Title :
A curvature compensation technique for bandgap voltage references using adaptive reference temperature
Author :
Tiew, Kee-Chee ; Cusey, Jim ; Geiger, Randall
Author_Institution :
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
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 analog-digital converters. A test circuit has 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.
Keywords :
analogue-digital conversion; circuit stability; compensation; reference circuits; -40 to 90 degC; 0.6 micron; adaptive reference temperature; bandgap voltage references; curvature compensation technique; high-resolution temperature-stable analog-digital converters; simulated temperature coefficient; Analog-digital conversion; CMOS technology; Circuit testing; Diodes; Photonic band gap; Switched capacitor circuits; Temperature dependence; Temperature distribution; Temperature sensors; Voltage;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010441
