LT1812_15 Datasheet, PDF (1/16 Pages) Linear Technology – 3mA, 100MHz, 750V/s Operational Amplifi er with Shutdown

FEATURES
n _{100MHz Gain Bandwidth}
n _{750V/μs Slew Rate}
n _{3.6mA Maximum Supply Current}
n _{50μA Supply Current in Shutdown}
n _{8nV/√Hz Input Noise Voltage}
n _{Unity-Gain Stable}
n _{1.5mV Maximum Input Offset Voltage}
n _{4μA Maximum Input Bias Current}
n _{400nA Maximum Input Offset Current}
n _{40mA Minimum Output Current, VOUT = ± 3V}
n _{±3.5V Minimum Input CMR, VS = ±5V}
n _{30ns Settling Time to 0.1%, 5V Step}
n _{Specified at ±5V, Single 5V Supplies}
n _{Operating Temperature Range: –40°C to 85°C}
n _{Low Profile (1mm) SOT-23 (ThinSOT}^™₎
and S8 Packages
APPLICATIONS
n _{Wideband Amplifiers}
n _Buffers
n _{Active Filters}
n _{Video and RF Amplification}
n _{Cable Drivers}
n _{Data Acquisition Systems}
LT1812
3mA, 100MHz, 750V/µs
Operational Amplifier
with Shutdown
DESCRIPTION
The LT^®1812 is a low power, high speed, very high slew
rate operational amplifier with excellent DC performance.
The LT1812 features reduced supply current, lower input
offset voltage, lower input bias current and higher DC gain
than other devices with comparable bandwidth. A power
saving shutdown feature reduces supply current to 50μA.
The circuit topology is a voltage feedback amplifier with the
slewing characteristics of a current feedback amplifier.
The output drives a 100Ω load to ± 3.5V with ±5V supplies.
On a single 5V supply, the output swings from 1.1V to
3.9V with a 100Ω load connected to 2.5V. The amplifier
is stable with a 1000pF capacitive load which makes it
useful in buffer and cable driver applications.
The LT1812 is manufactured on Linear Technology’s
advanced low voltage complementary bipolar process.
The dual version is the LT1813. For higher supply voltage
single, dual and quad operational amplifiers with up to
70MHz gain bandwidth, see the LT1351 through LT1365
data sheets.
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
4MHz, 4th Order Butterworth Filter
232Ω
274Ω
232Ω
V_IN
665Ω
220pF
–
47pF
LT1812
+
274Ω 562Ω
470pF
–
22pF
LT1812
+
V_OUT
1812 TA01
Filter Frequency Response
10
0
–10
–20
–30
–40
–50
–60
–70 _{VS = ±5V}
–80 ^VIN ^{= 600mVP-P}
PEAKING < 0.12dB
–90
0.1
1
10
FREQUENCY (MHz)
100
1812 TA02
1812fb
1