Title :
A low voltage CMOS differential/floating bandgap voltage reference circuit
Author :
Lee, Edward K. F.
Author_Institution :
Alfred Mann Found., Santa Clarita, CA, USA
Abstract :
A 1V CMOS differential/floating bandgap reference circuit was implemented in a 0.18μm CMOS process. The bipolar bandgap core was biased by a differential input multiple-output transconductor driven by a fully differential opamp. The common-mode output voltage, Vcm, and the differential output voltage, Vdr, are both temperature compensated. The current consumption at 1V was 36μA. The untrimmed temperature coefficients for Vdr and Vcm were 89.3ppm/°C and 102.9ppm/°C, respectively. The line regulation was 2.9mV/V and the load regulation was 0.52mV/mA.
Keywords :
CMOS integrated circuits; operational amplifiers; reference circuits; bipolar bandgap core; common-mode output voltage; current 36 muA; differential input multiple-output transconductor; differential output voltage; floating bandgap voltage reference circuit; fully differential opamp; low voltage CMOS differential circuit; size 0.18 mum; voltage 1 V; CMOS integrated circuits; Current measurement; Impedance; Low voltage; Photonic band gap; Temperature measurement; Voltage control;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7168677
