Background Offset and Gain Calibration for Time-Interleaved ADC Using Digital Sinusoidal Calibration Signal

Raouf Khalil (1) , Marie-Minerve Louërat (1) , Roger Petigny (2) , Hugo Gicquel (2)

1 CIAN - Circuits Intégrés Numériques et Analogiques
2 ST-GRENOBLE - STMicroelectronics [Grenoble]

This paper presents background offset and gain calibration for time-interleaved analog-to-digital converter (TIADC). The calibration technique depends on detecting the offset and the amplitude of a calibration signal. The detection is based on a simple algorithm performed in the digital part. A digital sinusoidal wave is needed to implement the calibration technique. The calibration technique behaviors are theoretically analysed and verified by simulations. A 12-bit, 4-channel, 800 MS/s TIADC is used as an example.

Domaines: Informatique [cs]

Raouf Khalil, Marie-Minerve Louërat, Roger Petigny, Hugo Gicquel. Background Offset and Gain Calibration for Time-Interleaved ADC Using Digital Sinusoidal Calibration Signal. The International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD) 2012, Sep 2012, Seville, Spain. pp.273-276, ⟨10.1109/SMACD.2012.6339392⟩. ⟨hal-01282407⟩