| 摘要 |
A low power white noise source is fabricated on an integrated circuit. The noise source includes a bipolar junction transistor (QBJT) having an emitter terminal coupled to a common circuit potential, a collector terminal coupled to a source of current (CS), and a base terminal coupled through a resistance (RB) to a bias signal (Vbias). The resistance has a resistance value selected to enhance a noise signal generated by the transistor in a collector current thereof. The noise source further includes a transresistance amplifier (AMP) having an input coupled to the collector terminal for converting the noise signal to a voltage signal (NOISE OUT) having white noise characteristics.
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