LT1351
250µA, 3MHz, 200V/µs
Operational Amplifier
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FEATURES
DESCRIPTION
The LT®1351 is a low power, high speed, high slew rate
operational amplifier with outstanding AC and DC perfor-
mance. The LT1351 features lower supply current, lower
input offset voltage, lower input bias current and higher
DC gain than devices with comparable bandwidth. The
circuit combines the slewing performance of a current
feedback amplifier in a true operational amplifier with
matched high impedance inputs. The high slew rate en-
sures thatthe large-signalbandwidth is notdegraded. The
amplifier is a single gain stage with outstanding settling
characteristics which make the circuit an ideal choice for
data acquisition systems. The output drives a 1kΩ load to
±13Vwith±15Vsuppliesanda500Ωloadto±3.4Von±5V
supplies. The amplifier is also stable with any capacitive
load which makes it useful in buffer or cable driver
applications.
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3MHz Gain Bandwidth
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200V/µs Slew Rate
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250µA Supply Current
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Available in Tiny MSOP Package
C-LoadTM Op Amp Drives All Capacitive Loads
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Unity-Gain Stable
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Power Saving Shutdown Feature
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Maximum Input Offset Voltage: 600µV
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Maximum Input Bias Current: 50nA
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Maximum Input Offset Current: 15nA
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Minimum DC Gain, RL = 2k: 30V/mV
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Input Noise Voltage: 14nV/√Hz
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Settling Time to 0.1%, 10V Step: 700ns
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Settling Time to 0.01%, 10V Step: 1.25µs
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Minimum Output Swing into 1k: ±13V
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Minimum Output Swing into 500Ω: ±3.4V
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Specified at ±2.5V, ±5V and ±15V
The LT1351 is a member of a family of fast, high perfor-
mance amplifiers using this unique topology and employ-
ing Linear Technology Corporation’s advanced
complementary bipolar processing. For dual and quad
amplifier versions of the LT1351 see the LT1352/LT1353
data sheet. For higher bandwidth devices with higher
supplycurrentseetheLT1354throughLT1365datasheets.
Singles, duals and quads of each amplifier are available.
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APPLICATIONS
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Battery-Powered Systems
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Wideband Amplifiers
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Buffers
Active Filters
Data Acquisition Systems
Photodiode Amplifiers
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, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load is a trademark of Linear Technology Corporation.
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TYPICAL APPLICATION
Instrumentation Amplifier
Large-Signal Response
R1
50k
R2
5k
R5
1.1k
R4
50k
R3
5k
–
LT1351
–
V
+
LT1351
–
IN
OUT
V
+
+
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 = 30kHz
AV = –1
1351 TA02
1351 TA01
1