Franz Schlögl, Horst Zimmermann. Opamp with 106 dB DC gain in 120nm digital CMOS. In José E. Franca, Rudolf Koch, editors, ESSCIRC 2003 - 29th European Solid-State Circuits Conference, Estoril, Portugal, September 16-18, 2003. pages 381-384, IEEE, 2003. [doi]