| 摘要 |
A circuit and a related method to measure efficiently a load current in an integrated circuit using a current mirror configuration has been achieved. The current mirror configuration comprises three branches, a biasing branch, a load branch, and a measurement branch. The biasing branch comprises a current source and two transistors, the load branch comprises a load and two transistors, and the measurement branch comprises a means of measurement and two transistors. The biasing branch is attached to the load branch in a cascode mirror configuration and the measurement branch is also attached to the load branch in a cascode mirror configuration. The current in the measurement branch is linearly correlated to the current in the load branch and provides therefore an efficient way to measure the load current without any distortion of the load current.
|
