– A curvature compensation technique for bandgap voltage references that utilizes an adaptive reference temperature is presented. This compensation technique is intended for high-resolution temperature-stable analogdigital converters. A test circuit had been designed in a 0.6 µm CMOS technology to implement this technique. The reference voltage has a simulated temperature coefficient of 2.3 ppm/ °C over the temperature range of –40 to 90 °C.
Kee-Chee Tiew, J. Cusey, Randall L. Geiger