LT1253 Low Cost Dual and Quad Video Amplifiers

The LT1253 is a low cost dual current feedback amplifier for video applications. The LT1254 is a quad version of the LT1253. The amplifiers are completely isolated except for the power supply pins and therefore have excellent isolation, over 94dB at 5MHz. Dual and quad amplifiers significantly reduce costs compared with singles; the number of insertions is reduced and fewer supply bypass capacitors are required. In addition, these duals and quads cost less per amplifier than single video amplifiers. The LT1253/LT1254 amplifiers are ideal for driving low impedance loads such as cables and filters. The wide bandwidth and high slew rate of these amplifiers make driving RGB signals between PCs and workstations easy. The excellent linearity of these amplifiers makes them ideal for composite video. The LT1253 is available in 8-pin DIPs and the S8 surface mount package. The LT1254 is available in 14-pin DIPs and the S14 surface mount package. Both parts have the industry standard dual and quad op amp pin out. For higher performance, see the LT1229/LT1230

产品特点 Features

Low Cost
Current Feedback Amplifiers
Differential Gain: 0.03%, RL = 150 ohms, VS = ±5V
Differential Phase: 0.28°, RL = 150 ohms, VS = &3177;5V
Flat to 30MHz, 0.1dB
90MHz Bandwidth on ±5V
Wide Supply Range: ±2V(4V) to ±14V(28V)
Low Power: 60mW per Amplifier at ±5V

参数

应用

RGB Cable Drivers
Composite Video Cable Drivers
Gain Blocks in IF Stages

典型应用图

LT1253 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) *
LT1253CN8	PDIP	8	C	$4.17	$3.40
LT1253CN8#PBF	PDIP	8	C	$4.17	$3.40
LT1253CS8	SO	8	C	$4.58	$3.65
LT1253CS8#PBF	SO	8	C	$4.58	$3.65
LT1253CS8#TR	SO	8	C		$3.71
LT1253CS8#TRPBF	SO	8	C		$3.71

LT1253 数据手册及相关资料下载

数据手册(英文) : LT1253 - Low Cost Dual and Quad Video Amplifiers.PDF
应用指南 (英文) : AN57 - Video Circuit Collection .PDF
可靠性数据 : R164 Reliability Data .PDF