LT6556

1

6556f

LT6556

75Ω

75Ω

75Ω

75Ω

75Ω

75Ω

6556 TA01

AGND

ENABLE

DGND

1k

1k

1k

×1

×1

×1

SELECT A/B

TIME (ns)

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

4

8

12

16

6556 TA02

20

2

0

6

10

14

18

750MHz Gain of 1 Triple

2:1Video Multiplexer

with an internally fixed gain of 1. The individual buffers

are optimized for performance with a 1k load and feature a

driving very high resolution video signals. Separate power

supply pins for each amplifier boost channel separation

to 72dB, allowing the LT6556 to excel in many high speed

applications.

While the performance of the LT6556 is optimized for dual

supply operation, it can also be operated with a single sup-

ply as low as 4.5V. Using dual 5V supplies, each amplifier

draws only 9.5mA. When disabled, the amplifiers draw

less than 330µA and the outputs become high impedance.

For applications requiring a fixed gain of 2, refer to the

LT6555 datasheet.

The LT6556 is available in 24-lead SSOP and ultra-compact

24-lead QFN packages.

■

RGB Buffers

■

UXGA Video Multiplexing

■

LCD Projectors

■

750MHz –3dB Small Signal Bandwidth

■

■

120MHz ±0.1dB Bandwidth

■

High Slew Rate: 2100V/µs

■

Fixed Gain of 1; No External Resistors Required

■

72dB Channel Separation at 10MHz

■

52dB Channel Separation at 100MHz

■

■

■

Low Supply Current: 9.5mA per Amplifier

■

6.5ns 0.1% Settling Time for 2V Step

■

■

Differential Gain of 0.033%, Differential Phase of 0.022°

■

Wide Supply Range: ±2.25V (4.5V) to ±6V (12V)

■

Available in 24-Lead SSOP and 24-Lead QFN Packages

RGB Multiplexer and Line Driver

APPLICATIO S

FEATURES

DESCRIPTIO

TYPICAL APPLICATIO

, LTC and LT are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Large-Signal Transient Response