Switching method Switching energy (CV2) Energy saving (%) Area reduction (%) Extra reference voltage VCM variation
Conventional 1363.3 0 0 No 0
Monotonic[2] 255.5 81.2 50 No 512LSB
Bi-directional [8] 234.2 82.9 75 Yes 64 LSB
Vcm-based[6] 170.2 87.54 50 Yes 0
Split-cap [9] 425.7 68.8 0 No 0
CAS [10] 344.1 74.8 50 No 1LSB
Tri-Level [11] 42.42 96.9 75 No 64LSB
Work in [12] 28.8 97.9 75 Yes 0
Proposed scheme 85.7 93.7 75 No 1LSB