학술논문

An 80MHz 4/spl times/ oversampled cascaded /spl Delta//spl Sigma/-pipelined ADC with 75dB DR and 87dB SFDR
Document Type
Conference
Source
ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, 2005. Solid-State Circuits Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International. :174-591 Vol. 1 2005
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Bandwidth
Finite impulse response filter
Quantization
Transfer functions
Noise shaping
Pipelines
Noise cancellation
Dynamic range
Modems
Frequency
Language
ISSN
0193-6530
2376-8606
Abstract
A 2/sup nd/-order 4b /spl Delta//spl Sigma/ modulator in cascade with a 9b pipeline clocked at 80MHz achieves 75dB DR, 74dB peak SNR and more than 87dB SFDR in a 10MHz bandwidth by means of background digital linearization and noise-cancellation algorithms. The 0.18/spl mu/m CMOS chip consumes 240mW including reference generator, digital decimator and correction logic.