= 150鈩?/div>
The LT1220 is a high speed operational amplifier with
superior DC performance. The LT1220 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 pre-
cision 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 large
capacitive loads which makes it useful in buffer or cable
driver applications.
The LT1220 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 applications with gains of 4 or greater the LT1221
can be used, and for gains of 10 or greater the LT1222 can
be used for increased bandwidth.
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
Two Op Amp Instrumentation Amplifier
R5
220鈩?/div>
R1
10k
R2
1k
R4
10k
Inverter Pulse Response
LT1220
鈥?/div>
V
IN
+
GAIN = [R4/R3][1 + (1/2)(R2/R1 + R3/R4) + (R2 + R3)/R5] = 102
TRIM R5 FOR GAIN
TRIM R1 FOR COMMON-MODE REJECTION
BW = 450kHz
LT1220 鈥?TA01
+
鈥?/div>
R3
1k
LT1220
V
OUT
R
F
= R
G
= 1k
V
S
=
鹵15V
V
IN
= 20V
f = 2MHz
U
LT1220 鈥?TA02
U
UO
+
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