approved: Gábor C. Temes Delta-Sigma () analog-to-digital converters (ADCs) are widely used in wireless transceivers. Recently, continuous-time (CT) ADCs gain growing interest in wireless applications for their lower power consumption and wider input bandwidth as compared with the discrete-time (DT) counterparts. In this thesis, a wideband low-power CT… (More)
A 0.8V 3rd-order ∆Σ DAC with headphone driver is presented. The circuit requires only one opamp per channel, shared by the internal DAC, the FIR and 2nd-order Sallen-Key low-pass filter, as well as by the headphone driver. The prototype IC implemented in a 0.35µm CMOS process achieved 88dB dynamic range (DR), while consuming 2.6mW from a 0.8V supply.