LT1210
1.1A, 35MHz Current
Feedback Amplifier
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FEATURES
DESCRIPTIO
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The LT ®1210 is a current feedback amplifier with high
output current and excellent large-signal characteristics.
The combination of high slew rate, 1.1A output drive and
±15V operation enables the device to deliver significant
power at frequencies in the 1MHz to 2MHz range. Shortcircuit protection and thermal shutdown ensure the
device’s ruggedness. The LT1210 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 and low
supply current mode, reducing dissipation when the
device is not in use. For lower bandwidth applications,
the supply current can be reduced with a single external
resistor.
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1.1A Minimum Output Drive Current
35MHz Bandwidth, AV = 2, RL = 10Ω
900V/µs Slew Rate, AV = 2, RL = 10Ω
High Input Impedance: 10MΩ
Wide Supply Range: ±5V to ±15V
(TO-220 and DD Packages)
Enhanced θJA SO-16 Package for ±5V Operation
Shutdown Mode: IS < 200µA
Adjustable Supply Current
Stable with CL = 10,000pF
Available in 7-Lead DD, TO-220 and
16-Lead SO Packages
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APPLICATIO S
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The LT1210 is available in the TO-220 and DD packages
for operation with supplies up to ±15V. For ±5V applications the device is also available in a low thermal resistance SO-16 package.
Cable Drivers
Buffers
Test Equipment Amplifiers
Video Amplifiers
ADSL Drivers
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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TYPICAL APPLICATIO
Twisted Pair Driver
Total Harmonic Distortion vs Frequency
15V
–50
4.7µF*
100nF
RT
11Ω
2.5W
+
VIN
LT1210
SD
–
T1**
1
4.7µF*
–15V
3
RL
100Ω
2.5W
100nF
845Ω
* TANTALUM
** MIDCOM 671-7783 OR EQUIVALENT
TOTAL HARMONIC DISTORTION (dB)
+
VS = ±15V
VOUT = 20VP-P
AV = 4
–60
–70
RL = 12.5Ω
–80
RL = 10Ω
RL = 50Ω
–90
–100
1k
274Ω
10k
100k
FREQUENCY (Hz)
1M
1210 TA01
1210 TA02
1210fa
1
+
