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LT1809_1

Description
Single/Dual 180MHz, 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amps
File Size264KB,24 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
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LT1809_1 Overview

Single/Dual 180MHz, 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amps

LT1809/LT1810
Single/Dual 180MHz, 350V/µs
Rail-to-Rail Input and Output
Low Distortion Op Amps
FEATURES
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DESCRIPTIO
–3dB Bandwidth: 320MHz, A
V
= 1
Gain-Bandwidth Product: 180MHz, A
V
10
Slew Rate: 350V/µs
Wide Supply Range: 2.5V to 12.6V
Large Output Current: 85mA
Low Distortion, 5MHz: – 90dBc
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Input Offset Voltage, Rail-to-Rail: 2.5mV Max
Common Mode Rejection: 89dB Typ
Power Supply Rejection: 87dB Typ
Open-Loop Gain: 100V/mV Typ
Shutdown Pin: LT1809
Single in 8-Pin SO and 6-Pin SOT-23 Packages
Dual in 8-Pin SO and MSOP Packages
Operating Temperature Range: – 40°C to 85°C
The LT
®
1809/LT1810 are single/dual low distortion rail-
to-rail input and output op amps with a 350V/µs slew rate.
These amplifiers have a –3dB bandwidth of 320MHz at
unity-gain, a gain-bandwidth product of 180MHz (A
V
10)
and an 85mA output current to fit the needs of low voltage,
high performance signal conditioning systems.
The LT1809/LT1810 have an input range that includes
both supply rails and an output that swings within 20mV
of either supply rail to maximize the signal dynamic range
in low supply applications.
The LT1809/LT1810 have very low distortion (–90dBc) up
to 5MHz that allows them to be used in high performance
data acquisition systems.
The LT1809/LT1810 maintain their performance for sup-
plies from 2.5V to 12.6V and are specified at 3V, 5V and
±5V
supplies. The inputs can be driven beyond the sup-
plies without damage or phase reversal of the output.
The LT1809 is available in the 8-pin SO package with the
standard op amp pinout and the 6-pin SOT-23 package.
The LT1810 features the standard dual op amp pinout and
is available in 8-pin SO and MSOP packages. These
devices can be used as a plug-in replacement for many op
amps to improve input/output range and performance.
APPLICATIO S
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Driving A/D Converters
Low Voltage Signal Processing
Active Filters
Rail-to-Rail Buffer Amplifiers
Video Line Driver
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Distortion vs Frequency
–40
–50
–60
–70
–80
–90
R
L
= 100Ω, 3RD
–100
1809 TA01
High Speed ADC Driver
5V
5V
V
IN
1V
P-P
A
V
= +1
V
IN
= 2V
P-P
V
S
=
±5V
DISTORTION (dB)
+
LT1809
R3
49.9Ω
+A
IN
C1
470pF
–5V
R2
1k
–A
IN
LTC
®
1420
PGA GAIN = 1
REF = 2.048V
12 BITS
10Msps
–5V
R1
1k
–110
0.3
U
R
L
= 100Ω, 2ND
R
L
= 1k, 3RD
R
L
= 1k, 2ND
1
FREQUENCY (MHz)
1809 TA02
U
U
10
30
1

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Description Single/Dual 180MHz, 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amps Single/Dual 180MHz, 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amps Single/Dual 180MHz, 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amps Single/Dual 180MHz, 350V/ms Rail-to-Rail Input and Output Low Distortion Op Amps
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