= 150鈩?/div>
The LT1221 is a very high speed operational amplifier with
superior DC performance. The LT1221 is stable in a noise
gain of 4 or greater. It features reduced input offset
voltage, lower input bias currents and higher DC gain than
devices with comparable bandwidth and slew rate. The
circuit is a single gain stage that includes proprietary DC
gain enhancement circuitry to obtain precision with high
speed. The high gain and fast settling time make the circuit
an ideal choice for data acquisition systems. The circuit is
also capable of driving capacitive loads which makes it
useful in buffer or cable driver applications.
The LT1221 is a member of a family of fast, high perfor-
mance amplifiers that employ Linear Technology
Corporation鈥檚 advanced complementary bipolar process-
ing. For unity-gain stable applications the LT1220 can be
used, and for gains of 10 or greater the LT1222 can be used.
and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.
C-Load is a trademark of Linear Technology Cortporation.
APPLICATI
s
s
s
s
s
s
S
Wideband Amplifiers
Buffers
Active Filters
Video and RF Amplification
Cable Drivers
8-, 10-, 12-Bit Data Acquisition Systems
TYPICAL APPLICATION
Summing Amplifier
1k
V
A
V
B
V
C
1k
1k
Summing Amplifier Large-Signal Response
鈥?/div>
LT1221
V
OUT
1k
+
LT1221 鈥?TA01
V
S
=
鹵15V
V
IN
= 10V
P-P
f = 2MHz
U
LT1221 鈥?TA02
U
UO
1
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