lt1259is-trpbf Linear Technology Corporation, lt1259is-trpbf Datasheet

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lt1259is-trpbf

Manufacturer Part Number
lt1259is-trpbf
Description
Low Cost Dual And Triple 130mhz Current Feedback Amplifiers With Shutdown
Manufacturer
Linear Technology Corporation
Datasheet
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
90MHz Bandwidth on 5V
0.1dB Gain Flatness > 30MHz
Completely Off in Shutdown, 0 A Supply Current
High Slew Rate: 1600V/ s
Wide Supply Range: 2V(4V) to 15V(30V)
60mA Output Current
Low Supply Current: 5mA/Amplifier
Differential Gain: 0.016%
Differential Phase: 0.075
Fast Turn-On Time: 100ns
Fast Turn-Off Time: 40ns
14-Pin and 16-Pin Narrow SO Packages
RGB Cable Drivers
Spread Spectrum Amplifiers
MUX Amplifiers
Composite Video Cable Drivers
Portable Equipment
V
V
IN A
IN B
1.6k
1.6k
R
R
G
G
2-Input Video MUX Cable Driver
+
+
1/2 LT1259
1/2 LT1259
U
A
EN A
EN B
CHANNEL
1.6k
1.6k
SELECT
R
R
F
F
B
LT1259/60 • TA01
U
75
75
75
75
CABLE
V
OUT
DESCRIPTIO
The LT
feedback amplifiers, each with a shutdown pin. These
amplifiers are designed for excellent linearity while driving
cables and other low impedance loads. The LT1260 is a
triple version especially suited to RGB video applications.
These amplifiers operate on all supplies from single 5V to
When shut down, the LT1259/LT1260 amplifiers draw
zero supply current and their outputs become high
impedance. Only two LT1260s are required to make a
complete 2-input RGB MUX and cable driver. These
amplifiers turn on in only 100ns and turn off in 40ns,
making them ideal in spread spectrum and portable
equipment applications.
The LT1259/LT1260 amplifiers are manufactured on
Linear Technology’s proprietary complementary bipolar
process.
15V and draw only 5mA per amplifier when active.
130MHz Current Feedback
, LTC and LT are registered trademarks of Linear Technology Corporation.
Amplifiers with Shutdown
Low Cost Dual and Triple
®
R
f = 30MHz
1259 contains two independent 130MHz current
L
= 150
Square Wave Response
U
LT1259/LT1260
LT1259/50 • TA02
1

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lt1259is-trpbf Summary of contents

Page 1

... The LT1259/LT1260 amplifiers are manufactured on Linear Technology’s proprietary complementary bipolar process. , LTC and LT are registered trademarks of Linear Technology Corporation CABLE V OUT ...

Page 2

... Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART TOP VIEW NUMBER – + LT1259CN GND 3 LT1259CS 4 –IN G LT1259IN 5 +IN G LT1259IS 6 GND 7 + – PACKAGE 16-LEAD PLASTIC DIP T = 150 C, JMAX T = 150 C, JMAX 15V, EN pins = 0V, pulse tested, unless otherwise noted. S CONDITIONS T ...

Page 3

ELECTRICAL C HARA TERISTICS each amplifier SYMBOL PARAMETER V Maximum Output Voltage Swing OUT CMRR Common-Mode Rejection Ratio Inverting Input Current Common-Mode Rejection PSRR Power Supply Rejection ...

Page 4

... Note 3: Ground pins are not internally connected. For best performance, connect to ground. Note calculated from the ambient temperature T J power dissipation P according to the following formulas: D LT1259CN/LT1259IN • LT1259CS/LT1259IS • 110 C/ LT1260CNLT1260IN • LT1260CS/LT1260IS: T ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS 5V Frequency Response PHASE GAIN ± 150 1. ...

Page 6

LT1259/LT1260 W U TYPICAL PERFOR A CE CHARACTERISTICS Output Impedance in Shutdown vs Frequency 100 V = ± 1. 0.1 100k 1M 10M 100M FREQUENCY (Hz) LT1259/60 • TPC11 Output ...

Page 7

PLIFIED SCHE ATIC APPLICATIO S I FOR ATIO Feedback Resistor Selection The small-signal bandwidth of the LT1259/ LT1260 are set by the external feedback resistors and the internal junction capacitors result, the ...

Page 8

LT1259/LT1260 U U APPLICATIO S I FOR ATIO The input slew rate of the LT1259/LT1260 is approxi- mately 270V/ s and is set by internal currents and capaci- tances. The output slew rate is set by the value of the ...

Page 9

U U APPLICATIO S I FOR ATIO Amplifier Disable Time 150 110 Differential Input Signal Swing The differential input swing is ...

Page 10

LT1259/LT1260 U TYPICAL APPLICATIO S 4. Capacitors C1 and C6 are optional and only needed to reduce overshoot when are activated with a long inductive ground wire. 5. The R, G and B amplifiers have ...

Page 11

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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. ...

Page 12

... Cascadable Enable 64:1 Multiplexing 1100V/ s Slew Rate, Shutdown Mode Single, Dual and Quad Current Feedback Amplifiers R13 75 V RED OUT 75 V GREEN OUT 75 V BLUE OUT + R16 75 R17 75 R18 75 LT1259/60 • TA08 125960fas, sn125960 LT/TP 1197 REV A 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1993 ...

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