Title :
A 1.2 V bandgap reference based on transimpedance amplifier
Author :
Jiang, Yueming ; Lee, Edward K F
Author_Institution :
Dept. of Electr. Eng. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
For practical implementation of a typical bandgap reference, the minimum supply voltage is usually over 1.8 V mainly due to the limited input common mode range of the opamp used in the bandgap reference. In this paper, a low voltage bandgap reference using a transimpedance amplifier that does not have this limitation is proposed. Based on this technique, a 1.2 V bandgap reference was implemented in a 1.2 μm CMOS process (VTN≈0.53 V and VTP≈-0.91 V) with bipolar option. The variations of the output voltage over temperature (0°C⩽T⩽100°C) were measured to be less than ±1% without resistor trimming
Keywords :
CMOS analogue integrated circuits; low-power electronics; operational amplifiers; reference circuits; 0 to 100 C; 1.2 V; 1.2 micron; CMOS process; LV bandgap reference; low voltage operation; opamp; transimpedance amplifier; Analog circuits; CMOS process; Digital circuits; Low voltage; MOSFETs; Photonic band gap; Resistors; Temperature; Threshold voltage; Virtual manufacturing;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.858738
