A sub-1V bandgap reference circuit using subthreshold current

— A bandgap reference circuit employing subthreshold current is proposed. Only a small fraction of VBE is utilized to generate the reference voltage of 170mV. Since the subthreshold current of MOSFET’s is used as the current source, the circuit only consumes 2.4µW at supply voltage of 1V. It was fabricated using 0.18µm CMOS triple-well technology on chip area of 0.029mm2 . Both of the measurement and the simulation

• Type: Conference
• Year: 2005
• Where: ISCAS
• Authors: Hongchin Lin, Chao-Jui Liang
• Keywords: Bandgap Reference Circuit, ISCAS 2005, Reference Voltage, Subthreshold Current