LT1722/LT1723/LT1724
Single, Dual, Quad 200MHz
Low Noise Precision Op Amps
FEATURES
DESCRIPTION
The LT®1722/LT1723/LT1724 are single/dual/quad, low
noise,lowpower,highspeedoperationalamplifiers.These
productsfeaturelowerinputoffsetvoltage,lowerinputbias
current and higher DC gain than devices with comparable
bandwidth. The 200MHz gain bandwidth ensures high
open-loop gain at video frequencies.
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3.8nV/√Hz Input Noise Voltage
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3.7mA Supply Current
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200MHz Gain Bandwidth
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Low Total Harmonic Distortion: –85dBc at 1MHz
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70V/μs Slew Rate
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400μV Maximum Input Offset Voltage
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300nA Maximum Input Bias Current
The low input noise voltage is achieved with reduced
supply current. The total noise is optimized for a source
resistance between 0.8k and 12k. Due to the input bias
current cancellation technique used, the resistance seen
by each input does not need to be balanced.
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Unity-Gain Stable
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Capacitive Load Stable Up to 100pF
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23mA Minimum Output Current
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Specified at 5V and Single 5V
™
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Low Profile (1mm) SOT-23 (ThinSot ) Package
The output drives a 150Ω load to 3V with 5V supplies.
On a single 5V supply the output swings from 1.5V to
3.5V with a 500Ω load connected to 2.5V. The amplifier
APPLICATIONS
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Video and RF Amplification
is unity-gain stable (C
≤ 100pF).
LOAD
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ADSL, HDSL II, VDSL Receivers
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Active Filters
The LT1722/LT1723/LT1724 are manufactured on Linear
Technology’s advanced low voltage complementary
bipolar process. The LT1722 is available in the SO-8 and
5-pin SOT-23 packages. The LT1723 is available in the
SO-8 and MS8 packages. The LT1724 is available in the
14-lead SO package.
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Wideband Amplifiers
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Buffers
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Data Acquisition Systems
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
TYPICAL APPLICATION
Differential Video Line Driver
C1 5pF
R3
750Ω
Line Driver Mulitburst Video Signal
R5 2k
–
R7
62.5Ω
+V
OUT
0.5V/DIV
1/2 LT1723
+
125Ω
CAT-5
TWISTED PAIR
V
IN
V
IN
V
+V
/2
C2 5pF
62.5Ω
LOAD
IN
V
IN
1V/DIV
75Ω
OUT
R2
2k
SOURCE
–V
R4 2k
OUT
0.5V/DIV
–V
–V /2
62.5Ω
LOAD
OUT
IN
–
R6
62.5Ω
R1
75Ω
1723 TA02
1723 TA01
1/2 LT1723
–V
+
IN
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