参数资料
型号: LT1254CS#TRPBF
厂商: Linear Technology
文件页数: 1/8页
文件大小: 0K
描述: IC AMP VIDEO LOWCOST QUAD 14SOIC
标准包装: 2,500
应用: 电流反馈
电路数: 4
-3db带宽: 270MHz
转换速率: 250 V/µs
电流 - 电源: 6mA
电流 - 输出 / 通道: 55mA
电压 - 电源,单路/双路(±): 4 V ~ 28 V,±2 V ~ 14 V
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOIC
包装: 带卷 (TR)
LT1253/LT1254
1
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 isola-
tion, over 94dB at 5MHz. Dual and quad amplifiers signifi-
cantly 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.
s
Low Cost
s
Current Feedback Amplifiers
s
Differential Gain: 0.03%, RL = 150, VS = ±5V
s
Differential Phase: 0.28
°, RL = 150, VS = ±5V
s
Flat to 30MHz, 0.1dB
s
90MHz Bandwidth on
±5V
s
Wide Supply Range:
±2V(4V) to ±14V(28V)
s
Low Power: 60mW per Amplifier at
±5V
S
FEATURE
D
U
ESCRIPTIO
s
RGB Cable Drivers
s
Composite Video Cable Drivers
s
Gain Blocks in IF Stages
U
S
A
O
PPLICATI
U
A
O
PPLICATI
TYPICAL
Transient Response
VS = ±5V
AV = 2
RL = 150
VO = 1V
LT1253/54 TA02
VIN
VOUT
RG
620
RF
620
75
75
CABLE
75
+
1/2 LT1253
LT1253/54 TA01
AV = 1 +
RF
RG
AT AMPLIFIER OUTPUT.
6dB LESS AT VOUT.
BW = 90MHz
5V
–5V
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