Analog to {HEAD ~ digital converters} using multistage bandpass delta sigma modulators with {TAIL ~ arbitrary center frequency} 
Analog to { HEAD ~ digital converters } using multistage bandpass delta sigma modulators with { TAIL ~ arbitrary center frequency }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL