Table 3 Performance Metrics of Various Ramp Generators.
Ramp Generator | Power Consumption (mW) | Error voltage (v) | Slope Comparison with ideal ramp (0.0066) | Transistor count | Percentage of Slope Variation with Capacitance (± 10%) |
|---|---|---|---|---|---|
Cascode (Azais F. 2001) | 0.139 | 0.22 | 0.0055 | 14 | 19.4—5.8 |
Wilson | 0.371 | 0.99 | 0.0020 | 13 | 62.5—55.4 |
Super Wilson | 0.375 | 0.97 | 0.0030 | 14 | 59.3—51.3 |
High Swing Super Wilson | 0.149 | 0.22 | 0.0061 | 16 | 12.7—5.35 |
Proposed current mirror with Simple ramp generator | 0.15 | 0.06 | 0.0059 | 16 | 10.2—7.4 |
proposed current mirror with Adaptive ramp generator | 7.94 | 0.0 | 0.001 | 38 (with Bias Circuit) | 1–2 |
