Title :
Robust M-1 channel ΠΔΣ ADC
Author :
Kong, Shyang Kye ; Ku, Walter H.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
It has been shown that chopper stabilized ΠΔΣ ADC with adaptive channel gain equalization and some time oversampling can be made robust against DC offset errors, channel gain mismatches and the Hadamard modulation level errors at the front-end. Furthermore, we show that one of the channels can be removed in this architecture which results in a M-1 channel ΠΔΣ ADC that achieves the same performance with less hardware complexities
Keywords :
adaptive equalisers; error compensation; sigma-delta modulation; signal sampling; stability; DC offset errors; Hadamard modulation level errors; M-1 channel; adaptive channel gain equalization; channel gain mismatches; chopper stabilized ADC; front-end; time oversampling; Adaptive equalizers; Adaptive filters; Choppers; Demodulation; Dynamic range; Frequency; Low pass filters; Performance gain; Quantization; Robustness;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1997. IMTC/97. Proceedings. Sensing, Processing, Networking., IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-3747-6
DOI :
10.1109/IMTC.1997.610313
