List of symbols and abbreviations 1 Introduction 1.1 Background 1.2 Scope 1.3 Outline 2 The signal conditioning channel 2.1 Generic communication channel 2.2 Performance parameters 2.3 Conventionalconditioningchannels 2.4 Evolution 2.5 Nomenclature 2.6 Conclusions 3 ∑△A/D conversion 3.1 Historical overview 3.2 State-of-the-art in ∑△A/D conversion 3.3 ∑△A/DCs in future conditioning channels 3.4 Limitations of ∑△ A/D conversion 3.5 Conclusions 4 Power consumption in channel building blocks 4.1 Literatureonpower/performanceanalysis 4.2 Figures-of-merit 4.3 Power consumption in analog conditioning circuits 4.4 Power consumption in a ∑△ ADC 4.5 Power consumption in digital conditioning circuits 4.6 Comparison 4.7 Conclusions 5 Full-analog and full-digital conditioning channels 5.1 Full-analog conditioning channel 5.2 Full-digital conditioning channel 5.3 Conclusions 6 Conditioning ∑△ ADCs 6.1 Generic conditioning ∑△ ADC 6.2 Signal conditioning in the decimation filter 6.3 Signal conditioning with a restricted filtering STF 6.4 Signal conditioning by unrestricted STF design 6.5 Comparison of conditioning ADCs 6.6 Conclusions 7 Digitization of the inter-die interface 8 Highly analog and highly digital channels for FM_/AM radio 9 Conditioning ∑△ ADCs for Bluetooth 10 General conclusions A Overview of published ∑△ ADCs B Power/performance relation of analog circuits C Power/performance relation of digital filters D Third-orderdistortion in analog circuits and ∑△ ADCs E Power consumption in a data interface References