LT1253CS8#TR Linear Technology, LT1253CS8#TR Datasheet

IC AMP VID DUAL CURR FDBK 8SOIC

LT1253CS8#TR

Manufacturer Part Number
LT1253CS8#TR
Description
IC AMP VID DUAL CURR FDBK 8SOIC
Manufacturer
Linear Technology
Datasheet

Specifications of LT1253CS8#TR

Applications
Current Feedback
Number Of Circuits
2
-3db Bandwidth
270MHz
Slew Rate
250 V/µs
Current - Supply
6mA
Current - Output / Channel
55mA
Voltage - Supply, Single/dual (±)
4 V ~ 28 V, ±2 V ~ 14 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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FEATURE
A
TYPICAL
PPLICATI
Low Cost
Current Feedback Amplifiers
Differential Gain: 0.03%, R
Differential Phase: 0.28 , R
Flat to 30MHz, 0.1dB
90MHz Bandwidth on 5V
Wide Supply Range: 2V(4V) to 14V(28V)
Low Power: 60mW per Amplifier at 5V
RGB Cable Drivers
Composite Video Cable Drivers
Gain Blocks in IF Stages
V
IN
A
AT AMPLIFIER OUTPUT.
6dB LESS AT V
V
R
620
G
= 1 +
S
A
+
1/2 LT1253
R
O
R
PPLICATI
620
G
F
R
–5V
F
5V
U
OUT
BW = 90MHz
S
.
L
L
75
O
= 150 , V
= 150 , V
U
75
LT1253/54 • TA01
75
CABLE
V
S
OUT
S
= 5V
= 5V
D
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.
Low Cost Dual and Quad
ESCRIPTIO
V
A
R
V
S
V
L
O
= 5V
= 2
= 150
= 1V
Transient Response
U
Video Amplifiers
LT1253/LT1254
LT1253/54 • TA02
1

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LT1253CS8#TR Summary of contents

Page 1

FEATURE S Low Cost Current Feedback Amplifiers Differential Gain: 0.03 150 , V L Differential Phase: 0. 150 , V L Flat to 30MHz, 0.1dB 90MHz Bandwidth on 5V Wide Supply Range: 2V(4V) to 14V(28V) ...

Page 2

LT1253/LT1254 BSOLUTE – Total Supply Voltage ( ............................. 28V Input Current ..................................................... 15mA Output Short-Circuit Duration (Note 1) ........ Continuous Operating Temperature Range LT1253C, LT1254C................................. ...

Page 3

ELECTRICAL CHARACTERISTICS Symbol Parameter t Small-Signal Rise Time r Rise and Fall Time t Propagation Delay p Note 1: A heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted indefinitely. Note ...

Page 4

LT1253/LT1254 W U TYPICAL PERFOR A Supply Current vs Supply Voltage –55°C 7 25° 125°C 4 175° SUPPLY VOLTAGE (±V) LT1253/54 ...

Page 5

W U TYPICAL PERFOR A 12V Frequency Response –1 – ±12V S – 150 – –5 1M 10M FREQUENCY (Hz) 12V ...

Page 6

LT1253/LT1254 W U TYPICAL PERFOR A Transient Response 787 150 APPLICATIO S I FOR ATIO Power Dissipation The LT1253/LT1254 amplifiers ...

Page 7

... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights LT1253CN8 LT1253CS8 ...

Page 8

... N14 0392 0.189 – 0.197 (4.801 – 5.004 0.150 – 0.157 (3.810 – 3.988 SO8 0392 0.337 – 0.344 (8.560 – 8.738 0.150 – 0.157 (3.810 – 3.988) SO14 0392 LT/GP 0193 10K REV 0 LINEAR TECHNOLOGY CORPORATION 1993 ...

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