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Use current-sink, current-source ICs as current mirrors

Posted: 30 Jan 2009     Print Version  Bookmark and Share

Keywords:current sinks  current mirror  MAX4123 

[Summary of tips] The 4-20 mA transmitters used in industrial current-control loops can be implemented as powered current sources, remote non-powered current sinks, or with several other IO combinations. Figure 1: A unity-gain, input-sink/output-sink current mirror.A useful building block for some of these applications is a precision current mir......
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