An Incremental-Charge-Based Digital Transmitter With Built-in Filtering

A fully integrated transmitter architecture operating in the charge-domain with incremental signaling is presented. The architecture provides improved out-of-band noise performance, thanks to an intrinsic low-pass noise filtering capability, reduced quantization noise scaled by capacitance ratios, and sinc 2 alias attenuation due to a quasi-linear reconstruction interpolation. With a respective un...