Abstract: Differential gain and phase (DG and DP) are common video specifications. What are they? Why are they used if they cannot be seen? This application note answers these questions, and explains how these specifications are applied to other nonvideo amplifiers, ADCs, and DACs. Maxim > Design support > App notes > Amplifier and Comparator Circuits > APP 4294 Maxim > Design support > App notes > Automatic Test Equipment (ATE) > APP 4294 Maxim > Design support > App notes > Automotive > APP 4294 Keywords: DG, DP, differential gain phase, video error, NTSC, TV, invisible amplifier, PAL, subcarrier, ADC, DAC, sweet-spot, linear, linearity, Sallen-Key, filter, video, quality, signal integrity May 23, 2011 APPLICATION NOTE 4294 Differential Gain and Phase―Why Measure It, if You Cannot See It? By: Bill Laumeister, Strategic Applications Engineer Abstract: Differential gain and phase (DG and DP) are common video specifications. What are they? Why ……