This paper presents a CMOS floating tunable differential resistance, which has the property of being positive with respect to common-mode signals while being negative for differential signals. The designed circuit is simulated in UMC 180 nm CMOS process: simulations show that the negative differential resistance can be varied in a broad range, from 23.5 kΩ to 3.8 MΩ.
- CMOS integrated circuits
- Negative differential resistance
- Small signal analysis