ISL59837

• Triple single-supply bufferTriple single supply buffer
• Generates negative rail from from single +3.3V supplyFrom the single +3.3 V supply generated from the negative supply
• No output DC blocking capacitor neededNo output DC blocking capacitors are required
• 200MHz -3dB bandwidth200MHz - 3dB bandwidth
• 50MHz 0.1dB bandwidth0.1dB bandwidth at 50MHz
• Fixed gain of 2 output bufferAn output buffer with a fixed gain of 2
• Charge pump power down function (0.1mA typical)Power-down charge pump power (0.1 mA typical)
• Outputs are high impedance in power-down modeThe output is high impedance in power-down mode
• Amplifier enable/disable function controlAmplifier enable/disable function control
• Pb-free plus anneal available (RoHS compliant)Lead-free plus annealed (RoHS compliant)

The ISL59837 is a revolutionary device that allows true singlesupply operation of video amplifiers.The ISL59837 is a revolutionary device that enables true single-supply amplifier video operation. Designed for systems requiring output swing below ground but lacking a negative power supply, the ISL59837 generates the required negative rail internally from a +3.3V power supply.For designs that require output swing but lack an underground negative power supply, the ISL59837 generates the required negative supply with an internal +3.3 V supply. This allows for DC-accurate coupling of video onto a 75Ω double-terminated line.This allows DC-coupled video to be accurate to a 75Ω two-line termination. The buffers have an integrated 6dB, eliminating the need for external gain-setting resistors.The buffer has an integrated 6dB, eliminating the need for an external gain-setting resistor. An external reference voltage can be applied to the REF pin to shift the analog video level down by the desired amount.An external reference voltage can be applied to the REF pin to shift the required number of analog video levels down. The charge pump and amplifiers can be placed in a power down mode, consuming less than 1mA of current.The charge pump and amplifier can be placed in power-down mode and consume less than 1mA.