Title :
A CMOS bandgap reference circuit with a temperature coefficient adjustment block
Author :
Issao Ishibe, Eder ; Navarro Soares, Joao
Author_Institution :
Electr. Eng. Dept., Univ. of Sao Paulo, Sao Carlos, Brazil
Abstract :
A bandgap reference source with a temperature coefficient adjustment block was proposed. The topology employs current summation and the circuit was designed through a metaheuristic algorithm in an AMS 0.35-um CMOS technology and BSIM3V3 model. Monte Carlo simulations show that the designed circuit has an average temperature coefficient of 27 ppm/0C, average line regulation of 324 ppm/V, and average current consumption of 3.1 uA in a 1 V power supply. The 3-bit temperature adjustment block allowed a maximum temperature coefficient of 26.6 ppm/0C for 90% of the circuits without interfering in the reference voltage output or the line regulation.
Keywords :
CMOS integrated circuits; Monte Carlo methods; energy gap; integrated circuit design; network topology; reference circuits; BSIM3V3 model; CMOS bandgap reference circuit; Monte Carlo simulations; bandgap reference source; circuit design; current 3.1 muA; current summation; line regulation; metaheuristic algorithm; reference voltage output; size 0.35 mum; temperature coefficient adjustment block; topology; voltage 1 V; Genetic algorithms; Histograms; Photonic band gap; Power supplies; Temperature measurement; Topology; Transistors; CMOS; bandgap; voltage reference;
Conference_Titel :
Integrated Circuits and Systems Design (SBCCI), 2013 26th Symposium on
Conference_Location :
Curitiba
DOI :
10.1109/SBCCI.2013.6644869
