A 1 V 103 dB 3rd-Order Audio Continuous-Time ΔΣ ADC With Enhanced Noise Shaping in 65 nm CMOS.

As technology scales, integrating high resolution ADCs into high fidelity mixed signal systems becomes challenging in advanced CMOS processes. Cascading integrators to achieve high-order filter structures limits the modulation index and compromises on stability at the expense of added hardware and power consumption. To optimize the maximum stable amplitude (MSA) to accommodate a larger input dynam...