| This work | Lu’s [4] amplifier | Weng’s [4] amplifier | Hong’s[5] amplifier | |
|---|---|---|---|---|
| Process technology | 0.35μm CMOS | 0.35μm CMOS | 0.35μm CMOS | 0.35μm CMOS |
| VDD | 3.3 | 5V | 3.3V | 5V |
| Input/Output range | 0~3.3V | 0~5V | 0.05~3.25V | 0~5V |
| Noise @ 1kHz |
24.92n
|
NA | NA | NA |
| DC gain | 98 dB | 82 dB | 65 dB | NA |
| Unity-gain frequency | 60MHz | 3.6MHz | 750 kHz | NA |
| Phase margin | 60° | 80° | 50° | >45° |
| Slew rate | 154 V/μs | NA | NA | NA |
| Offset voltage | 25.78μV | 0.48mV | NA | 6.1mV |
| Active area | 252x235 m2 | 103x40 m2 | 86x73.5 m2 | 100x100 m2 |