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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 321

Video difference amplifier brings versatility to low voltage applications

Jon Munson

Abstract

The LT6552, a specialized dual-differencing 75MHz operational amplifier that is ideal for rejecting common mode noise as a video line receiver, is described.

Keywords

Video difference amplifier

LT6552

Introduction

The LT6552 is a specialized dual-differencing 75MHz operational amplifier ideal for rejecting common mode noise as a video line receiver. The input pairs are designed to operate with equal but opposite large-signal differences and provide exceptional high frequency common mode rejection (CMRR of 65dB at 10MHz), thereby forming an extremely versatile gain block structure that minimizes component count in most situations. ...

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