LT1227CN8#PBF

更新时间： 2024-02-08 08:35:13

品牌	Logo	应用领域
凌特 - Linear		放大器光电二极管
页数	文件大小	规格书
12页	327K
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LT1227CN8#PBF 数据手册

LT1227

140MHz Video Current

Feedback Amplifier

DESCRIPTIO

EATURE

■

140MHz Bandwidth: A_V= 2, R_L= 150Ω

1100V/µs Slew Rate

The LT1227 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.

Low Cost

30mA Output Drive Current

0.01% Differential Gain

0.01° Differential Phase

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

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

oropen drain logic and takes only 4µs to enable or disable.

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.

O U

PPLICATI

■

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

TYPICAL APPLICATI

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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