A Sub-1V Power Supply Sub-bandgap with an Extended Voltage and Temperature Range
نویسندگان
چکیده
This paper presents 1μW curvature-corrected bandgap reference that is capable of operating with an input power supply range of 0.88-5.5V. A 0.3V precision voltage reference is implemented with 3-stage RNMC (Reversed Nested Miller Compensation) operational amplifier and a novel PTAT current source to compensate the thermal nonlinearity of the base-emitter voltage. An experimental prototype generates a line regulation performance of 20ppm/°C (a standard deviation of ±1.5mV before trimming) over an extended temperature range from -50 to 150°C.
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DESIGN AND ANALYSIS OF SUB 1-V BANDGAP REFERENCE (BGR) VOLTAGE GENERATORS FOR PICOWATT LSI’s
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