Title :
Active substrate noise suppression in mixed-signal circuits using on-chip driven guard rings
Author :
Winkler, Wolfgang ; Herzel, Frank
Author_Institution :
Inst. for Semicond. Phys., Frankfurt, Germany
Abstract :
This paper presents an active substrate noise suppression circuit using a pair of concentric guard rings. The outer guard ring senses the substrate noise, which is inverted and amplified by a SiGe circuit. This on-chip amplifier drives the inner guard ring such that efficient noise cancellation is achieved. A ring oscillator is used to sense the residual substrate noise. The measured noise suppression bandwidth is as high as 400 MHz
Keywords :
integrated circuit noise; interference suppression; mixed analogue-digital integrated circuits; 400 MHz; SiGe; SiGe circuit; active substrate noise suppression; concentric guard rings; driven inner guard ring; efficient noise cancellation; mixed-signal circuits; noise suppression circuit; onchip amplifier; onchip driven guard rings; ring oscillator; substrate noise sensing; Active noise reduction; Bonding; Circuit noise; Circuit simulation; Coupling circuits; Frequency; Noise cancellation; Ring oscillators; Semiconductor device noise; Substrates;
Conference_Titel :
Custom Integrated Circuits Conference, 2000. CICC. Proceedings of the IEEE 2000
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5809-0
DOI :
10.1109/CICC.2000.852684
