LT6554 650MHz Gain of 1 Triple Video Buffer FEATURES DESCRIPTIO 650MHz 3dB Small Signal Bandwidth The LT 6554 is a high-speed triple video buffer with an 400MHz 3dB 2V Large Signal Bandwidth internally fixed gain of 1. The individual buffers are opti- P-P 100MHz 0.1dB Bandwidth mized for performance with a 1k load and feature a High Slew Rate: 2500V/s 2V full signal bandwidth of 400MHz, making them ideal PP 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, 2V P-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: I 100A When Disabled SS only 8mA. When disabled, the amplifiers draw less than Differential Gain of 0.022%, Differential 100A 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 applications. U APPLICATIO S The LT6554 is manufactured on Linear Technologys 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. TYPICAL APPLICATIO Triple Video Buffer and A/D Driver 5V 1 16 Large Signal Transient Response LT6554 2 15 1.5 V = 2V OUT PP 3 V = 5V S + R IN 14 R = 1k 1.0 L T = 25C A 1k 480 0.5 4 13 5V 480 0 12 5 + G IN 0.5 1k 480 6 11 5V 1.0 10 7 1.5 + B IN 0 2 4 6 8 10 12 14 16 18 20 1k TIME (ns) 8 9 5V 5V 6554 TA01b 6554 TA01a 6554fa 1 OUTPUT (V) U ULT6554 UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ORDER PART + TOP VIEW Total Supply Voltage (V to V ) ............................ 13.2V NUMBER + EN 1 16 V Input Current (Note 2) ........................................ 10mA + DGND 2 15 V Output Current (Continuous) ............................. 70mA LT6554CGN INR 3 G = +1 14 OUTR EN to DGND Voltage (Note 2) ................................. 5.5V LT6554IGN AGND 4 13 V Output Short-Circuit Duration (Note 3) ............ Indefinite G = +1 ING 5 12 OUTG Operating Temperature Range (Note 4) ... 40C to 85C + AGND 6 11 V GN PART Specified Temperature Range (Note 5) .... 40C to 85C G = +1 INB 7 10 OUTB MARKING Storage Temperature Range .................. 65C to 150C V 8 9 V Junction Temperature........................................... 150C 6554 GN PACKAGE Lead Temperature (Soldering, 10 sec).................. 300C 6554I 16-LEAD PLASTIC SSOP T = 150C, = 135C/W JMAX JA Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25C. V = 5V, R = 1k, C = 1.5pF, V = 0.4V, V , V = 0V. A S L L EN AGND DGND SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Offset Voltage V = 0V, V = V 11 35 mV OS IN OS OUT 70 mV I Input Current 17 50 A IN e Output Noise Voltage f = 100kHz 20 nVHz n i Input Noise Current f = 100kHz 3.5 pAHz n R Input Resistance V = 1V 150 400 k IN IN C Input Capacitance f = 100kHz 1 pF IN PSRR Power Supply Rejection Ratio V (Total) = 4.5V to 12V (Note 6) 51 65 dB S I Input Current Power Supply V (Total) = 4.5V to 12V (Note 6) 1 5 A/V PSRR S Rejection A ERR Gain Error V = 2V 2.5 0.6 0 % V OUT A MATCH Gain Matching Any One Channel to Another 0.03 % V V Maximum Output Voltage Swing 3.75 3.85 V OUT I Supply Current, Per Amplifier R = 810 mA S L R = 13 mA L Supply Current, Disabled, Total V = 4V 22 100 A EN V = Open 0.5 100 A EN I Enable Pin Current V = 0.4V 200 95 A EN EN + V = V 0.5 50 A EN I Output Short-Circuit Current R = 0 , V = 2V 50 105 mA SC L IN SR Slew Rate 4V Output Step (Note 9) 1700 2500 V/s P-P 3dB BW Small Signal 3dB Bandwidth V = 200mV 650 MHz OUT P-P 0.1dB BW Gain Flatness 0.1dB Bandwidth V = 200mV 100 MHz OUT P-P 6554fa 2 U WWW