In this method, a reference current is generated by a circuit, and then replicated at other circuits by current mirror or current steering. They can be used as current sources or current sinks.1

Current source easily synthesized from current source using current mirror circuit. Multiple current sources and sinks with different magnitudes can be synthesized from a single current source. …

A frequently asked question, not answered by the guide, has been: “How do I make the world’s most accurate current source and current sink?” Figures 1 and 2 respectively show the circuits …

An ideal current source is a circuit that supplies constant current irrespective of the load voltage requirement. However, in practice, the output voltage range over which the current source can …

Motivation Questions: Are there better ways to realize on-chip current sources to bias circuits? Are there good ways to generate on-chip voltage levels to bias circuits?

The current source discussed here has an output resistance about 25 times larger than that of a single transistor current source. This current source improves the common-mode input range …

To implement this one has to decide what quiescent current is required for the current source and what the quiescent voltage of the collector should be. The latter is given by the quiescent …