LT6559

1

6559f

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Low Cost 5V/±5V 300MHz

Triple Video Amplifier

in 3mm × 3mm QFN

has been optimized for excellent video performance on a

single 5V supply, yet fits in the small footprint of a 3mm ×

3mm QFN package. With a –3dB bandwidth of 300MHz, a

0.1dB bandwidth of 150MHz, and a slew rate of 800V/µs,

the LT6559’s dynamic performance is an excellent match

For multiplexing applications such as KVM switches or

selectable video inputs, each channel has an independent

high speed enable/disable pin. Each amplifier will turn on

in 30ns and off in 40ns. When enabled, each amplifier

draws 3.9mA from a 5V supply. The LT6559 operates on

a single supply voltage ranging from 4V to 12V, and on

split supplies ranging from ±2V to ±6V.

The LT6559 comes in a compact 16-lead 3mm × 3mm QFN

package, and operates over a –40°C to 85°C temperature

range. The LT6559 is manufactured on Linear Technology’s

proprietary complementary bipolar process.

3-Input Video MUX Cable Driver

■

300MHz Bandwidth on Single 5V and ±5V

■

■

High Slew Rate: 800V/µs

■

Wide Supply Range:

±2V to ±6V (Dual Supply)

4V to 12V (Single Supply)

■

80mA Output Current

■

Low Supply Current: 3.9mA/Amplifier

■

Shutdown Mode

■

Fast Turn-On Time: 30ns

■

Fast Turn-Off Time: 40ns

■

Small 0.75mm Tall 16-Lead 3mm × 3mm QFN Package

■

■

LCD Projectors

■

KVM Switches

■

A/V Receivers

■

MUX Amplifiers

■

Composite Video Cable Drivers

■

ADC Drivers

TIME (10ns/DIV)

OUTPUT

200mV/DIV

6559 TA02

f = 10MHz

Square Wave Response

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

All other trademarks are the property of their respective owners.

5V

–5V

5V

–5V

–

+

1/3 LT6559

182

Ω

301

Ω

A

EN A

–

+

1/3 LT6559

182

Ω

301

Ω

EN B

B

C

CHANNEL SELECT

100

Ω

100

Ω

5V

–5V

–

+

1/3 LT6559

182

Ω

EN C

100

Ω

75

Ω

75

Ω

CABLE

301

Ω