LT1210
1.1A, 35MHz Current
Feedback Amplifier
FEATURES
s
s
s
s
s
DESCRIPTIO
s
s
s
s
1.1A Minimum Output Drive Current
35MHz Bandwidth, A
V
= 2, R
L
= 10
Ω
900V/
µ
s Slew Rate, A
V
= 2, R
L
= 10
Ω
High Input Impedance: 10MΩ
Wide Supply Range:
±5V
to
±15V
(TO-220 and DD Packages)
Enhanced
θ
JA
SO-16 Package for
±5V
Operation
Shutdown Mode: I
S
< 200µA
Adjustable Supply Current
Stable with C
L
= 10,000pF
APPLICATIONS
s
s
s
s
s
Cable Drivers
Buffers
Test Equipment Amplifiers
Video Amplifiers
ADSL Drivers
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. Short-
circuit 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.
The LT1210 is available in the TO-220 and DD packages
for operation with supplies up to
±15V.
For
±5V
applica-
tions the device is also available in a low thermal resis-
tance SO-16 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO S
Twisted Pair Driver
15V
Total Harmonic Distortion vs Frequency
+
TOTAL HARMONIC DISTORTION (dB)
4.7µF*
100nF
R
T
11Ω
2.5W
–50
V
S
=
±15V
V
OUT
= 20V
P-P
A
V
= 4
–60
V
IN
+
LT1210
SD
T1**
R
L
100Ω
2.5W
–70
R
L
= 12.5Ω
–80
R
L
= 10Ω
R
L
= 50Ω
–90
–
4.7µF*
–15V
100nF
845Ω
1
3
* TANTALUM
** MIDCOM 671-7783 OR EQUIVALENT
274Ω
1210 TA01
–100
1k
10k
100k
FREQUENCY (Hz)
1M
1210 TA02
U
U
U
+
1
LINER [ LINEAR TECHNOLOGY ]
