LT1722 Datasheet, PDF (1/16 Pages) Linear Technology – Single, Dual, Quad 200MHz Low Noise Precision Op Amps

LT1722/LT1723/LT1724
Single, Dual, Quad 200MHz
Low Noise Precision Op Amps
FEATURES
s _{3.8nV/√Hz Input Noise Voltage}
s _{3.7mA Supply Current}
s _{200MHz Gain Bandwidth}
s _{Low Total Harmonic Distortion: – 85dBc at 1MHz}
s _{70V/µs Slew Rate}
s _{400µV Maximum Input Offset Voltage}
s _{300nA Maximum Input Bias Current}
s _{Unity-Gain Stable}
s _{Capacitive Load Stable Up to 100pF}
s _{23mA Minimum Output Current}
s _{Specified at ±5V and Single 5V}
U
APPLICATIO S
s _{Video and RF Amplification}
s _{ADSL, HDSL II, VDSL Receivers}
s _{Active Filters}
s _{Wideband Amplifiers}
s _Buffers
s _{Data Acquisition Systems}
, LTC and LT are registered trademarks of Linear Technology Corporation.
DESCRIPTIO
The LT^®1722/LT1723/LT1724 are single/dual/quad, low
noise, low power, high speed operational amplifiers. These
products feature lower input offset voltage, lower input
bias current and higher DC gain than devices with compa-
rable bandwidth. The 200MHz gain bandwidth ensures
high open-loop gain at video frequencies.
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.
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 is unity-
gain stable (C_LOAD ≤ 100pF).
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.
TYPICAL APPLICATIO
Differential Video Line Driver
R3
750Ω
C1 5pF
R5 2k
V_IN
75Ω
SOURCE
R2
2k
–
1/2 LT1723
+
R7
62.5Ω
V_IN
C2 5pF
R4 2k
125Ω
CAT-5
TWISTED PAIR
–
R1
R6
75Ω
62.5Ω
1/2 LT1723
1723 TA01
+
–V_IN
+V_OUT
0.5V/DIV
V_IN/2 _62.5Ω
+V_OUT LOAD
–V_{OUT 62.5Ω}
–V_IN/2 ^LOAD
V_IN
1V/DIV
– V_OUT
0.5V/DIV
Line Driver Mulitburst Video Signal
1723 TA02
172234fa
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