A 40mW pseudo-differential 200MHz analog video pre-processing for HDTV flat-panel displays

A 40 mW 0.059 mm² analog video pre-processing is presented. Pseudo differential inputs and an AGC with two gain characteristics are implemented. These gain characteristics are realized by simply adding one resistor to the existing topology. Two single ended low noise input buffers are used in unity gain configuration to operate the AGC. The ADC is driven by a binary weighted 4^th order Bessel filter which is optimized for power and area. It is fabricated in a 90 nm 1.2 V CMOS process and achieves 51 dB SNDR for a 60 MHz input and a filter corner frequency of 78 MHz.