A 40.4-dB Range, 0.73-dB Step, and 0.07-dB Error Programmable Gain Amplifier Using Gain Error Shifting Technique. - Lin-Sen Wang; Po-Chih Ku; Po-Ting Ko; Chi-Jung Chung; Liang-Hung Lu (IEEE Trans. Circuits Syst. II Express Briefs, 2019)