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LT1886 Datasheet(PDF) 1 Page - Linear Technology

Part No. LT1886
Description  Dual 700MHz, 200mA Operational Amplifier
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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1
LT1886
Dual 700MHz, 200mA
Operational Amplifier
s
700MHz Gain Bandwidth
s
±200mA Minimum IOUT
s
Low Distortion: –72dBc at 1MHz, 4VP-P, 25Ω, AV = 2
s
Stable in AV ≥ 10, Simple Compensation for AV < 10
s
±4.3V Minimum Output Swing, VS = ±6V, RL = 25Ω
s
7mA Supply Current per Amplifier
s
200V/
µs Slew Rate
s
Stable with 1000pF Load
s
6nV/
√Hz Input Noise Voltage
s
2pA/
√Hz Input Noise Current
s
4mV Maximum Input Offset Voltage
s
4
µA Maximum Input Bias Current
s
400nA Maximum Input Offset Current
s
±4.5V Minimum Input CMR, VS = ±6V
s
Specified at
±6V, ±2.5V
The LT
®1886 is a 200mA minimum output current dual op
amp with outstanding distortion performance. The ampli-
fiers are gain-of-ten stable, but can be easily compensated
for lower gains. The LT1886 features balanced, high
impedance inputs with 4
µA maximum input bias current,
and 4mV maximum input offset voltage. Single supply
applications are easy to implement and have lower total
noise than current feedback amplifier implementations.
The output drives a 25
Ω load to ±4.3V with ±6V supplies.
On
±2.5V supplies the output swings ±1.5V with a 100Ω
load. The amplifier is stable with a 1000pF capacitive
load which makes it useful in buffer and cable driver
applications.
The LT1886 is manufactured on Linear Technology’s
advanced low voltage complementary bipolar process and
is available in a thermally enhanced SO-8 package.
s
DSL Modems
s
xDSL PCI Cards
s
USB Modems
s
Line Drivers
Single 12V Supply ADSL Modem Line Driver
, LTC and LT are registered trademarks of Linear Technology Corporation.
+
1/2 LT1886
12.4
1:2*
12V
909
100
100
20k
10k
IN
IN +
10k
20k
1
µF
1
µF
0.1
µF
0.1
µF
1/2 LT1886
12.4
1886 TA01
909
100
*COILCRAFT X8390-A
OR EQUIVALENT
APPLICATIO S
FEATURES
TYPICAL APPLICATIO
DESCRIPTIO
ADSL Modem Line Driver Distortion
LINE VOLTAGE (VP-P)
0
–60
–70
–80
–90
–100
1886 TA01a
2
4
6
8
10
12
14
16
VS = 12V
AV = 10
f = 200kHz
100
Ω LINE
1:2 TRANSFORMER
HD2
HD3




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