Emerging wireless standards demand ADCs with hundred megahertz (MHz) bandwidth (BW) with an inband dynamic range (DR) better than 60textdB. Continuous-time sigma-delta modulators can accommodate a high DR under low OSR for a wideband target [1]. Nevertheless, power-hungry integrators limit the energy efficiency of CTSDMs with a best reported sim 166textdB Schreier textFoM(textFoMs), while suffering from the STF peaking issue. Noise-shaping SAR (NS-SAR) ADCs are free from the aforementioned constraints, and well-suited to multi-standard wireless communication systems with an energy-efficient, fully passive integrator and an easily configurable architecture. Furthermore by timeInterleaving the NS-SAR (TINS-SAR), the BW boosts to 80textMHz with sim 66textdB SNDR, maintaining an outstanding efficiency of 171.2 textFoMs [2]. However, the NS order and efficiency are difficult to enhance due to the lack of active summation nodes, limiting the achievable SNR and DR. Moreover, the necessitated coarse-fine quantization and midway feedback scheme [3] textprevent a high interleaving factor in the TINS -SAR ADC, thus holding back the BW from a further push. Rather than TI, hybridizing the pipeline with NS-SAR (NS-PiSAR) also can extend the BW while simultaneously enabling a high NSefficiency [4]. Previous arts demonstrate a 1 textst -order NS-PiSAR ADC with a40textMHz BW and sim 75textdB SNDR, but requiring a background-calibrated residue amplifier (RA). When pursuing hundred MHz BW, the impairments from the RA are a bottleneck. This work presents a single-channel NS-PiSAR ADC with effective 4 textth -order NS, achieving a peak SNDR of 70. 15textdB over 100textMHz BW. With a one-time-only trimming, the ADC is robust under VT variations.