LT1227 - 140MHz Video Current Feedback Amplifier

The H (Metal Can), J (Ceramic), and K (Metal Can) Packages From Linear Technology Are Now Obsolete

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.

A shutdown feature switches the device into a high impedance, low current mode, allowing multiple devices to be connected in parallel and selected. Input to output isolation in shutdown is 70dB at 10MHz for input amplitudes up to 10VP-P. The shutdown pin interfaces to open collector or open drain logic and takes only 4mµ 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.

The LT1227 is manufactured on Linear Technology’s proprietary complementary bipolar process.

特点
  • 140MHz Bandwidth: AV = 2, RL = 150 ohms
  • 1100V/µs Slew Rate
  • Low Cost
  • 30mA Output Drive Current
  • 0.01% Differential Gain
  • 0.01° Differential Phase
  • High Input Impedance: 14M ohms, 3pF
  • Wide Supply Range: ±2V to ±15V
  • Shutdown Mode: IS <250µA
  • Low Supply Current: IS = 10mA
  • Inputs Common Mode to Within 1.5V of Supplies
  • Outputs Swing Within 0.8V of Supplies
典型应用
LT1227 Typical Application
LT1227 Typical Application
应用
  • Video Amplifiers
  • Cable Drivers
  • RGB Amplifiers
  • Test Equipment Amplifiers
  • 50 Ohms Buffers for Driving Mixers
封装信息
LT1227 Package Drawing
LT1227 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LT1227CN8#PBFN-8C$3.08$2.40
LT1227CS8#PBFSO-8C$3.58$2.85
LT1227CS8#TRPBFSO-8C$2.91
LT1227MJ8CERDIP-8M$43.95
演示电路板
器件型号描述价格
DC417BDIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp$25.00
数据表
应用指南
设计要点
可靠性数据
LT Journal
CAD 符号
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R164 Reliability Data
Mar 2002 A Composite Amplifier Topology Wrings More Performance Out of the LTC1597 16-Bit Current Output DAC
Nov 1998 Level Shift Allows CFA Video Amplifier to Swing to Ground on a Single Supply
LT1227 Footprints and Symbols