Abstract
The cascode current mirror is the most widely used block in analog circuit design, and wide voltage swing operation is essential for low-supply voltage applications. In wide dynamic-range applications, such as current sensing in DC-DC converters, the current mirror must maintain high accuracy across a wide range of reference currents while enabling wide voltage swing operation at the maximum reference current. In this paper, a wide-swing self-biased cascode current mirror for wide dynamic-range applications is described. Unlike conventional structures, the proposed design is biased by a non-isolated active device without using an extra current path or an isolated active device. The proposed current mirror demonstrates higher accuracy for a wide-range of reference currents compared to prior wide-swing cascode current mirror designs and offers a more compact design.
| Original language | English |
|---|---|
| Pages (from-to) | 67-70 |
| Number of pages | 4 |
| Journal | Journal of Semiconductor Technology and Science |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 2025 |
| Externally published | Yes |
Keywords
- Cascode current mirror
- low-voltage
- self-biased
- wide dynamic-range
- wide-swing