a variable output current. The variable current is monotonically modulated in response to the variable control signal.
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