Title :
Wideband distortion compensation for bipolar flash analog-to-digital converters
Author :
Deyst, John P. ; Vytal, John J. ; Blasche, Paul R. ; Siebert, William M.
Author_Institution :
NASA Langley Res. Center, Hampton, VA, USA
Abstract :
Phase analog compensation (PPC) was applied to a bipolar flash analog-to-digital converter (ADC). PPC parameters were set by analyses of flash ADC error sources and of PPC operation. It is shown that phase plane compensation effectively compensates the nonlinear error sources of the tested ADC, lowering the estimated distortion floor by 11 dB for a full-scale ADC input range (2 V) and wide (40 MHz) bandwidth. The results indicate that the factor limiting better compensation was probably incorrect calibration input estimation
Keywords :
analogue-digital conversion; calibration; compensation; electronic equipment testing; measurement errors; bipolar flash analog-to-digital converters; calibration; flash ADC error sources; lookup table; nonlinear error sources; phase plane compensation; wideband distortion compensation; Analog-digital conversion; Bandwidth; Calibration; Distortion; Dynamic range; History; Iron; Spectral analysis; Table lookup; Wideband;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1992. IMTC '92., 9th IEEE
Conference_Location :
Metropolitan, NY
Print_ISBN :
0-7803-0640-6
DOI :
10.1109/IMTC.1992.245131
