LT6558 Linear Technology, LT6558 Datasheet

LT6558

Manufacturer Part Number

LT6558

Description

Single Supply Triple Video Amplifier

Manufacturer

Linear Technology

Datasheet

1.LT6558.pdf (12 pages)

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FEATURES

APPLICATIONS

■

TYPICAL APPLICATION

–3dB Small-Signal Bandwidth: 550MHz

–3dB 2V

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

LCD Video Projectors

RGB HD Video Ampliﬁ ers

Coaxial Cable Drivers

Low Supply ADC Drivers

IN R

IN G

IN B

P-P

22µF

AC-Coupled Triple Video Driver

Large-Signal Bandwidth: 400MHz

GND

IN R

GND R

IN G

GND G

IN B

GND B

LT6558

–

OUT R

OUT G

OUT B

*50Ω OR GREATER FOR R

BCV

6558 TA01a

220µF

158Ω

Ampliﬁ er with Input Bias Control

550MHz, 2200V/µs Gain of 1,

DESCRIPTION

The LT

internal ﬁ xed gain of 1 and a programmable DC input bias

voltage. This ampliﬁ er features a 400MHz 2V

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 ampliﬁ ers

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 ampliﬁ er 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.

All other trademarks are the property of their respective owners.

Single Supply Triple Video

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

6558 is a high speed triple video ampliﬁ er with an

Fast Large-Signal Transient Response

–10

–8 –6 –4 –2

= 5V

= 150Ω

= 2V

P-P

TIME (ns)

6558 TA01b

LT6558

P-P

signal

6558f

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