A Novel Delta Sigma Built-In-Current-Sensor as a Signal Strength Indicator for RF Transceiver Reconfiguration

Laurent Leyssenne (1) , Eric Kerhervé (1) , Yann Deval (1) , Didier Belot (2)

1 IMS - Laboratoire de l'intégration, du matériau au système
2 ST-CROLLES - STMicroelectronics [Crolles]

This paper explores a novel Built-in-Current Sensor (BICS) topology that handles both current detection and Delta-Sigma conversion to digital domain. This circuit is a compact solution that requires no extra block and operates transparently on the power supply. The proposed topology is flexible enough to address classic applications of failure testing (IDD-Quiescent) as well as accurate/fast control (IDD-transient) when needed. Its application in RF transceivers is considered.

Mots clés: Delta-Sigma modulation; WLAN; Built-in current sensor; RF power amplifier; efficiency maximization; WLAN.

Domaines: Electronique; Micro et nanotechnologies/Microélectronique

Laurent Leyssenne, Eric Kerhervé, Yann Deval, Didier Belot. A Novel Delta Sigma Built-In-Current-Sensor as a Signal Strength Indicator for RF Transceiver Reconfiguration. SBCCI 2009, Aug 2009, Natal, Brazil. pp 100-106. ⟨hal-00401282⟩