Datasheet LT6556 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 750MHz Gain of 1 Triple 2:1Video Multiplexer |
| Pages / Page | 16 / 1 — FEATURES. DESCRIPTIO. 750MHz –3dB Small Signal Bandwidth. 450MHz –3dB 2V. … |
| File Format / Size | PDF / 259 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. 750MHz –3dB Small Signal Bandwidth. 450MHz –3dB 2V. P-P Large-Signal Bandwidth. 120MHz ±0.1dB Bandwidth
Model Line for this Datasheet
Text Version of Document
LT6556 750MHz Gain of 1 Triple 2:1Video Multiplexer
U FEATURES DESCRIPTIO
■
750MHz –3dB Small Signal Bandwidth
The LT®6556 is a high speed triple 2:1 video multiplexer ■
450MHz –3dB 2V
with an internally fi xed gain of 1. The individual buffers
P-P Large-Signal Bandwidth
■
120MHz ±0.1dB Bandwidth
are optimized for performance with a 1k load and feature a ■
High Slew Rate: 2100V/µs
2VP-P –3dB bandwidth of 450MHz, making them ideal for ■
Fixed Gain of 1; No External Resistors Required
driving very high resolution video signals. Separate power ■ 72dB Channel Separation at 10MHz supply pins for each amplifi er boost channel separation ■ 52dB Channel Separation at 100MHz to 72dB, allowing the LT6556 to excel in many high speed ■ –84dBc 2nd Harmonic Distortion at 10MHz, 2V applications. P-P ■ –87dBc 3rd Harmonic Distortion at 10MHz, 2VP-P While the performance of the LT6556 is optimized for dual ■ Low Supply Current: 9.5mA per Amplifi er supply operation, it can also be operated with a single sup- ■ 6.5ns 0.1% Settling Time for 2V Step ply as low as 4.5V. Using dual 5V supplies, each amplifi er ■ ISS ≤ 330µA per Amplifi er When Disabled draws only 9.5mA. When disabled, the amplifi ers draw ■ Differential Gain of 0.033%, Differential Phase of 0.022° less than 330µA and the outputs become high impedance. ■ Wide Supply Range: ±2.25V (4.5V) to ±6V (12V) For applications requiring a fi xed gain of 2, refer to the ■ Available in 24-Lead SSOP and 24-Lead QFN Packages LT6555 datasheet.
U
The LT6556 is available in 24-lead SSOP and ultra-compact
APPLICATIO S
24-lead QFN packages. ■ RGB Buffers , LTC and LT are registered trademarks of Linear Technology Corporation. ■ UXGA Video Multiplexing All other trademarks are the property of their respective owners. ■ LCD Projectors
U TYPICAL APPLICATIO RGB Multiplexer and Line Driver Large-Signal Transient Response
V+ RINA LT6556 GINA 75Ω 1.5 BINA VIN = 2VP-P ×1 ROUT VS = ±5V 1.0 1k RL = 1k 75 T Ω A = 25°C 0.5 75Ω AGND 0 ×1 G OUTPUT (V) OUT –0.5 1k RINB GINB –1.0 BINB 75Ω –1.5 0 2 4 6 8 10 12 14 16 18 20 TIME (ns) 75Ω ×1 BOUT 1k SELECT A/B 6556 TA02 VREF 75Ω ENABLE DGND V– 6556 TA01 6556f 1
U FEATURES DESCRIPTIO
■
750MHz –3dB Small Signal Bandwidth
The LT®6556 is a high speed triple 2:1 video multiplexer ■
450MHz –3dB 2V
with an internally fi xed gain of 1. The individual buffers
P-P Large-Signal Bandwidth
■
120MHz ±0.1dB Bandwidth
are optimized for performance with a 1k load and feature a ■
High Slew Rate: 2100V/µs
2VP-P –3dB bandwidth of 450MHz, making them ideal for ■
Fixed Gain of 1; No External Resistors Required
driving very high resolution video signals. Separate power ■ 72dB Channel Separation at 10MHz supply pins for each amplifi er boost channel separation ■ 52dB Channel Separation at 100MHz to 72dB, allowing the LT6556 to excel in many high speed ■ –84dBc 2nd Harmonic Distortion at 10MHz, 2V applications. P-P ■ –87dBc 3rd Harmonic Distortion at 10MHz, 2VP-P While the performance of the LT6556 is optimized for dual ■ Low Supply Current: 9.5mA per Amplifi er supply operation, it can also be operated with a single sup- ■ 6.5ns 0.1% Settling Time for 2V Step ply as low as 4.5V. Using dual 5V supplies, each amplifi er ■ ISS ≤ 330µA per Amplifi er When Disabled draws only 9.5mA. When disabled, the amplifi ers draw ■ Differential Gain of 0.033%, Differential Phase of 0.022° less than 330µA and the outputs become high impedance. ■ Wide Supply Range: ±2.25V (4.5V) to ±6V (12V) For applications requiring a fi xed gain of 2, refer to the ■ Available in 24-Lead SSOP and 24-Lead QFN Packages LT6555 datasheet.
U
The LT6556 is available in 24-lead SSOP and ultra-compact
APPLICATIO S
24-lead QFN packages. ■ RGB Buffers , LTC and LT are registered trademarks of Linear Technology Corporation. ■ UXGA Video Multiplexing All other trademarks are the property of their respective owners. ■ LCD Projectors
U TYPICAL APPLICATIO RGB Multiplexer and Line Driver Large-Signal Transient Response
V+ RINA LT6556 GINA 75Ω 1.5 BINA VIN = 2VP-P ×1 ROUT VS = ±5V 1.0 1k RL = 1k 75 T Ω A = 25°C 0.5 75Ω AGND 0 ×1 G OUTPUT (V) OUT –0.5 1k RINB GINB –1.0 BINB 75Ω –1.5 0 2 4 6 8 10 12 14 16 18 20 TIME (ns) 75Ω ×1 BOUT 1k SELECT A/B 6556 TA02 VREF 75Ω ENABLE DGND V– 6556 TA01 6556f 1
