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

产品特点 Features

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

参数

应用

Video Amplifiers
Cable Drivers
RGB Amplifiers
Test Equipment Amplifiers
50 Ohms Buffers for Driving Mixers

典型应用图

LT1227 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LT1227CN8	PDIP	8	C	$4.17	$3.40
LT1227CN8#PBF	PDIP	8	C	$4.17	$3.40
LT1227CS8	SO	8	C	$4.58	$3.65
LT1227CS8#PBF	SO	8	C	$4.58	$3.65
LT1227CS8#TR	SO	8	C		$3.71
LT1227CS8#TRPBF	SO	8	C		$3.71

LT1227 数据手册及相关资料下载

数据手册(英文) : LT1227 - 140MHz Video Current Feedback Amplifier.PDF
应用指南 (英文) : AN118 - High Voltage, Low Noise, DC/DC Converters.PDF
应用指南 (英文) : AN57 - Video Circuit Collection .PDF
应用指南 (英文) : AN67 - linear Technology Magazine Circuit Collection, Volume III.PDF
应用指南 (英文) : AN70 - A Monolithic Switching Regulator with 100µV Output Noise.PDF
应用指南 (英文) : AN71 - The Care and Feeding of High Performance ADCs.PDF
应用指南 (英文) : AN72 - A Seven-Nanosecond Comparator for Single Supply Operation.PDF
应用指南 (英文) : AN85 - Low Noise Varactor Biasing with Switching Regulators: Vanquishing Villainous Vitiators Vis-à-Vis Vital Varactors.PDF
设计要点 (英文) : DN57 - Video Circuits Collection.PDF
设计要点 (英文) : DN92 - An Adjustable Video Cable Equalizer Using The LT1256.PDF
可靠性数据 : R164 Reliability Data .PDF
LT Journal : Mar 2002 A Composite Amplifier Topology Wrings More Performance Out of the LTC1597 16-Bit Current Output DAC.PDF
LT Journal : Nov 1998 Level Shift Allows CFA Video Amplifier to Swing to Ground on a Single Supply.PDF