Datasheet > LT1227_06

LT1227_06

更新时间： 2024-02-29 13:26:14

品牌	Logo	应用领域
凌特 - Linear		放大器
页数	文件大小	规格书
12页	244K
描述
140MHz Video Current Feedback Amplifier

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LT1227_06 数据手册

LT1227

140MHz Video Current

Feedback Amplifier

FEATURES

DESCRIPTIO

The LT^®1227 is a current feedback amplifier with wide

bandwidth and excellent video characteristics. The low

differential gain and phase, wide bandwidth, and 30mA

output drive current make the LT1227 well suited to drive

cables in video systems.

■

140MHz Bandwidth: A_V= 2, R_L= 150Ω

■

1100V/µs Slew Rate

■

Low Cost

■

30mA Output Drive Current

■

0.01% Differential Gain

■

0.01° Differential Phase

Ashutdownfeatureswitchesthedeviceintoahighimped-

ance, low current mode, allowing multiple devices to be

connected in parallel and selected. Input to output isola-

tioninshutdownis70dBat10MHzforinputamplitudesup

to 10V_P-P. The shutdown pin interfaces to open collector

oropendrainlogicandtakesonly4µstoenableordisable.

■

High Input Impedance: 14MΩ, 3pF

■

Wide Supply Range: ±2V to ±15V

■

Shutdown Mode: I_S< 250µA

■

Low Supply Current: I_S= 10mA

■

Inputs Common Mode to Within 1.5V of Supplies

■

Outputs Swing Within 0.8V of Supplies

The LT1227 comes in the industry standard pinout and

can upgrade the performance of many older products. For

a dual or quad version, see the LT1229/1230 data sheet.

APPLICATIO S

■

Video Amplifiers

The LT1227 is manufactured on Linear Technology’s

proprietary complementary bipolar process.

■

Cable Drivers

■

RGB Amplifiers

Test Equipment Amplifiers

50Ω Buffers for Driving Mixers

■

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

■

TYPICAL APPLICATIO

Video Cable Driver

Differential Gain and Phase

vs Supply Voltage

0.20

0.16

0.12

0.08

0.04

0.20

0.16

0.12

0.08

0.04

NTSC COMPOSITE

f = 3.58MHz

75Ω

LT1227

–

75Ω

CABLE

OUT

75Ω

OUT

= 1

∆φ

1227 TA01

∆G

SUPPLY VOLTAGE (±V)

LT1227 • TA02

12 3 4 5 6 7...12

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