The AD9260 (Figure 3) achieves both high dynamic range and very wide input signal bandwidth at a modest 8X oversampling ratio by combining sigma-delta techniques with a high-speed pipelined A/D converter. The differential analog input is fed into a 2nd-order sigma-delta modulator employing a 5-bit flash quantizer and 5-bit feedback. At the same time, a 12-bit pipelined A/D converter quantizes the input to the flash converter with greater accuracy.