LT1815/LT1816/LT1817
Single/Dual/Quad 220MHz,
1500V/µs Operational Amplifiers
with Programmable Supply Current
DESCRIPTION
FEATURES
The LT®1815/LT1816/LT1817 are low power, high speed,
very high slew rate operational amplifiers with excellent
DC performance. The LT1815/LT1816/LT1817 feature
higher bandwidth and slew rate, much lower input offset
voltage and lower noise and distortion than other devices
with comparable supply current. A programmable current
option (LT1815 and LT1816A) allows power savings and
flexibilitybyoperatingatreducedsupplycurrentandspeed.
Thecircuittopologyisavoltagefeedbackamplifierwiththe
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220MHz Gain-Bandwidth Product
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1500V/μs Slew Rate
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6.5mA Supply Current per Amplifier
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Programmable Current Option
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6nꢀ/√Hz Input Noise ꢀoltage
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Unity-Gain Stable
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1.5mꢀ Maximum Input Offset ꢀoltage
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8μA Maximum Input Bias Current
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800nA Maximum Input Offset Current
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50mA Minimum Output Current, ꢀ
= ±±ꢀ
slewing characteristics of a current feedback amplifier.
OUT
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±±.5ꢀ Minimum Input CMꢁ, ꢀ = ±5ꢀ
S
The output drives a 100Ω load to ±±.8ꢀ with ±5ꢀ supplies.
On a single 5ꢀ supply, the output swings from 1ꢀ to 4ꢀ
with a 100Ω load connected to 2.5ꢀ. Harmonic distortion
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Specified at ±5ꢀ, Single 5ꢀ Supplies
Operating Temperature ꢁange: –40°C to 85°C
Space Saving MSOP and SSOP Packages
Low Profile (1mm) SOT-2± (ThinSOT™) and Leadless
DFN Packages
is –70dB for a 5MHz, 2ꢀ output driving a 100Ω load
P-P
in a gain of –1.
The LT1815/LT1816/LT1817 are manufactured on Linear
Technology’sadvancedlowvoltagecomplementarybipolar
process and are available in a variety of TSOT-2±, SO,
MSOP, SSOP and leadless DFN packages.
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.
APPLICATIONS
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Wideband Amplifiers
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Buffers
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Active Filters
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ꢀideo and ꢁF Amplification
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Communication ꢁeceivers
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Cable Drivers
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Data Acquisition Systems
Distortion vs Frequency
TYPICAL APPLICATION
–±0
A
ꢀ
ꢀ
= 2
ꢀ
S
O
Programmable Current Amplifier Switches
= ±5ꢀ
P-P
= 100Ω
–40
–50
–60
–70
–80
–90
–100
LOW POWEꢁ MODE
from Low Power Mode to Full Speed Mode
= 2ꢀ
ꢁ
L
5ꢀ
500Ω
±ꢁD HAꢁMONIC
2ND HAꢁMONIC
500Ω
–
ꢀ
LT1815
OUT
ꢀ
IN
2ND HAꢁMONIC
±ꢁD HAꢁMONIC
100Ω
+
I
SET
FULL SPEED MODE
HS/LP
40k
100k
10M
1M
FꢁEQUENCY (Hz)
–5ꢀ
181567 TA01
181567 TA02
181567fb
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