Datasheet > LT1253

LT1253

更新时间： 2023-12-20 18:45:45

品牌	Logo	应用领域
亚德诺 - ADI		放大器视频放大器
页数	文件大小	规格书
8页	217K
描述
低成本双通道视频放大器

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LT1253 数据手册

LT1253/LT1254

Low Cost Dual and Quad

Video Amplifiers

DESCRIPTIO

EATURE

■

Low Cost

Current Feedback Amplifiers

Differential Gain: 0.03%, R_L= 150Ω, V_S= ±5V

Differential Phase: 0.28°, R_L= 150Ω, V_S= ±5V

Flat to 30MHz, 0.1dB

90MHz Bandwidth on ±5V

Wide Supply Range: ±2V(4V) to ±14V(28V)

Low Power: 60mW per Amplifier at ±5V

The LT1253 is a low cost dual current feedback amplifier

for video applications. The LT1254 is a quad version of the

LT1253. The amplifiers are completely isolated except for

the power supply pins and therefore have excellent isola-

tion, over 94dB at 5MHz. Dual and quad amplifiers signifi-

cantly reduce costs compared with singles; the number of

insertions is reduced and fewer supply bypass capacitors

are required. In addition, these duals and quads cost less

per amplifier than single video amplifiers.

O U

The LT1253/LT1254 amplifiers are ideal for driving low

impedance loads such as cables and filters. The wide

bandwidth and high slew rate of these amplifiers make

driving RGB signals between PCs and workstations easy.

The excellent linearity of these amplifiers makes them

ideal for composite video.

PPLICATI

RGB Cable Drivers

Composite Video Cable Drivers

Gain Blocks in IF Stages

■

The LT1253 is available in 8-pin DIPs and the S8 surface

mount package. The LT1254 is available in 14-pin DIPs

and the S14 surface mount package. Both parts have the

industry standard dual and quad op amp pin out. For

higher performance, see the LT1229/LT1230.

TYPICAL APPLICATI

Transient Response

75Ω

1/2 LT1253

–

75Ω

CABLE

–5V

620Ω

OUT

75Ω

620Ω

LT1253/54 • TA02

= 1 +

BW = 90MHz

V_S= ±5V

_V= 2

AT AMPLIFIER OUTPUT.

6dB LESS AT V

R_L= 150Ω

_O= 1V

OUT

LT1253/54 • TA01

12 3 4 5 6 7 8

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