Title :
An Ultra Low Power Bandgap Operational at Supply From 0.75 V
Author :
Ivanov, Vadim ; Brederlow, Ralf ; Gerber, Johannes
Author_Institution :
Texas Instrum., Inc., Tucson, AZ, USA
fDate :
7/1/2012 12:00:00 AM
Abstract :
We present an ultra low power (200 nA current consumption) reverse bandgap voltage reference operational from supply voltages down to 0.75 V. The reference is a part of microprocessor system on chip implemented in a digital 130 nm CMOS process and has a total area of 0.07 mm2. The reference accuracy is ± 2.5% (5 sigma) over a temperature range of - 20 to 85°C without trimming. With trimming ± 0.5% accuracy is achieved.
Keywords :
CMOS digital integrated circuits; low-power electronics; microprocessor chips; reference circuits; system-on-chip; current 200 nA; digital CMOS process; microprocessor system on chip; size 130 nm; temperature -20 degC to 85 degC; ultra low power reverse bandgap voltage reference; Accuracy; Capacitors; Noise; Photonic band gap; Resistors; System-on-a-chip; Transistors; Voltage reference; low power; low voltage; reverse bandgap; supply supervisor;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2012.2191192
