LT6558

1

6558f

550MHz, 2200V/µs Gain of 1,

Single Supply Triple Video

Amplifier with Input Bias Control

internal fixed gain of 1 and a programmable DC input bias

bandwidth, 2200V/µs slew rate and a unique ability to drive

heavy output loads to 0.8V of the supply rails, making the

LT6558 ideal for a single 5V supply, wideband video applica-

tion. With just one resistor, the inputs of all three amplifiers

can be programmed to a common voltage level, simplifying

and reducing the need for external circuitry in AC-coupled

applications. Without the programming resistor, the input

bias circuit becomes inactive, allowing the use of an external

clamp circuit or direct coupled input.

The LT6558 has separate power supply and ground pins for

each amplifier to improve channel separation and to ease

power supply bypassing. The LT6558 provides uncom-

promised performance in many high speed applications

where a low voltage, single supply is required.

The LT6558 is available in 16-lead SSOP and 5mm × 3mm

DFN packages.

■

LCD Video Projectors

■

RGB HD Video Amplifiers

■

Coaxial Cable Drivers

■

Low Supply ADC Drivers

■

–3dB Small-Signal Bandwidth: 550MHz

■

■

Slew Rate: 2200V/µs

■

Fixed Gain of 1, No External Resistors Required

■

AC Coupling with Programmable DC Input Bias

■

Output Swings to 0.8V of Supply Rails

■

Full Video Swing with 5V Single Supply

■

Differential Gain: 0.02%

■

Differential Phase: 0.02°

■

Enable/Shutdown Pin

■

High Output Current: ±90mA

■

Supply Range: 3V to 7.5V

■

Operating Temperature Range: –40°C to 85°C

■

Available in 16-Lead SSOP and 5mm × 3mm DFN

Packages

AC-Coupled Triple Video Driver

+

–

IN R

GND

EN

IN R

OUT R

BCV

LT6558

158

Ω

*50

5V

5V

5V

5V

6558 TA01a

22

µF

220

µF

+

–

IN G

IN G

OUT G

22

µF

220

µF

+

–

IN B

IN B

OUT B

22

µF

220

µF

GND R

GND G

GND B

Fast Large-Signal Transient Response

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

All other trademarks are the property of their respective owners.

TIME (ns)

–10

3

4

5

6558 TA01b

2

1

0

–8 –6 –4 –2

02468

10

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION