LT6554 650MHz Gain of 1 Triple Video Buffer UFEATURESDESCRIPTIO ■ 650MHz –3dB Small Signal Bandwidth The LT®6554 is a high-speed triple video buffer with an ■ 400MHz –3dB 2V internally fixed gain of 1. The individual buffers are opti- P-P Large Signal Bandwidth ■ 100MHz ± 0.1dB Bandwidth mized for performance with a 1k load and feature a ■ High Slew Rate: 2500V/ µ s 2VP–P full signal bandwidth of 400MHz, making them ideal ■ Fixed Gain of 1 Requires No External Resistors for driving very high-resolution video signals. Separate ■ 90dB Channel Separation at 10MHz power supply pins for each amplifier boost channel sepa- ■ 60dB Channel Separation at 100MHz ration to 90dB, allowing the LT6554 to excel in many high- ■ –82dBc 2nd Harmonic Distortion at 10MHz, 2V speed applications. P-P ■ –96dBc 3rd Harmonic Distortion at 10MHz, 2VP-P While the performance of the LT6554 is optimized for dual ■ Low Supply Current: 8mA per Amplifier supply operation, it can also be used on a single supply as ■ 6ns 0.1% Settling Time for 2V Step low as 4.5V. Using dual 5V supplies, each amplifier draws ■ TTL Compatible Enable: ISS ≤ 100µA When Disabled only 8mA. When disabled, the amplifiers draw less than ■ Differential Gain of 0.022%, Differential 100µA and the outputs become high impedance. Further- Phase of 0.006° more, the amplifiers are capable of turning on in less than ■ Wide Supply Range: ±2.25V (4.5V) to ±6V (12V) 50ns, making them suitable for multiplexing and portable ■ Available in 16-Lead SSOP Package U applications. APPLICATIO S The LT6554 is manufactured on Linear Technology’s proprietary low voltage complementary bipolar process ■ RGB Buffers and is available in the 16-lead SSOP package that fits in the ■ A/D Drivers same PCB area as an SO-8 package. ■ LCD Projectors , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. UTYPICAL APPLICATIOTriple Video Buffer and A/D Driver 5V 1 16 Large Signal Transient Response LT6554 2 15 1.5 VOUT = 2VP–P 3 V R + S = ±5V IN 14 1.0 RL = 1k – TA = 25°C 1k 480Ω 4 0.5 13 –5V 480Ω 0 – 12 5 OUTPUT (V) G + IN –0.5 1k 6 480Ω 11 5V –1.0 – 10 7 + B –1.5 IN 1k 0 2 4 6 8 10 12 14 16 18 20 8 9 TIME (ns) –5V –5V 6554 TA01b 6554 TA01a 6554fa 1
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