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LT1259/LT1260

Low Cost Dual and Triple

130MHz Current Feedback

Amplifiers with Shutdown

FEATURES

s

DESCRIPTIO

90MHz Bandwidth on

鹵5V

0.1dB Gain Flatness > 30MHz

Completely Off in Shutdown, 0碌A Supply Current

High Slew Rate: 1600V/碌s

Wide Supply Range:

鹵2V(4V)

to

鹵15V(30V)

60mA Output Current

Low Supply Current: 5mA/Amplifier

Differential Gain: 0.016%

Differential Phase: 0.075擄

Fast Turn-On Time: 100ns

Fast Turn-Off Time: 40ns

14-Pin and 16-Pin Narrow SO Packages

The LT

廬

1259 contains two independent 130MHz current

feedback amplifiers, each with a shutdown pin. These

amplifiers are designed for excellent linearity while driving

cables and other low impedance loads. The LT1260 is a

triple version especially suited to RGB video applications.

These amplifiers operate on all supplies from single 5V to

鹵15V

and draw only 5mA per amplifier when active.

When shut down, the LT1259/LT1260 amplifiers draw

zero supply current and their outputs become high

impedance. Only two LT1260s are required to make a

complete 2-input RGB MUX and cable driver. These

amplifiers turn on in only 100ns and turn off in 40ns,

making them ideal in spread spectrum and portable

equipment applications.

The LT1259/LT1260 amplifiers are manufactured on

Linear Technology鈥檚 proprietary complementary bipolar

process.

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

APPLICATIO S

s

RGB Cable Drivers

Spread Spectrum Amplifiers

MUX Amplifiers

Composite Video Cable Drivers

Portable Equipment

TYPICAL APPLICATIO

2-Input Video MUX Cable Driver

A

V

IN A

R

G

1.6k

CHANNEL

SELECT

EN A

75鈩?/div>

B

Square Wave Response

+

鈥?/div>

1/2 LT1259

R

F

1.6k

75鈩?/div>

CABLE

V

OUT

V

IN B

R

G

1.6k

+

鈥?/div>

EN B

75鈩?/div>

LT1259/60 鈥?TA01

75鈩?/div>

1/2 LT1259

R

F

1.6k

CABLE OUTPUT

R

L

= 150鈩?/div>

f = 30MHz

U

LT1259/50 鈥?TA02

U

1

數據列表
LT1259/60
標準包裝
55
類別
集成電路 (IC)
家庭
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
系列
-
放大器類型
電流反饋
電路數
2
輸出類型
-
轉換速率
1600 V/µs
增益帶寬積
-
-3db帶寬
130MHz
電流 - 輸入偏壓
20µA
電壓 - 輸入偏移
2000µV
電流 - 電源
5mA
電流 - 輸出 / 通道
60mA
電壓 - 電源，單路/雙路(±)
4 V ~ 30 V，±2 V ~ 15 V
工作溫度
-40°C ~ 85°C
安裝類型
表面貼裝
封裝/外殼
14-SOIC（0.154"，3.90mm 寬）
供應商設備封裝
14-SO
包裝
管件

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LT1259IS Datasheet

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