Table 4: DCOC circuit performance summary and comparison.

[12]This work

Technology0.18  m CMOS0.18 μm CMOS
Bandwidth (MHz)11/222
Gain range (dB)−6~580~60
Gain step (dB)21
Current consumption (mA)6.122.1
DC offset after calibration (mV)1003.5
Gain-based calibrationNoYes