LT6554

Obsolete

650MHz Gain of 1 Triple Video Buffer

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Overview

650MHz -3dB Small Signal Bandwidth
400MHz -3dB 2V_P-P Large Signal Bandwidth
100MHz ±0.1dB Bandwidth
High Slew Rate: 2500V/µs
Fixed Gain of 1 Requires No External Resistors
90dB Channel Separation at 10MHz
60dB Channel Separation at 100MHz
-82dBc 2nd Harmonic Distortion at 10MHz, 2V_P-P
-96dBc 3rd Harmonic Distortion at 10MHz, 2V_P-P
Low Supply Current: 8mA per Amplifier
6ns 0.1% Settling Time for 2V Step
TTL Compatible Enable: I_SS ≤ 100µA When Disabled
Differential Gain of 0.022%, Differential Phase of 0.006°
Wide Supply Range: ±2.25V (4.5V) to ±6V (12V)
Available in 16-Lead SSOP Package

The LT6554 is a high-speed triple video buffer with an internally fixed gain of 1. The individual buffers are optimized for performance with a 1k load and feature a 2V_PP full signal bandwidth of 400MHz, making them ideal for driving very high-resolution video signals. Separate power supply pins for each amplifier boost channel separation to 90dB, allowing the LT6554 to excel in many high speed applications.

While the performance of the LT6554 is optimized for dual supply operation, it can also be used on a single supply as low as 4.5V. Using dual 5V supplies, each amplifier draws only 8mA. When disabled, the amplifiers draw less than 100µA and the outputs become high impedance. Furthermore, the amplifiers are capable of turning on in less than 50ns, making them suitable for multiplexing and portable applications.

The LT6554 is manufactured on a proprietary low voltage complementary bipolar process and is available in the 16-lead SSOP package that fits in the same PCB area as an SO-8 package.

Applications

RGB Buffers
A/D Drivers
LCD Projectors

Documentation

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LT6554

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.