LT1259 Datasheet, PDF (1/12 Pages) Linear Technology – Low Cost Dual and Triple 130MHz Current Feedback Amplifiers with Shutdown

FEATURES
s _{90MHz Bandwidth on ± 5V}
s _{0.1dB Gain Flatness > 30MHz}
s _{Completely Off in Shutdown, 0µA Supply Current}
s _{High Slew Rate: 1600V/µs}
s _{Wide Supply Range: ±2V(4V) to ±15V(30V)}
s _{60mA Output Current}
s _{Low Supply Current: 5mA/Amplifier}
s _{Differential Gain: 0.016%}
s _{Differential Phase: 0.075°}
s _{Fast Turn-On Time: 100ns}
s _{Fast Turn-Off Time: 40ns}
s _{14-Pin and 16-Pin Narrow SO Packages}
U
APPLICATIO S
s _{RGB Cable Drivers}
s _{Spread Spectrum Amplifiers}
s _{MUX Amplifiers}
s _{Composite Video Cable Drivers}
s _{Portable Equipment}
LT1259/LT1260
Low Cost Dual and Triple
130MHz Current Feedback
Amplifiers with Shutdown
DESCRIPTIO
The LT^®1259 contains two independent 130MHz current
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
±15V and draw only 5mA per amplifier when active.
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
2-Input Video MUX Cable Driver
V_{IN A}
R_G
1.6k
A
CHANNEL
SELECT
B
+ ^{EN A}
75Ω
1/2 LT1259
–
R_F
1.6k
V_{IN B}
R_G
1.6k
+ ^{EN B}
1/2 LT1259
–
R_F
1.6k
75Ω
LT1259/60 • TA01
75Ω
CABLE
V_OUT
75Ω
Square Wave Response
R_L = 150Ω
f = 30MHz
LT1259/50 • TA02
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