The design of low-noise bandgap references

Author

Van Staveren, Arie ; Verhoeven, Chris J M ; van Roermund, Arthur H. M.

Author_Institution

Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands

Volume

43

Issue

4

fYear

1996

fDate

4/1/1996 12:00:00 AM

Firstpage

290

Lastpage

300

Abstract

The noise power of bandgap references is directly related to the current consumption of the bandgap reference. This paper describes the design of low-noise bandgap references. It is shown that for an idealized bandgap reference, a fundamental noise limit exists when the limited current consumption is a constraint. A design example is given of a 1 V bipolar bandgap reference with a current consumption of 5 μA. The output voltage is 200 mV and the mean temperature dependency is ≈20 ppm/K for 0°C to 100°C. The output noise density equals 166 nV/√Hz

Keywords

bipolar transistor circuits; circuit noise; energy gap; reference circuits; 0 to 100 C; 1 V; 200 mV; 5 muA; bipolar bandgap reference; current consumption; design; low-noise bandgap reference; noise power; output voltage; temperature dependency; Circuit noise; DC generators; Energy consumption; Impedance; Noise generators; Photonic band gap; Stochastic processes; Temperature dependence; Temperature distribution; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.488808

Filename

488808