A High-Order Curvature-Compensated Bandgap Voltage Reference for Micro-Gyroscope

Qiang Li; Xiao Yun Tan; Guan Shi Wang

doi:10.4028/www.scientific.net/KEM.503.12

Paper Titles

Preface

The Out-Rotator of Spin Traveling Wave Pump on Magnetic Fluid
p.3

A Monolithic Integrated Pressure Sensor
p.8

A High-Order Curvature-Compensated Bandgap Voltage Reference for Micro-Gyroscope
p.12

Pull-In Voltage of Parallel-Plate Capacitor Fixed to Double Elastic Supports
p.18

Research on Two-Dimensional Scanning Characteristics of MEMS Resonant Mirror
p.24

Design and Fabrication of a MEMS Flexural Plate Wave Device Based on LTO/ZnO/LTO/Si₃N₄ Multilayered Composite Membrane
p.29

New Isolation Optimization Method of RF MEMS Capacitive Switches
p.35

Design, Fabrication and Characterization of a 5x5 Array of Piezoresistive Stress and Temperature Sensors
p.43

HomeKey Engineering MaterialsKey Engineering Materials Vol. 503A High-Order Curvature-Compensated Bandgap Voltage...

A High-Order Curvature-Compensated Bandgap Voltage Reference for Micro-Gyroscope

Abstract:

The reference is an important part of the micro-gyroscope system. The precision and stability of the reference directly affect the precision of the micro-gyroscope. Unlike the traditional bandgap reference circuit, a circuit using a temperature-dependent resistor ratio generated by a highly-resistive poly resistor and a diffusion resistor in CMOS technology is proposed in this paper. The complexity of the circuit is greatly reduced. Implemented with the standard 0.5μm CMOS technology and 9V power supply voltage, in the range of -40~120°C, the temperature coefficient of the proposed bandgap voltage reference can achieve to about 1.6 ppm/°C. The PSRR of the circuit is -107dB.

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Periodical:

Key Engineering Materials (Volume 503)

Pages:

12-17

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.503.12

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Online since:

February 2012

Authors:

Qiang Li, Xiao Yun Tan, Guan Shi Wang

Keywords:

Bandgap Reference, High Order Curvature Compensation, Micro-Gyroscope

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References

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