LT1795 Datasheet, PDF (1/12 Pages) Linear Technology – Dual 500mA/50MHz Current Feedback Line Driver Amplifier

FEATURES
s _{500mA Output Drive Current}
s _{50MHz Bandwidth, AV = 2, RL = 25Ω}
s _{900V/µs Slew Rate, AV = 2, RL = 25Ω}
s _{Low Distortion: –75dBc at 1MHz}
s _{High Input Impedance, 10MΩ}
s _{Wide Supply Range, ±5V to ±15V}
s _{Full Rate, Downstream ADSL Supported}
s _{Power Enhanced Small Footprint Packages}
TSSOP-20, S0-20 Wide
s _{Low Power Shutdown Mode}
s _{Power Saving Adjustable Supply Current}
U ^{s Stable with CL = 10,000pF}
APPLICATIO S
s _{ADSL HDSL2, G.lite Drivers}
s _Buffers
s _{Test Equipment Amplifiers}
s _{Video Amplifiers}
s _{Cable Drivers}
LT1795
Dual 500mA/50MHz
Current Feedback Line Driver
Amplifier
DESCRIPTIO
The LT^®1795 is a dual current feedback amplifier with high
output current and excellent large signal characteristics.
The combination of high slew rate, 500mA output drive
and up to ±15V operation enables the device to deliver
significant power at frequencies in the 1MHz to 2MHz
range. Short-circuit protection and thermal shutdown
insure the device’s ruggedness. The LT1795 is stable with
large capacitive loads and can easily supply the large
currents required by the capacitive loading. A shutdown
feature switches the device into a high impedance, low
current mode, reducing power dissipation when the de-
vice is not in use. For lower bandwidth applications, the
supply current can be reduced with a single external
resistor.
The LT1795 comes in the very small, thermally enhanced,
20-lead TSSOP package for maximum port density in line
driver applications.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
Low Loss, High Power Central Office ADSL Line Driver
V⁺
+IN +
1/2
LT1795
–
1k
165Ω
1k
12.5Ω
1:2*
100Ω
–
1/2
LT1795
–IN +
12.5Ω
V^–
* MIDCOM 50215 OR EQUIVALENT
1795 TA01
1