Cw. Huang et Tl. Sculley, AN ENHANCED LINEARITY SAMPLED-DATA VOLTAGE-AMPLIFIER, IEEE transactions on circuits and systems. 2, Analog and digital signal processing, 43(1), 1996, pp. 62-65
A sampled-data feedback circuit topology is presented for the implemen
tation of an enhanced linearity voltage amplifier that does not requir
e an operational amplifier in continuous-time feedback. By oversamplin
g the analog input signal, nonlinearities and gain errors of the inter
nal circuitry are overcome to obtain linearity beyond that of the indi
vidual components.