A Power-Efficient High-Drive Current Mirror Combining a Regulated Cascode Topology with a Non-Linear CCII-Based Feedback
ELECTRONICS(2024)
Abstract
This brief presents a continuously regulated current mirror topology capable of providing a wide range of currents with high-precision and speed control features. The circuit combines a non-linear current-mode feedback solution for fast and energy-efficient operation with an input-referred regulated-cascode configuration for precise current mirroring. The proposed implementation has an output current ranging from 100 mu A to 2 mA, exhibits a fast response time of approximate to 100 ns for the full range steps, while ensuring a high power efficiency (>90%) and low current copy errors (<0.5%).
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Key words
CMOS analog design,current mirror,current conveyor,non-linear feedback,high-current drive
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