| 摘要 |
Improved current sources which provide n output units of current responsive to m input units of current are constructed by connecting (m+n)2 transistors in a square array configuration, controlled by (m+n) control devices. The array contains (m+n) columns each of which conducts a current the magnitude of which is desired to equal the magnitude of the current flowing in every other column, and has a maximum deviation only in proportion to [1/(1+ beta )]4 where beta is the common emitter current gain of the transistors.
|
