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One of the promising areas of research in microelectronics is the development of ultralow-power smart sensor LSIs that operate in the subthreshold region. To step toward these ultralow-power subthreshold CMOS-LSIs, we first need to develop a constant current reference circuit that can operate

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Abstract A compact PTAT current source is described that can operate on supply voltages down to 1.3 V does not need a compensation capacitor and achieves good supply rejection. The PTAT circuit is used to implement several bandgap-reference circuits. In addition, bandgap circuits based

Abstract-In this paper, temperature insensitive current reference circuit is proposed. The reference current value is determined by using the threshold voltage controlled circuit. The main difference from the previous work[1] is that the circuit can be fabricated by the standard CMOS process

Abstract—A 300µW bandgap reference circuit producing a 1.26V DC output with a 1.12 % variation over the design temperature range has been realized in a 0.25µm CMOS process. The circuit is designed for operation with a 2.5V supply, but is capable of 1.45V supply operation with less than 3

Errors that arise from tolerance variations and mismatches between devices severely degrade the performance of bandgap reference circuits, which are essential building blocks to all highperformance systems. All these error sources have been analyzed (and verified through SPICE) and their design

ABSTRACT The proposed CMOS current-voltage reference circuit consists of a traditional bandgap circuit based on the use of PMOS transistors in weak inversion. Its current is stabilized by an on-chip resistor with positive temperature coefficient. The voltage reference is produced by compensating

Abstract — 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

Abstract — This paper proposes a CMOS bandgap reference (BGR) circuit, which can successfully operate with sub-1-V sup-ply. In the conventional BGR circuit, the output voltage V ref is the sum of the built-in voltage of the diode V f and the thermal voltage