A 375-mW quadrature bandpass ΔΣ ADC with 8.5-MHz BW and 90-dB DR at 44 MHz

A quadrature bandpass ΔΣ ADC for a multistandard TV tuner achieves a total dynamic range of 90 dB over an 8.5-MHz passband centered on 44 MHz while consuming 375 mW. The fourth-order continuous-time ADC uses active-RC resonators configured in a modified feedforward architecture.

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