Author(s)

Zhen Zhang ¹, Chao Geng ¹, Bowen Sun ¹

Affiliation(s)

¹ Chip Design Department, Academy of Shenzhen State Micro Electronics Co., Ltd., Shenzhen, 518057, Guangdong, China

Corresponding Author

Zhen Zhang

ABSTRACT

A Stable High-Order Compensated Voltage Reference Without Operational Amplifier Architecture is proposed in this paper, which replaces the conventional clamp method in traditional designs. And the high-order compensation enables the low-temperature drift. Specifically, the current proportional to absolute temperature circuit generates a first-order voltage proportional to absolute temperature, which is used to compensate for the first-order characteristics of the transistor, thereby producing a second-order reference voltage. By integrating higher-order, it compensates for both the second-order and higher-order terms, achieving a low-temperature drift voltage reference. The proposed circuit is simulated based on 350 nm process, which features temperature coefficient of 7.074ppm/℃, PSRR of -78.34dB, phase margin of 81.64°, and line regulation of 1.232mV/V across the temperature range of -55℃ to 125℃ with supply voltage of 2.97V~5.55V.

KEYWORDS

High-Order Compensation, Voltage Reference, VBG_GEN Circuit

CITE THIS PAPER

Zhen Zhang, Chao Geng, Bowen Sun, A Stable High-Order Compensated Voltage Reference without Operational Amplifier Architecture. Journal of Electronics and Information Science (2025) Vol. 10: 106-113. DOI: http://dx.doi.org/10.23977/10.23977/jeis.2025.100213.

REFERENCES

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