GB4571 Video Buffer with Precision Strobed DC Restore DATA SHEET FEATURES • accurate clamping to within ± 1 mV • less than 1 mV clamping distortion • variable clamping range (VEE + 3.
0 V to VCC - 4.
5 V) • ultra low differential gain and differential phase • fast recovery from sudden changes in DC offsets • less than ± 0.
15° phase delay variation at 3.
58 MHz • ± 0.
1 dB flatness to 80 MHz • ± 4.
5 V to ±13.
2 V supply voltage range DESCRIPTION The GB4571 is a high performance video buffer with DC restore used primarily for accurate back porch clamping.
Key features include operation from ± 4.
5 V to ± 13.
2 V supply voltages, fast recovery from sudden changes in DC offset, ± 0.
1 dB flatness to 8...

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