ScholarLens Back to search
2009•Journal of Hefei University of TechnologyRequires access

A simple bandgap voltage reference with high PSRR

Zhiqiang Tang

Open publisher page 0 citations

Abstract

In this paper,a bandgap voltage reference with high PSRR and low noise is proposed.The circuit is designed using the 0.6 μm N well CMOS process.Based on the conventional bandgap reference circuit,a simple voltage subtractor circuit is incorporated.The subtractor feeds the supply noise directly into the feedback loop of the bandgap circuit which can help to suppress supply noise and improve the PSRR.The Cadence Spectre simulation result shows that the proposed bandgap voltage reference has a temperature coefficient of 26×10-6/℃ between-25 ℃ and 85 ℃ and the RMS noise of 43 μV from 10 Hz to 100 kHz,and its PSRR gets to 110 dB at the low frequencies.

About this research paper

What this paper is about

In this paper,a bandgap voltage reference with high PSRR and low noise is proposed.The circuit is designed using the 0.6 μm N well CMOS process.Based on the conventional bandgap reference circuit,a simple voltage subtractor circuit is incorporated.The subtractor feeds the supply noise directly into the feedback loop of the bandgap circuit which can help to suppress supply noise and improve the PSRR.The Cadence Spectre simulation result shows that the proposed bandgap voltage reference has a temperature coefficient of 26×10-6/℃ between-25 ℃ and 85 ℃ and the RMS noise of 43 μV from 10 Hz to 100 kHz,and its PSRR gets to 110 dB at the low frequencies.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

In this paper,a bandgap voltage reference with high PSRR and low noise is proposed.The circuit is designed using the 0.6 μm N well CMOS process.Based on the conventional bandgap reference circuit,a simple voltage subtractor circuit is incorporated.The subtractor feeds the supply noise directly into the feedback loop of the bandgap circuit which can help to suppress supply noise and improve the PSRR.The Cadence Spectre simulation result shows that the proposed bandgap voltage reference has a temperature coefficient of 26×10-6/℃ between-25 ℃ and 85 ℃ and the RMS noise of 43 μV from 10 Hz to 100 kHz,and its PSRR gets to 110 dB at the low frequencies.

Key concepts: Power supply rejection ratio, Bandgap voltage reference, Voltage reference, Voltage, Electrical engineering, Noise (video), Materials science, Temperature coefficient

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
A simple bandgap voltage reference with high PSRR — Research Paper | ScholarLens