Analog circuit design: low-noise, low-power, low-voltage; mixed-mode design with CAD tools; voltage, current and time references
Analysis and Design of Analog Integrated Circuits
Analysis and Design of Analog Integrated Circuits
Operational Amplifier Speed and Accuracy Improvement: Analog Circuit Design With Structural Methodology (KLUWER INTERNATIONAL SERIES IN ENGINEERING AND COMPUTER SCIENCE)
A 1.2-V Piecewise Curvature-Corrected Bandgap Reference in 0.5 $mu$m CMOS Process
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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This paper presents the design of a low-drift, curvature-corrected bandgap voltage reference (BGR) realized in a 0.35@mm 3.3V triple-well CMOS technology having vertical NPN BJT transistors. The proposed circuit takes advantage of a block bulk isolation strategy improving the substrate noise sensitivity at the BGR output more than 100dB up to 100MHz. The simulated circuit achieves a mean temperature coefficient of 6.2ppm/^oC over the temperature range of -40 to 125^oC with 4.1ppm/^oC standard deviation without any trimming. The circuit operates down to 2V and consumes 31.5@mA from a single 3.3V supply. Its line regulation is less than 0.07% per Volt while its supply voltage changes from 2V to 3.6V. The power supply rejection (PSR) of the circuit is -76.5dB at 100Hz. The peak-to-peak output noise is 4.66@mV integrated within the frequency range of 0.1-10Hz. The proposed circuit occupies an area of (515@mmx320@mm) 0.165mm^2.