IIIE 20352
INSTITUTO DE INVESTIGACIONES EN INGENIERIA ELECTRICA "ALFREDO DESAGES"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Characterization and Compensation of Nonlinearities in a Continuous-time First-order Sigma-delta ADC
Autor/es:
CHRISTIAN SCHMIDT; JUAN EDMUNDO COUSSEAU; JOSE LUIS FIGUEROA; RISTRO WICHMAN; STEFAN WERNER
Lugar:
Aveiro
Reunión:
Conferencia; IEEE international Workshop Series on RF front-ends for software defined and cognitive radio solutions (IEEE IMWS2010); 2010
Institución organizadora:
IEEE
Resumen:
We present an approach for compensating nonlinearities in a continuous-time (CT) first-order sigma-delta converter (SDC) with one bit quantization. A reduction of an order of magnitude is obtained in the measured squared error when compared to the uncompensated SDC. Our results confirm a significant improvement in Signal to Noise and Distortion Ratio (SINAD) for single tone input signals and in Spurius Free Dynamic Range (SFDR) for multi-tone inputs.
