Details

Autor(en) / Beteiligte

• De La Cruz-Blas, Carlos A.
• López-Martín, Antonio
• Carlosena, Alfonso
• Sarmiento, Arturo

Titel

Multiple operating points in a square-root domain first-order filter

Ist Teil von

• International journal of circuit theory and applications, 2007-01, Vol.35 (1), p.71-91

Ort / Verlag

Chichester, UK: John Wiley & Sons, Ltd

Erscheinungsjahr

2007

Quelle

Wiley-Blackwell Full Collection

Beschreibungen/Notizen

• In this paper novel corrective circuits to avoid multiple operating points in a square‐root domain first‐order filter are proposed. By employing a DC test it is demonstrated that the filter possesses three operating points (two stable and one unstable) and the corrective circuits enforce the proper operating mode. The corrective circuits and filter are able to operate with very low supply voltages (as low as VGS+2VDSsat). Moreover, a detailed analysis concerning the impact that produces the corrective circuits on the filter performance is discussed. Both measurement and simulation results are provided to validate the circuits and analysis employed. Copyright © 2006 John Wiley & Sons, Ltd.