Datasheet Linear Technology LT1254 — 数据表

制造商	Linear Technology
系列	LT1254

低成本双路和四路视频放大器

数据表

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PDF, 222 Kb, 语言: en, 文件上传: Aug 6, 2017, 页数: 8
Low Cost Dual and Quad Video Amplifiers

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	LT1254CN#PBF	LT1254CS#PBF	LT1254CS#TRPBF
N	1	2	3
Package	N-14 包装外形图	SO-14 包装外形图	SO-14 包装外形图
Package Code	N	S	S
Package Index	05-08-1510 (N14)	05-08-1610 (S14)	05-08-1610 (S14)
Pin Count	14	14	14

参数化

Parameters / Models	LT1254CN#PBF	LT1254CS#PBF	LT1254CS#TRPBF
Av Min Stable, V/V	1	1	1
Avol, dB	4	4	4
Common Mode Rejection Ratio, dB	65	65	65
Number of Channels	4	4	4
Cload, pF	100	100	100
Design Tools	LTspice Model	LTspice Model	LTspice Model
Enoise 1/f Corner, Hz	22	22	22
Enoise Density, nV/rtHz	3	3	3
Export Control	no	no	no
GBW, MHz	250	250	250
Inoise, pA/rtHz	1.5	1.5	1.5
Inoise 1/f Corner, Hz	20	20	20
Iout, mA	55	55	55
Isupply, mA	6	6	6
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70
Over-the-Top	no	no	no
PSRR, dB	70	70	70
Rail-to-Rail In	no	no	no
Rail-to-Rail Out	no	no	no
SR, V/µs	250	250	250
Shutdown	no	no	no
Single Supply	no	no	no
Type	CFA	CFA	CFA
Voh (from V+), V	.7	.7	.7
Vol (from V-), V	.6	.6	.6
Vos, mV	5	5	5
Vs Max, V	28	28	28
Vs Min, V	4	4	4

生态计划

	LT1254CN#PBF	LT1254CS#PBF	LT1254CS#TRPBF
RoHS	Compliant	Compliant	Compliant

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设计须知

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4 x 4 Video Crosspoint Has 100MHz Bandwidth and 85dB Rejection at 10MHz &mdash DN81
PDF, 80 Kb, 档案已发布: Apr 1, 1994
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4 Г— 4 Video Crosspoint Has 100MHz Bandwidth
and 85dB Rejection at 10MHz вЂ“ Design Note 81
John Wright
4 Г— 4 Crosspoint
The compact high performance 4 Г— 4 crosspoint shown
in Figure 1 uses four LTВ®1205s to route any input to
any or all outputs. The complete crosspoint uses only
six SO packages, and less than six square inches of
PC board space. The LT1254 quad current feedback
ampliп¬Ѓer serves as a cable driver with a gain of 2. A
В±5V supply is used to ensure that the maximum 150В°C
junction temperature of the LT1254 is not exceeded in
the SO package. With this supply voltage the crosspoint
can operate at a 70В°C ambient temperature and drive
2V (peak or DC) on to a double-terminated 75О© video
cable. The feedback resistors of these output ampliп¬Ѓers have been optimized for this supply voltage. The
вЂ“3dB bandwidth of the crosspoint is over 100MHz with
only 0.8dB of peaking. All Hostile Crosstalk Rejection
is 85dB at 10MHz when a shorted input is routed to all
outputs. Keys to attaining this high rejection include:
1. Mount the feedback resistors for the surface mount
LT1254 on the backside of the PC board.
2. Keep the (вЂ“) input traces of LT1254 as short as …

模型线

系列: LT1254 (3)

LT1254CN#PBF LT1254CS#PBF LT1254CS#TRPBF

制造商分类

Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > High Speed Amplifiers (GBW > 50MHz) | Low Noise Amplifiers ( | High Voltage Amplifiers (>12V)

相关刊物

数据表 Datasheet Analog Devices LT1254

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