LT6555 650MHz Gain of 2 Triple 2:1Video Multiplexer DESCRIPTIO FEATURES 650MHz 3dB Small Signal Bandwidth The LT 6555 is a high speed triple 2:1 video multiplexer 450MHz 3dB 2V Large-Signal Bandwidth with an internally fixed gain of 2. The individual amplifiers P-P 120MHz 0.1dB Bandwidth are optimized for performance with a double terminated High Slew Rate: 2200V/s 75 video load and feature a 3dB 2V bandwidth of P-P Fixed Gain of 2 No External Resistors Required 450MHz, making them ideal for driving very high resolu- 72dB Channel Separation at 10MHz tion video signals. Separate power supply pins for each 50dB Channel Separation at 100MHz amplifier boost channel separation to 72dB, allowing the 80dBc 2nd Harmonic Distortion at 10MHz, 2V LT6555 to excel in many high speed applications. P-P 70dBc 3rd Harmonic Distortion at 10MHz, 2V P-P While the performance of the LT6555 is optimized for dual Low Supply Current: 9mA per Amplifier supply operation, it can also be operated with a single 6.5ns 0.1% Settling Time for 2V Step supply as low as 4.5V. Using dual 5V supplies, each I 500A per Amplifier when Disabled SS amplifier draws only 9mA. When disabled, the amplifiers Differential Gain of 0.033%, Differential draw less than 500A and the outputs become high Phase of 0.022 impedance. Wide Supply Range: 2.25V (4.5V) to 6V (12V) The LT6555 is manufactured on Linear Technologys Available in 24-Lead SSOP and 24-Lead QFN proprietary low voltage complementary bipolar process Packages U and is available in 24-lead SSOP and ultra-compact APPLICATIO S 24-lead QFN packages. , LTC and LT are registered trademarks of Linear Technology Corporation. RGB Amplifiers All other trademarks are the property of their respective owners. UXGA Video Multiplexing LCD Projectors TYPICAL APPLICATIO RGB Multiplexer and Line Driver + V R LT6555 INA G INA 75 B INA 75 Video Amplitude Transient Response 2 R OUT 1.8 75 75 1.6 1.4 1.2 AGND 75 75 1.0 2 G OUT 0.8 75 R 0.6 INB G INB 0.4 B INB 75 0.2 V = 0V TO 700mV IN 0 V = 5V S 75 R = 150 L 0.2 2 B 75 OUT T = 25C A 75 0.4 0214 6 12 14 168 20 8 10 SELECT A/B TIME (ns) 75 ENABLE 6555 G21 DGND 6555 TA01a V 6555f 1 OUTPUT (V) U ULT6555 ABSOLUTE AXI U RATI GS (Note 1) + Total Supply Voltage (V to V ) ............................ 12.6V Junction Temperature Input Current (Note 2) ........................................ 10mA SSOP ................................................................ 150C Output Current (Continuous) ............................. 70mA QFN .................................................................. 125C EN to DGND Voltage (Note 2) ................................. 5.5V Storage Temperature Range SEL to DGND Voltage (Note 2) .................................. 8V SSOP ................................................. 65C to 150C Output Short-Circuit Duration (Note 3) ............ Indefinite QFN ................................................... 65C to 125C Operating Temperature Range (Note 4) ... 40C to 85C Lead Temperature (Soldering, 10 sec) Specified Temperature Range (Note 5) .... 40C to 85C SSOP ................................................................ 300C UUW PACKAGE/ORDER I FOR ATIO TOP VIEW ORDER PART TOP VIEW ORDER PART + NUMBER NUMBER 1 V IN1A 24 2 EN DGND 23 24 23 22 21 20 19 LT6555CGN LT6555CUF 3 SEL A/B IN2A 22 + V 1 18 V REF LT6555IGN LT6555IUF + 4 V V 21 REF IN3A 2 17 OUT1 G = +2 5 OUT1 IN3A 20 AGND1 V 3 16 25 6 V AGND1 19 V 4 15 OUT2 G = +2 + 7 OUT2 IN1B 18 IN1B 5 14 V + 8 V AGND2 17 AGND2 6 13 OUT3 UF PART* 9 G = +2 OUT3 IN2B 16 7 8 9 10 11 12 MARKING 10 V AGND3 15 + 11 V 6555 IN3B 14 + 12 V V 13 UF PACKAGE 24-LEAD (4mm 4mm) PLASTIC QFN GN PACKAGE T = 125C, = 37C/W, = 2.6C/W JMAX JA JC 24-LEAD PLASTIC SSOP EXPOSED PAD (PIN 25) IS V MUST BE SOLDERED TO PCB T = 150C, = 90C/W JMAX JA Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25C. V = 5V, R = 150, C = 1.5pF, V = 0.4V, V , V , V = 0V. A S L L EN AGND DGND VREF SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Referred Offset Voltage V = 0V, V = V /2 5 16 mV OS IN OS OUT 24 mV I Input Current 17 45 A IN R Input Resistance V = 1V 100 400 k IN IN C Input Capacitance f = 100kHz 1 pF IN PSRR Power Supply Rejection Ratio V = 2.25V to 6V (Note 6) 56 62 dB S I Input Current Power Supply Rejection V = 2.25V to 6V (Note 6) 1 4 A/V PSRR S A ERR Gain Error V = 2V, Nominal Gain 2V/V 2.5 % V OUT A MATCH Gain Matching Any One Channel to Another 0.33 % V V Output Voltage Swing (Note 7) 3.15 3.4 V OUT 3.0 V 6555f 2 IN2B IN2A AGND3 DGND IN3B IN1A + + V V + V EN V SEL A/B U WWW